Welcome to a New Feature of
Machinist Materials, Inc.
This is a regulated
bulletin board that will post questions
and answers about materials and equipment, their use, 
specifications, limitations, recommendations.  

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Send your questions and answers to 
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Question:  
I need some advise from some real machinist.
of. unfortunately I had a stroke and I have come back quite a bit and I'm getting better it seems. 
I need to hear from other Machinists who have over come these handicaps and have gone
on with there work and there lives.  So let me here from some of you guys.  John O.
Answer: 
Question:  I need the threading dial assembly option for the Goodway GW-1440 engine lathe.  Any condition considered.  Howard N. Wolff:  Hnwolffmfg2@aol.com
Answer: 
Question:  
I just bought a Goodway GW-1440 lathe, built in the 70's.  I am impressed with the construction of the lathe, but would like to find a operators manual, maintenance manual including wiring schematic, parts book, and best source for parts.  Photo copies would even be acceptable.  Also, a good photo of the feed chart would be handy.  You can publish my email address.
Howard N. Wolff
hnwolffmfg2@aol.com
Answer: 
 
Question:  HS 1020 Lathe: I'm looking for information on this machine I believe it's USSR made but have no information I was told it was a copy of a Colchester Triumph
it seems well made and very heavy construction the indicators are in Russian for the speed controls and thread instructions, can anybody help in anyway?  Thanks A.D. Gill
Answer: 
Question:  I just bought a Shye Shing? model engine lathe...I cannot find any information on this lathe, would love to find a manual, but all the information on the lathe seems to have rubbed off...Any help would be appreciated.

-Campbell Levy

Answer: We get a lot of questions about manuals, parts lists and obtaining parts.   First suggestion would to be to hunt the internet, do a search, more and more information from both companies and individuals are being posted on servers.  Second personal suggestion is to going to one of the links on our links page: http://www.lathes.co.uk  Tony Griffiths has found and put up a LOT of information, more than any other site.  The site now offers reprints and original books, documents and manuals for sale.   The last suggestion is hunting on eBay, I am not sure why eBay has so much in the way of machinist and machine tool items but they do.  There are dozens of auction sites but for some reason eBay is the only one that has a lot of the stuff we guys are looking for, if you have not been on eBay you should give it a try.  We personally have purchase a good deal of tooling over the past half dozen years.   Some might have a more personal piece of information for Mr. Levy, please feel free to send it to chat@machinist-materials.com and we will be sure to get it up.  Thanks for all your support, MM
Question: 
I have a 14" Southbend lathe, mfgd. in 1928 (I'm told) I need parts for the feed assembly, including the split nut. I would like to get a parts book if possible.   Thank you
Alex
Answer:  Southbend is such an industry standard, that even for old ones there is lots of information and parts.  We would suggest to going to http://www.lathes.co.uk/index.html as one source, they have collected an amazing amount of data and manuals for machine tools.  We also have an old Southbend, a 9" and have been able to locate a fair number of parts on eBay. Many sellers purchase old lathes and break them down for their part and sell these individually, which is a shame I think, but it does allow us that need parts a chance to purchase. 
John D. 
Question:  Does any one have a gear change chart for a Summit 11x32 inch lathe (mine is serial #385)  to cut metric, Whitworth and unified threads? A chart for any compound head lathe with a 6 tpi lead screw would probably work.  Or is there some software? Thanks, 
Bob J.
Answer:  We would suggest to going to http://www.lathes.co.uk/index.html as one source, they have collected an amazing amount of data and manuals for machine tools.
Question: I am looking for an owners or users manual for this metal lathe the size is 11" sawing 5 1/2 ft bed catalog number is 84-SB can anyone help?  Honeybug
Answer:  We would suggest to going to http://www.lathes.co.uk/index.html as one source, they have collected an amazing amount of data and manuals for machine tools.
Question: 
I have acquired a Rockwell lathe, model 46-200 and would like to see how much it is worth. I have no idea where to start. Ebay does not have one on any auctions. Can you give me a general idea, or perhaps send me  in the right direction?
Thanks Tony in Texas
Answer:  We would suggest to going to http://www.lathes.co.uk/index.html as one source, they have collected an amazing amount of data and manuals for machine tools.
Question:  Can anyone tell me how to identify a weld in 316 stainless steel that has been finished without an x-ray or chroming.  Is there a solution or dye that would discolor at the weld?
Chris C. 
Answer:
Question: I recently purchased a Cincinnati hydroshift lathe, do not know what year but electrical schematic shows 1959. Does anyone know how I can obtain parts manuals for this lathe?  Also, lathe is stuck in one gear and will not switch out, any suggestions what might be the problem? Fluid levels are good. 
P. Sharp
Answer:  We would suggest to going to http://www.lathes.co.uk/index.html as one source, they have collected an amazing amount of data and manuals for machine tools.
Question:   I run a machine shop and would like to know where to get a chart on the speed and feed of machining stainless steel. Clyde M.  
Answer:  I have compiled a list of speeds and feeds for 316 SS that is an average of all the old recommended values that were given by the mills that manufactured the material. I would be glad to send a copy of what I have to CLYDE M. The info was used successfully by many companies that were noted for being expert at machining 316 SS, I used the data myself for over 20 years. Lon J. Link to speed and feed chart and more from Lon J.
Question:  Need wiring schematic for a Leblonde 3220-25 3nfl1182 can anyone help or direct me to someone who can? Thanks. Mike. 
Answer:   We would suggest to going to http://www.lathes.co.uk/index.html as one source, they have collected an amazing amount of data and manuals for machine tools.
Question:  I have a SB lathe with spacers to make it into a 24in lathe from a 16in lathe. Has about10 ft of bed. All accessories have the spacers. Any ideas on this machine? Thanks you.  GD
Answer:  
Question:  Does anyone have an operator's manual for a Supermax YCM 16 VS? Ours is missing and they are out of print.
Eric
Answer:  We would suggest to going to http://www.lathes.co.uk/index.html as one source, they have collected an amazing amount of data and manuals for machine tools.
Question:  I OWN A FOSTER #3 TURRET LATHE.  I AM INTERESTED IN OBTAINING ANY DATA ON THIS LATHE OR ANY FOSTER LATHE.
Frank
Answer:  I would suggest trying http://www.lathes.co.uk/index.html 
they have a great deal of information on a wide variety of machines.  GD
Question:  I WAS LOOKING AT A 9 INCH SOUTHBEND METAL LATHE MODEL 344CL.COULD YOU TELL ME WHAT YEARS WERE THEY MADE AND DO YOU KNOW IF THE HEADSTOCK HAS BEARINGS OR BUSHING. I DON'T KNOW THE SERIAL NUMBER THANKS.  MV
Answer:  I would suggest trying http://www.lathes.co.uk/index.html 
they have a great deal of information on a wide variety of machines.  GD
Question:   I need a recommendation for a ASME equivalent
for an Italian spring steel. 3545-80 grade 52 it is a low alloy steel. I will use round billet and slice like sausage. The heat treat is 35 rc-c. Is there a reference
sheet that cross references different materials to ASME standards??
Thanks Arn
Answer:
Question:  Is there an easy way to replace the yoke and sliding sleeve on an Atlas 10" model D lathe. The yoke won't fit, must I remove the reversing gearbox... but I am not sure how??  Must all the change gear assembly be removed, to remove the gear case??  Joe
Answer:
Question:  I have an atlas #10128910 and I am in search for some gears for it. I
need the gears that are on the gear change handles that  transfer power from one end of the tumbler box to the other. They are around 15 to 20 tooth I would guess ( they are gone) any help will be great, thank you.

