I just did a small 30PC run on my desktop machine a EMCO Compact 5 Lathe with the high precision3 jaw chucks O.D. jaws. It was 2.5 diameter and the customer wanted .500 thick x 1.622 dia bore. I quickly learned that HSS SHARP (New) tooling worked best. In fact I used a 2 flute HSS endmill as a boring bar with excellent results. The I.D. was for a press fit bearing which I had no problems holding. UHMW doesn't like heat and you must use SHARP Tooling, the chips can be controlled by interrupted cuts. In this above video the final O.D. and 2 chamfers could have been done on one operation. To avoid the chips balling up near the spindle use the final pass stating at the headstock and travel towards the tailstock. This way the chip will be pushed off the part & you can save an operation. Programming is easier than you think as well.
Hi Daniel, nice to see some machining, had to look up this material to read the data sheet UHMW plastic, that is some stringy stuff many polys are. Nice box of proudly made parts thank you. Lance & Patrick.
Hey guys thanks, I used to make cotton candy balls in the lathe before with all the chips catching up with this stuff. I believe this is what they make cutting boards from.
Hey Daniel. Good to see a video from you. I am sure you must be busy with at least 3 things at the same time at the moment. Working at your normal job, Workshop No 1 and Workshop No 2. Hoping to see some more updates on Workshop No 2, soon to be No 1 if that all makes sense, lol. Thanks for the video. Peter.
Hey Peter, yeah been busy but things coming together. I will try to post a video this weekend of the shop progress. A lot has been happening, I didn't want to burn everyone out on progress updates.
thanks.. im running this material for the for the first time.. holy crap headache. my surface finish looks like a thread... never mind my actual threads.
How difficult would it be to turn a UHMWPE spool 3" OD x 2" wide with a 1" arbor? How would I make a center hole for a piece of shafting with a tolerance of 0.2490-0.2495 I need the spool to turn freely, but with zero slop and super smooth? Would a center hole 0.254" in diameter be enough clearance? Any advice would be greatly appreciated. Thank you
I know this is an old video, but here’s to hoping you can comment back. I’m trying to turn a 3” dia UHMW round bar and make the end of it into a hemisphere. I’d like to make a jig that uses a carbide or HSS metal turning tool. Where I’m going from a 0” diameter at the top of the hemisphere to a 3” dia at the OD of the hemisphere, I’m not sure what RPM to use. Do you have any suggestions?
Just got done a job using this stuff when someone ordered it instead of Delrin because it was cheaper. Ya can't use carbide insert tools. Ya need to go old school. High-speed steel tool bit ground 15deg top and side , and RAZOR sharp. I ground mine on my surface grinder. Stoned mirror smooth. Heat/friction is your enemy. Run about 200rpm and .005" feed per rev. Comes off like plastic wrap off the roll.pb68slab
Hi Daniel, Great video! My 4" x 23" UHMW roller in sheeter moulder has a tiny 1 inch crack(like windshield crack) do you think I can fill in something to fix it?
The plastic used here is UHMW its the same stuff cutting boards are made of. As for the quick connect coupler are you referring to a coupler for stepper motors or air lines or?
Keeping 5 tenths in UHMW wouldn't be fun on the Tormach. I think doable if you had time and only a few parts needed. Fortunately for me I don't need that kind of tolerance for these parts. These parts are rollers and honestly +-.010 would be totally fine.
hello I am asep from Indonesia, very interesting lathe process for polymer nylon material, and my plan is to know the suitable machining parameters for nylon material combined with chisel geometry. any feedback regarding my plan?Thanks (Terimaksih) Hatur Nuhun
Hi Asep, I would be willing to help in any way I can. There are a a lot of chisel geometries tho. If you could find a chisel close to what your talking about online and post me a link I could probably help more, Are you wanting to do this by hand? If so I think one of the wood turning lathe people maybe would be able to help you more, quite a difference in cnc and hand turning lathes.
@@dnjmachine Thank you for your response, I plan to use a CNC lathe, but I don't know the right parameters for a nylon lathe, mainly the chips are produced so they don't accumulate in the material, so I try to vary the chisel geometry.
@@saoriasep1706 Ok, So my best results are using very sharp inserts with high chip breaks. The polished inserts for aluminum is what we usually use. The best thing I can suggest for chip control is either or both deep DOC and pecking as you turn. The bigger DOC will create thicker and heavier chips that want to fall away from the spindle and pecking will cause the chips to not wrap up as much. I believe I have used as much as .150 DOC on the small Tormach lathe on UHMW. Let me know as you make progress and have any further questions.
