Bruce, where do you buy delrin 1/4 inch stock?
Not me. I use cast iron. A good well seasoned pan won't stick. But it's also a matter of how hot you need to get it before you put anything in it.Teflon scares me, supposedly in near everyone's bloodstream due to no stick pans.
I use this stuff for bushings in wooden clocks and all sorts of things. Don't recall ever using for hammer tips but it should last forever. The only problem with the AF (anti friction) version is that the Teflon tends to prevent glue from sticking well. McMaster-Carr also lists it as "slippery Delrin".McMaster-Carr.... but it does look like there are cheaper solutions.
btw... you want delrinAF, which has some teflon in it. you can use it for bushings, pinion gears, all kinds of stuff. lathes eat it for breakfast snacks... incredibly easy and quick to work with.
i got a 2' piece at McMaster-Carr for $3... + twice that in shipping (doh!)
About the only safety issue with Delrin is that a small amount of supposedly somewhat toxic gas is released during some machining operations. Probably insignificant when machining clock size parts but good ventilation is always nice in the shop.Teflon scares me, supposedly in near everyone's bloodstream due to no stick pans.
Yeah, a bit too much info there... If you're worried about the PTFE in Delrin, how do you deal with the fact that most brass has lead in it to increase machineability? Delrin and brass both machine beautifully and are wonderful to work with. Maybe NAWCC should hold a seminar - "Good Hygiene for the Average Clock Butcher"...i can't quite hit the 'like' button on that last post....
That's funny - I did a google search just for grins and it returned over 7,000,000 hits. If that doesn't work for you, try "acetal" or "polyoxymethylene."Can't find DELRIN anywhere
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I think there might be a law agin that. Might depend on your state though. Ha
For a hammer head, regular ole (available everywhere) Nylon 6+6 would probably function the same as Derlin.
Ummm... alrighty then. He's the late husband of the state champion accordion player. hum.My late brother in law, a superb guitarist, used to say "I love the way an accordion sounds when it lands on a banjo in the garbage bin." I guess he was not too fond of either, even though his wife was a state champion accordion player at one time
A good way to break up the stringy chip when turning a large amount of Delrin is to first plunge grooves in the OD. Then when turning the chip will break as your turning tool passes thru the groove.I found a plastics fabricator nearby that will give me scrap Delrin almost free. However, he normally deals with rods that are 1 1/2" dia, so I have a lot of material to remove to make a small part. While it cuts super easy, it's stringy and has a tendency to birds-nest around the part. After fighting this for a while I came up with using a small shop vac to suck up the long stringy chip while it is coming off the cutting tool. Makes machining Delrin a lot more pleasant.