mike hedger
Answer:
Question:
I did some work for this old lathe the model no. 101.28940 and ser. no. is 001608 I need the gear that sets in the quick change lever that runs the a-e can you help me in any way .The inside key is stripped out so it wont turn the shaft. Thank You Mike Sligar  
Answer:
Question:  I am trying to build a contemporary 4 poster bed from 1.75" aluminum square tubing .125 wall.  Don't want to show any fastener from the outside at right angle joinery.  My current idea is using a piece of 1.5 C Channel welded or bolted to adjacent faces of the vertical post,  The rail could be slipped over the channel and bolted from the inside.  If the bottom face of the rail were open for a few inches, there would be access to lock washer and nut inside the rail.  Any ideas are welcome.  Lastly, does anyone foresee 1/8" wall 1.75 aluminum square NOT being rigid enough to span the 80" rail length without flexing ?

Mark Casstevens

Answer:
Question:  We plan to start machining a polypropylene fiberglass composite material on a new CNC router. The core is sandwiched between two outer laminates and is honeycomb type. Some of the operations will be blanking and others will be finishing of formed (compressed) edges. Will an arbor saw be best for blanking or compression spiral router? What types and brands of cutters are recommended. Thanks for your help.
K.J.
Answer:
Question: Would anyone have or have access to any original or copies of manuals for a 1932 Foster #3 "Fastenermatic" turret lathe?  I'm trying to restore one and need the manuals.  Thanks!
Jim Zak  
Response:  Hi Jim,  Any luck on the Foster turret lathe?  I have one also and can't find any information.  Mine works good except the feed are stuck on, even when disengaged. I have to put the lead screws in neutral and use manually. 
Debra Finn
Answer:
Question:
I recently purchased a W.P. DAVIS metal lathe made in Rochester, N.Y.. for $300 with all the tooling. it seems to be in fair condition and everything works. it's about a 12" x 30" between centers but I can't get any info on it. none of the web sites have any info or even this brand name. can anyone tell me where i can get any info on it like manuals parts tooling date of mfg. or its worth. any information would be helpful and appreciated. 
JIMMY