I just did a small 30PC run on my desktop machine a EMCO Compact 5 Lathe with the high precision3 jaw chucks O.D. jaws. It was 2.5 diameter and the customer wanted .500 thick x 1.622 dia bore. I quickly learned that HSS SHARP (New) tooling worked best. In fact I used a 2 flute HSS endmill as a boring bar with excellent results. The I.D. was for a press fit bearing which I had no problems holding. UHMW doesn't like heat and you must use SHARP Tooling, the chips can be controlled by interrupted cuts.
In this above video the final O.D. and 2 chamfers could have been done on one operation. To avoid the chips balling up near the spindle use the final pass stating at the headstock and travel towards the tailstock. This way the chip will be pushed off the part & you can save an operation. Programming is easier than you think as well.
Hi Daniel, nice to see some machining, had to look up this material to read the data sheet UHMW plastic, that is some stringy stuff many polys are. Nice box of proudly made parts thank you. Lance & Patrick.
Hey guys thanks, I used to make cotton candy balls in the lathe before with all the chips catching up with this stuff. I believe this is what they make cutting boards from.
Hey Daniel.
Good to see a video from you.
I am sure you must be busy with at least 3 things at the same time at the moment.
Working at your normal job, Workshop No 1 and Workshop No 2.
Hoping to see some more updates on Workshop No 2, soon to be No 1 if that all makes sense, lol.
Thanks for the video.
Peter.
Hey Peter, yeah been busy but things coming together. I will try to post a video this weekend of the shop progress. A lot has been happening, I didn't want to burn everyone out on progress updates.
You did very well
thanks.. im running this material for the for the first time.. holy crap headache. my surface finish looks like a thread... never mind my actual threads.
How difficult would it be to turn a UHMWPE spool 3" OD x 2" wide with a 1" arbor? How would I make a center hole for a piece of shafting with a tolerance of 0.2490-0.2495 I need the spool to turn freely, but with zero slop and super smooth? Would a center hole 0.254" in diameter be enough clearance? Any advice would be greatly appreciated. Thank you
I know this is an old video, but here’s to hoping you can comment back. I’m trying to turn a 3” dia UHMW round bar and make the end of it into a hemisphere. I’d like to make a jig that uses a carbide or HSS metal turning tool. Where I’m going from a 0” diameter at the top of the hemisphere to a 3” dia at the OD of the hemisphere, I’m not sure what RPM to use. Do you have any suggestions?
Just got done a job using this stuff when someone ordered it instead of Delrin because it was cheaper. Ya can't use carbide insert tools. Ya need to go old school. High-speed steel tool bit ground 15deg top and side , and RAZOR sharp. I ground mine on my surface grinder. Stoned mirror smooth. Heat/friction is your enemy. Run about 200rpm and .005" feed per rev. Comes off like plastic wrap off the roll.pb68slab
Can you tell me what is the feed and speed of cut for this material
Hi Daniel,
Great video!
My 4" x 23" UHMW roller in sheeter moulder has a tiny 1 inch crack(like windshield crack) do you think I can fill in something to fix it?
Sorry I don't know much about welding or repairing UHMW. We just cut them down never tired to fix.
hi there, what kind of plastic do you use? can you shar how to make a quick connect coupler?
The plastic used here is UHMW its the same stuff cutting boards are made of. As for the quick connect coupler are you referring to a coupler for stepper motors or air lines or?
Great, now how do i keep a .0005" tolarance for the OD(2.00")? Have around .200"-.250" wall thickness(oblong hole).
Keeping 5 tenths in UHMW wouldn't be fun on the Tormach. I think doable if you had time and only a few parts needed. Fortunately for me I don't need that kind of tolerance for these parts.
These parts are rollers and honestly +-.010 would be totally fine.
hello I am asep from Indonesia, very interesting lathe process for polymer nylon material, and my plan is to know the suitable machining parameters for nylon material combined with chisel geometry. any feedback regarding my plan?Thanks (Terimaksih) Hatur Nuhun
Hi Asep, I would be willing to help in any way I can. There are a a lot of chisel geometries tho. If you could find a chisel close to what your talking about online and post me a link I could probably help more, Are you wanting to do this by hand? If so I think one of the wood turning lathe people maybe would be able to help you more, quite a difference in cnc and hand turning lathes.
@@dnjmachine Thank you for your response, I plan to use a CNC lathe, but I don't know the right parameters for a nylon lathe, mainly the chips are produced so they don't accumulate in the material, so I try to vary the chisel geometry.
@@saoriasep1706 Ok, So my best results are using very sharp inserts with high chip breaks. The polished inserts for aluminum is what we usually use. The best thing I can suggest for chip control is either or both deep DOC and pecking as you turn. The bigger DOC will create thicker and heavier chips that want to fall away from the spindle and pecking will cause the chips to not wrap up as much. I believe I have used as much as .150 DOC on the small Tormach lathe on UHMW. Let me know as you make progress and have any further questions.