Answer: Physically it looks a lot like a Southbend. I could not find W.P. Davis anywhere myself.  I would suggest checking with two sources for information: http://www.southbendlathe.com and http://www.lathes.co.uk/index.html this is a good site for archival information on hundreds of machine tools.   JD. 
Answer: 
Mine is also a WP and like Jimmy I can't find anything but would like to show him what my model looks like.
 Here are some pics.
http://www.ammoman.com/RobsLathe
 Rob
Question: I am looking for something that would help me to understand or learn how to read gages and blueprint.  I guess it would be something like reference or a dictionary and a website where if I have questions then I could go in and chat with the expert.  thank you  Neng Her
Answer:
Question: I have a very old Holbrook Lathe, Model B, No. 13C 193, and am looking for a manual or at the very least, some information on the lathe, especially how to cut metric threads. Do I need a different chasing dial gear or lead screw gears. If anyone could help me it would be greatly appreciated. Regards Pete.
Answer: One of the places that has been resource rich for us has been eBay. You just never know when interesting or odd items will show up. Another resource is a site in the UK,  http://www.lathes.co.uk/holbrook/page5.html
They actually have it listed. Their link is on our links page.  GD
Answer:
Question: I have a lathe (Model #10128990, S/#105731). Would appreciate any sources you could provide for 1) manual 2)parts.  Mike  Morris
Answer:  What is the make of the lathe?  George P.
Question: I have a Van Norman Mill model #16 I was wondering were is a good place to find parts and accessories for it? I just got it and if any one can give me advice or there opinion  of this brand I would appreciate it. David 
Answer: 
Congratulations! There are several hundred avid VanNorman Mill enthusiasts and collectors worldwide and I suggest that you first join the group at http://finance.groups.yahoo.com/group/vannorman/
Needless to say, it's the best brand ever created, by far, and, incidentally, you have one of the rarest VN's ever created (less than 1000 - I have one of the other 16's). What we do most is swap advice, parts & leads on obtaining parts. Come on over & check it out.  William Shepherd
Question: I'm wanting to invest in a wood working lathe, The purpose I was want to use it for will be turning tops for walking sticks and possibly the shaft of the stick it's self, as well as blows etc.  Can any one point me in the right direction of a good lathe.
Answer:
Question:  Have you ever heard of something called "machinist's chain"?  A friend of mine received some as a gift a number of years back.  It's particularly smooth chain, standard size links, made of stainless steel.  Natalie G.
Answer:
Question:  
I need to machine titanium, any trick coolant or type of tools I need to machine keyways and snap-ring grooves. Arnie J.
Answer:
Question:  I NEED INFORMATION ON HOW TO OBTAIN AN OPERATIONAL MANUAL FOR A 14 1/2 X 16 SOUTHBEND QUICK CHANGE LATHE.
AlHlcm
b
Answer:  We would suggest to going to http://www.lathes.co.uk/index.html as one source, they have collected an amazing amount of data and manuals for machine tools.
Question: Does anyone have any suggestions on what might be a practical way of running slotted material (11/32" 12-15 steel) on a 5 spindle automatic davenport machine? I am currently running the job out of 12-15 material and there has been talk of eliminating a operation if i could possibly run the part with slotted material. So far I've had very little luck trying to machine the slotted material.
Bill
Answer:
 Question:   I need information about Annealing (Stress-relieving) UHMW Polyethylene.  The manufacturer says that the cooling rate is important, and we want to find out the reason(s) why the cooling rate is important.  We cannot get specifics from the manufacturer about the cooling rate and time. We are interested in finding out the effect a higher or lower cooling rate has on the material. We are also trying to locate a diagram of the cooling rate. Could you provide information or tell me where I can find this information? J. Hutchinson
Answer:  

Annealing (stress relief) of machined or semi-finished UHMW products is recommended when dimensional stability and freedom of distortion (warping & bowing) of the finished part is desired. Annealing temperatures of 210-310° F (100-160° C) combined with slow cooling will relieve residual stresses, normally caused by non-uniform crystallization during the cooling process. Thicker parts are more subject to residual stresses, since the outside surface cools much more rapidly than the insulated core of the part or billet. Rapid cooling creates an outer shell which restricts shrinking and promotes internal stresses.

In order to properly anneal our Gar-DurŪ  brand of UHMW Polyethylene, the part should be heated in an oven or a liquid bath containing silicone oil or glycerine. Temperatures above 275-280° F (135-138° C), the crystalline melting range of Gar-DurŪ UHMW are preferred. Although heating rate is not important (20° F or 10° C/hr above 175° F or 80° C), cooling rate is critical and care must be taken to slowly reduce the oven or bath temperature at 10° F (5° C) per hour until reaching 150° F (65° C). The part should then be wrapped an insulating blanket to permit slow cooling for 24 hours.

Machined parts with narrow tolerances should only be rough machined prior to stress relief. These parts should be fixtured during the annealing process due to shrinkage. Care should be taken not to overheat the machined surface during final machining to eliminate potential distortion and dimensional changes.

Best Regards,
 
Dan
 
Daniel Garland
Garland Manufacturing Co.
www.garlandmfg.com
207/283-3693
Question:  I was wondering if anybody had a cure for tool handles that are starting to degrade - I have some Bondhus ball-drivers with plastic handles that have begun to form a smelly film on them after they have been stored in a damp basement for a short time.
Eric N. 
Answer:
Question: I'm looking for a parts list for a Goodway CNC Lathe Model 410.  Any idea and where I could find one.  
Thanks.  Michelle P
Answer:  We would suggest to going to http://www.lathes.co.uk/index.html as one source, they have collected an amazing amount of data and manuals for machine tools.
Question:  I have a 9"x48" Southbend lathe ( with taper attachment) in my shop. I would like to have a mini lathe to take with me on holidays in my R/V. Do you know who made the smallest lathe with a taper attachment. Thanks kindly. Berrie
Answer:  Go to www.leblondeusa.com with your serial # and they will look up your lathe and let you know if they have parts or manuals available. they also own Southbend now and can provide similar help those.  DeWayne T.
Question:  I've been trying very hard to find an affordable
material that stays cool, is smooth on the inside diameter and is flexible that comes in 3" on the inside diameters...the thickness is not too big of an issue only it is necessary to state that I plan to use
this for creating a more efficient air intake channel to pipe between my air filter and throttle body of my car... any knowledgeable on appropriate materials to use for this project would be greatly appreciated.  Thanks J. Wolff
Answer: 
Question: Does anyone have an operator's manual for a Supermax YCM 16 VS? Ours is missing and they are out of print.
Eric
Answer:  I would suggest trying a search on eBay, they have a number of manuals for older equipment.  
Robert T. 
Answer:  We would suggest to going to http://www.lathes.co.uk/index.html as one source, they have collected an amazing amount of data and manuals for machine tools.
Question: 
I want to look at and print some charts for speeds, and feeds for a metal lathe and also for what drill to use for what tap. any help will be appreciated. Carla and Greg
Answer: 
There are a number of "charts" available from numerous companies and some are even online.  One suggestion is that these speed and feed rates are mostly set to best possible production and for the hobbyist we don't really need highest-fastest speed and feed possible.  Some times what we want is just a good finish and a little more time invested is OK. 
 Go to our links page and check out the MIT and Army manuals: http://www.machinist-materials.com/links.htm
I would recommend that you invest in a copy of the Machinery Handbook, you'll only need one to last you most of the rest of your life. A old friend once told me that if the world was destroyed and had to start over the only two books that one would need would be the bible and the Machinery's Handbook and he wasn't that sure about the bible.  If the $85 price is too dear search eBay for an older addition.   John D.
Question:  What I want is some colored pieces or Acrylic, not clear. I currently have some clear, but for some reason it is very difficult to drill properly, it keeps trying to melt inside and when it gets hot like that it becomes very brittle. The thickness that I will end up, is like a ring approx. 3/8 thick by 1/2 dia. with a 5/16 hole in the middle. Any other suggestions?  Thanks Randy
Answer:  I would suggest brad-point bits and flood cooling with a maybe water. Making sure the tool is very sharp and polished.  We do not have a supply of colored acrylic. John D
Question:
Do you know of anything that can be used to strengthen highly detailed and quite thin lexan (remote control car body shells.)
thanks Matt
Answer: Matt, You might try applying a few coats of the high viscosity cement for acrylics that can be found on page #3135 of the Issue #108 McMasterr-Carr catalog. I have done extensive bonding with both the low  viscosity and high viscosity cement, and for achieving a build-up to strengthen the body you would want the high viscosity.
Good luck,
Steve
Question: I recently acquired a LeBlond 16" X 8" engine lathe. The serial number is: C9110.  Where can I find the manufacturer's specs on this lathe? One thing I need is whether or not it has hardened ways.  Is LeBlond still in business?  Does anyone have any idea what the value of this lathe might be?  It is larger than I can justify in my shop, and I would like to sell it and replace it with a smaller lathe, plus some additional equipment / accessories.

Dean Jackson
Answer:  go to www.leblondeusa.com with your serial # and they will look up your lathe and let you know if they have parts or manuals available. they also own Southbend now and can provide similar help those.  DeWayne T.
Question: 
I recently purchased a W.P. DAVIS metal lathe made in Rochester, N.Y.. for $300 with all the tooling. it seems to be in fair condition and everything works. it's about a 12" x 30" between centers but I can't get any info on it. none of the web sites have any info or even this brand name. can anyone tell me where i can get any info on it like manuals parts tooling date of mfg. or its worth. any information would be helpful and appreciated. 
JIMMY
Answer: Do you have any pictures?  This might be just another name for an Atlas or some other manufacturer, also I would do searches on Ebay for the unit. You never know what you will find. Bob W. 
Question: 
Can anyone put me on to a used vertical bench mill the smallest machine obtainable along with a universal precision dividing heads?  Your information will certainly be welcome with my thanks.
 Stella
Answer: Check out the Sherline group of products www.sherline.com   R. Holbrook
Question:  I'm redoing the Turcite on a YCM-30 Supermax Mill. Does any one know where to purchase a piece of Turcite 12"x24"x1/6" and 1 pint of turcite glue. Jazman
Answer:  www.mtsandtg.com has turcite and bonding materials. Dennis
Question: I have an old Rockwell wood lathe Cat # 46 200; Ser # 2 3023 but no manual. I want to replace the bearings but do not know how. Are there any manuals around for this lathe or any suggestions? Thanks ,Siek
Answer:  PDF copy of manual,  Benoit. 
Response: Thanks, next question: Does anyone know where I can find clamp plates, part number 61 for this Rockwell wood lathe?  Siek
Answer:
Question: Has anybody any suggestions for slide design and materials to use for a free sliding table on a wood panel saw. My intention is to make the table from laminated wood components and MDF.  Is UHMW self adhesive tape good enough as a frictionless bearing surface for the slides and where can it be purchased ?  All suggestions welcome Regards  Frank
Answer:  Machinist Materials can order UHMW pressure adhesive tape in rolls up to 50' in length and in thicknesses from .010" to .125" both standard and custom widths.  JD 
Question: I would like to know what is the best thing to put on cotton linings on blinds, to stop  them going moldy Foster
Answer:
Question:  I have a question on "stellite" prepared steel. I'm trying to under stand exactly what this process is. I know it's a hardening process, but is it a application to the surface of a particular steel part. Or is it a process to the steel of the part itself, so the entire part is hardened? Any help would greatly be  appreciated!!!    THX.   ...Mark
Answer:
Question:  I came across some beryllium copper scraps and would like to do a little creating with them, someone told me that machining it would create a toxic gas, is this true?
James Page
Answer: James, I have a friend who worked in a machine shop where they machined beryllium copper. He developed very serious respiratory problems from the dust he inhaled, and was basically disabled for several years. He is doing fine now. I work with thin sheets of this material at times but do not create any air-borne dust. I wouldn't know about any issue concerning gasses. Good luck and play safe!  Steve
Question:  I am looking for a waterproof plastic(?) material approximately 3/8-1/2 thick, 6"x6"- none of the measurement are critical- on which to mount an electric contact switch which is a control for an electric vehicle. I am not too familiar with carbon fibre and am wondering if this is the proper material to use? The switch connects to the accelerator pedal by linkage and endures a lot of pressure. The electric system is 12volt(2x6volt) in series.
If you might be able to guide me to a site that may have the proper material for this repair, I would be thankful.  Thank You.  Jack
Answer: Most plastics are waterproof to the extent that you are asking for. Delrin is hard and easy to machine. UHMW has very low absorption qualities.  Nylon might be an excellent choice. I would suggest check out our Direct Sales. JD
Question:  Can you tell me how good 303 stainless steel will hold up to a 10% solution of sodium hydroxide? Justin Adams
Answer:
Question: I have recently had a problem being that I need to put 4 M20 tapped holes into a hardened piece of material (approx 46 - 48 Rockwell C).  I have been told you can spark them in, but I have had no luck in finding anyone who can do this for me, and I was wondering if there is any other way of doing this.  Sandra W.
Answer:  My guess is to try a EDM facility. I knew one place in Campbell, CA that may have the machine to do that. Try "Rocky's Wire EDM". His address is as follows. (I'm no longer in Campbell and have no business interest in his company, just a friend.)

Rocky's Wire EDM
1-408-370-0339 FAX:1-408-379-1901
502-F VANDELL WAY
CAMPBELL, CA 95008


Jim Conragan
Question:  I am trying to find out what the specifics are on red copper. I saw a length of flat bar material  that looked similar to brass, but it had a slightly different coloration. I noticed a tag on the material  identifying the material as red copper. I would like to know some info on this material, such as what it is used for , hardness ,etc. I was impressed with the coloration of the material and would like to use it for knife guards and bolsters. Any info on this will be greatly appreciated. 

Follow up: there is a tag that says: 

973782
CF Brass 360
Red/c:Copper
RL
65066-35

Can anyone explain what this information means?

 Roland R

Answer:   This may be what is called Red Brass which may contain 84 to 86% copper with the rest being zinc. There are other alloys that contain some lead (13 to 17%) and small amount of tin. Of course it may not be this material at all!  Reference: Materials Handbook, 14th Ed.   Jim C.
Question:    I want to know if 303 can be completely annealed by heating to 1050 deg C in a vacuum furnace and then chilled with liquid nitrogen? I have flats that are bright drawn and are little lively to say the least after they have been machined. I need them to stay flat and straight. 
Sizes are 28mm x 8mm x 315mm long.
All the best Pete
Answer:
To Pete's question about 303 annealing the answer is yes but the heat up and cool down must be done slowly (~300C/per hour) in order to prevent distortion.  A Vacuum heat-treater would probably run this process often and if he was flexible about timing I could be very cheap to do for such a small part. Vacuum would mean no discoloration. Mark  
Question:  I have stainless with an end stamping of 99c 193 and a printed  part number of HT 63887. Do any of these marking make any sense to anyone as far as grade goes, I could use a little help to get this stock back in use. Thanks Tom B.
Answer: HT 63887 refers to the mill heat treatment lot number, you should be able to go back to the original suppler and get new certifications on this material.  Gary D.  
Question:  Silicon Carbide, can it be machined, how and with what? Tim Elam
Answer:  Try a EDM shop, as long as it is electrically conductive that process should work.  Jim C.
Question:  I have a 1947 Model "A" Southbend metal lathe 9" by 48" . I have just bought a lever operated collet closer . I sort of think it may be for a Atlas lathe but it fits mine fine but doesn't work very well on the release and hold . I disassembled it and all that is inside is a flat slotted race with 8 ball bearings. I wonder if it is supposed to have a expansion spring inside ? Any help would be welcome. Thanks. Barrie Blake
Answer: Try http://www.lathes.co.uk/index.html they have a lot of archival information.  John D. 
Question: Does anyone know where I can buy scrap 309 Stainless in 1" round bars, minimum length 8 1/2 " ? Thanks, Barrie B.
Answer:
Question: Can anyone tell me where to purchase some .006" stainless, spring, or music wire. Joe- 
Answer:  MSC has it in steel. (we have a link for MSC on our links page)  Nolan Supply Corp has it in steel and stainless steel. Ken M. 
Question: Can 303 stainless be hardened, or preferably case hardened ? I`m looking for a free machining stainless than can be hardened on one section of a part I want to fabricate. Thanks, Joe
  300 series stainless can not be heat treated, 400 series can, see chart. John D. 
Question:  I'm new to working plastics but want to experiment making knife handles.  Questions:
1)  The type of jigsaw blade required.  Sawing speed?
2)  The best drills to use--HSS? Cobalt?
3)  Can Delrin be sanded using a (bench mounted) belt sander?  Speed?
Belt composition?  Degree of finish that can be achieved?
4)  Can Delrin be painted?
5)  Adhesive to use to bond to steel?
Sorry for all the questions, but any help/links would be appreciated!

Karl M.
Answer: Delrin is a marvelous material and can be worked by methods used on either wood or aluminum. You might check our links page for the Glue Guru to ask about adhesives. John D.
Question:
 I have a job machining 9" Nylatron wheels that are cable guides. The last time I ran the job (on a CNC) the most serious problem was chip breakage...they would not break unless you started and stopped ie. interrupting the cut. I  can program in dwells to accomplish this in the machining process but the chips still tend to wrap around every thing. Is any tooling available that will cause the Nylatron to chip off like delrin? I used very sharp carbide insert OD and ID tools. Thanks for the help
 Mike C.
Answer: Mike, I have had the same problem and solved it by attaching a shop-vac in close to the tooling and simply kept  the "ribbon-chip" sucked up as it is produced. Really works slick! Eichers
Answer: Unfortunately nylon and even worse UHMW will not form a chip like Delrin. Another problem is that this ribbon is strong and if enough of it gets wrapped around things it could jam the machine and cause real damage. Bob P. 
Question: I have a LeBlonde Lathe (12"x60") of I think WW II era.  My grandfather bought it to use in his construction business.  Upon his death I inherited it.  It originally was driven by an overhead shaft system, and my grandfather converted it to electric.  I see no identifying tags or markings on the lathe itself, except for the brass plate that gives the individual gear ratios.  This is marked with the LeBlonde Company Cincinnati Ohio.
It is a heavy old lathe and in good repair except for the saddle which has had an encounter with a hi-lo.  The handles and dials have been broken off.  Does anyone know how to identify this lathe ?  Where can I go to gather information on this lathe, owners manual, repair manual, schematic etc ????  Does anyone know where replacement parts can be obtained ?  I hate to make a boat anchor out of it.  Any and all information would be appreciated.  Please email me if more information is needed to identify this.  Mancha 
ANSWER:  Go to www.lathes.co.uk ; terrific site featuring machinery from all over the world. It's called Lathe Archive. Cool stuff. Enjoyed your sight. Joe -
ANSWER:  I would suggest checking eBay for manuals and/or catalogs. We have a Southbend 9" 1930's model and were able to find some literature and replacement part this way.  SEARCH 
Bob P. 
Question: 
I need a tape measure with 1/16" increments on one edge and decimal equivalents on the other edge.  Do you know where I can find one?   Ken G. 
Answer: Two good places to find these type of tools is either MCS or Grainger's. We have added these links to our links page. John D. 
Question: Years ago, I bought a tool to automatically find centers on pipe or cylinders.  It was one of the simplest, most ingenious tools I have ever seen.  It was made of aluminum, pewter, or "pot metal", being gray in finish.  It was in the form of a "J", being about 1-1/2" wide at the narrow, or leg, part and about 3-1/2" wide at the Hump or business end.  There was a "vee" relief-machined into the inner part of the "J" and had two raised pegs on the back side of this.  You simply hung the "vee" on a pipe or cylinder and the inside edge of the long leg of the "J" precisely bisected the pipe or cylinder.  The two pegs on the back were simply for larger pipes or cylinders that were too big to fit into the recessed "vee" on the front.   Scribing one mark across the face of a cylinder, then rotating the tool any unspecified amount and scribing again would give the center at the intersection of the two scribed lines.  "Duck" Tape across the end of a piece of pipe gave the same results.  Unfortunately, I misplaced it and would like to procure another one.   Can anyone help?  Don Calis
Answer: 
I have a 2001 Grizzly Industrial catalog which has, on page 419, machinist combination squares which have a V head which can be used for center finding.  There are several models having several prices.  I am sure other sources would have a similar tool.  Emil K
Question: When we get different 300 series stainless bars in they have distinct paint markings on the ends. How does a guy
tell the difference between 302-304 (other than machining)
from the 316 stuff?? Is their a cheap way like chemical or
spark testing? Arnold J.
Answer: 
If you go to our links page and click on the
 
US Army Doctrine
and Training Digital Library
TRAINING CIRCULAR
No. 9-524
FUNDAMENTALS
OF MACHINE TOOLS
 
Chapter on indentifying materials: http://155.217.58.58/cgi-bin/atdl.dll/tc/9-524/Ch2.htm#top
 
316 is not magnetic at all, some 304 stainless is.
  John D
Question: When talking about plastics can someone explain the Rockwell numbers.  Mark H.
Answer: 
Question: On table saws built by "Jet," they have a small (about 1" x 1" x (1/16)") plastic wafer that is located under the rip fence locking handle.  This plastic wafer appears to be nylon.  At least it is white in color, and no adhesives will hold it in place.  This wafer is required to lock the rip fence.  Without it, there is too much play, and the fence cannot be locked in place.  It appears that this is a common problem with these saws, that has no solution for "Jet."

I would like to replace the small piece that is attached to the rip
fence with a long thin piece that I would attach instead to the table.
The new piece would need to be 2" tall x 84" long x (1/16)" thick.  I could attach it with small screws.  I would prefer to glue it down in some manner. Any ideas?  Thanks. Jon H.
Answer:
Question: 
I have machined a threaded aluminum plug to close a threaded hole in an aluminum oil tank.  It is a dry sump oil tank in a car.  What brand of epoxy should I use to make sure the plug does not leak?  Thanks, Hank
Answer: 
Teflon Tape, then stake(peen)  it in place , i don't know if i would epoxy it in place what if you need to remove it later,  
after you put in plug, you use a center punch and a ball peen hammer and you dimple around the threads on the plug, this tightens the threads against each other and locks it in place.

Robert W.

Answer: I would think one of the problems would be heat. They make emergency replacement oil plugs, ones that are a type of rubber that expand when you tighten them like a boat transom plug.  Michael P. 
Question: I will be using a UHMW round to produce a hub centric ring for a car wheel.  I am tempted to interference fit the UHMW into the aluminum wheel.  The aluminum wheel inside diameter is 2.875".  Should I make the UHMW ring outside diameter 2.875" at 65 degrees F?  What will happen at minus 20 degrees F?  Rich B.
Answer: I would imagine that the question is about the thermal contraction, expansion of aluminum vs. UHMW.  For UHMW the Coefficient of Linear Thermal Expansion is 7.2 x 105 In/In/F. Where for aluminum the Coefficient of Linear Thermal Expansion is 23.2e-6/K.    I am not sure how these two  numbers equate, but I would believe that aluminum is going to have a higher thermal expansion than UHMW. Paul G.  
Answer:  Rich, using the numbers that Paul gave the coefficient of thermal expansion of the UHMW is higher than that for aluminum. The coefficient for aluminum is 23.2 x 10e-6/K which is 12.9e-6/F while that of UHMW is 72e-6/F. Since the initial diameters at 65F is 2.875 then the change in diameters at -20F is as follows:
Aluminum:    2.875 x 12.9e-6 x (-20 -(65)) = 2.875 x 0.0000129 x -85 = -0.0029"
UHMW: 2.875 x 72e-6 x (-20 -(65)) = 2.875 x 0.000072 x -85 = -0.0166"
The UHMW will be about 0.014" smaller in diameter at -20F (If I didn't goof with the numbers.)
Jim C.
Question: Hi, I have been trying to find an instrument for measuring angles on a cylinder on my lathe.  I am not a machinist; but rather a wood worker on a wood lathe.  A friend tells me of some type of measuring device that I can put on the cylindrical piece of wood, set to level; then, turn a dial 14 degrees (for example) turn from original point of reference until instrument is level again.  That would produce one point 14 degrees from the original. 
Do you have or is there really such an instrument of measurement?  Please offer any information you can to help me in this ongoing struggle.  Thomas P. 
Answer: Cut a "vee" in one side of a two-by-four or two-by six that can be strapped to the cylinder with bungee cords.  Size of "Vee" is not important.  Mount a "needle" protractor on the flat side of the cylinder and rotate the wood and protractor assembly until the protractor reads 0 degrees or 90 degrees or some other point of reference, turn the cylinder until the protractor reads 14 degrees, and Voila!!! problem solved.  If you don't understand this , E-mail me and I will draw it up for you in TurboCad.  The "needle" protractor is of the type sold at Sears, Home Depot, or Lowes for about $7 to $10.  This is usually black, with two edges 90 degrees to each other, a white dial face, and a red pendulum needle.  If you really want to get fancy and accurate, you can replace the protractor with a digital level.  Smartlevel makes one for about $125 that your hardware store can get for you if he doesn't stock it.  Don Calis
Question: 
I have recently bought an old Leblonde lathe, 14x42.  It has quite  a bit of wear on the carriage ways.  I would like to install turcite after machining.  Do you know how one is supposed to attach it? Nancy
Answer: After a pocket is machined into the wear surface, the Turcite-B is secured in place using a special epoxy.  
See http://www.mtsandtg.com/products.htm 
Somewhere I heard that Turcite-B is the same as Rulon 142, but I haven't confirmed it yet.  You can also build up the wear surfaces using Moglice
epoxy.  
See www.moglice.com.
Ken
Question: I build live steam locomotives. I want some stainless steel round stock that I can cut with my power hack saw without ruining the blade. It has to be free machining and resistant to corrosion because it will be used to make throttle parts that will be subjected to fairly high temperatures say 300 to 500 degrees.
Will the 303 stainless work or do I need 304. What about 416?  Rick
Answer: When you cut the Stainless the secret is, coolant coolant coolant, do not let the blade get hot, and reduce the speed of the saw, do not run the blade too fast. For a good coolant try using water, not WD40 or oil these do not dissipate the heat fast enough.    You might try using a metal abrasive blade to cut the smaller size Stainless Steel bars. I do not see why  the 304 or 303 wouldn't  work for your application. 303 is easier to machine than 304 but 304 is better in a welding application, 316 is better suited for high temp applications than 303 or 304. Gary   
Answer:
Question: What adhesives will work well with UHMW or Delrin?  Or should I plan on using mechanical fastening with these plastics?  Michael
Answer: I know of no adhesive that works on UHMW, but you can weld it, look at www.abbeon.com they have a catalog that contains thermoplastic welders. The only other means to fasten UHMW is mechanical. Robert
Answer:
We offer several types of adhesive for use with UHMW.  Please contact our sales office for your specific application.
Daniel Garland
Garland Manufacturing Co.
www.garlandmfg.com
207/283-3693