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If you are going to buy one or two look for “dog point set screws” I have a box of them from other projects. Dick -- http://www.homemadetools.net/ forum/ OFF- SET-tailstock-center-65965#post105972

Screws that are missing several threads and cut square at the end of the screw are “dog screws”. Jerry F. Sent: Wednesday, August 30, 2023 1:52 AM To: [email protected]; Sjkochan@...;

Thanks for the fascinating discussion. If I may, what would be the advice for the grub screws that are found on the Unimats? Which form should these have? So far, I believe mine (for drilling head and

Yes the typical smaller screws are cold formed. The end of the screw shows what happens when a formed thread is not supported. Those smaller screws are squished between 2 plates with slanted grooves.

Also, the reason set (grub) screws have many end varieties is because that is a "working" portion of the design. On typical bolts and applicatiin, the primary "working" portion of the design is the

If you look carefully, many bolts are not actually flat on the end.? At times I have had to machine the end of a screw flat to not have marring.

Hello Peter: You are right, bolts usually only have the straight end, but there are self-tapping ends. But the Point is the "working" end of a set screw, and each Point has a special purpose. Flat and

I was thinking of writing an answer but just did a copy/paste from Wikipedia instead. Also, many bolts do have different end shapes. "Set screws appear with a variety of tip (point) types. The

I have a dumb question - why are there flat, cup and cone termination varieties of grub screw, when bolts only (as far as I’m aware) come in one style? I’m guessing they have a specific purpose…

Hello Jeffrey, I agree every one of us has only a limited amount of time and non of us knows how much time that is so we make the most it while we are still able. Dick -- http://www.homemadetools.net/

I'm pretty sure all the information, but with detailed drawings and part numbers of many more parts, is available in the files section where there are Unimat manuals for the DB/SL and the U3. Not sure

Hello, John Yes, I have lifetime supply of belt making materials and years ago happened upon a package of ten DB-200 headstock bearings at an auction. Also picked up a box of used spindles. Dick --

This is like most hobbies where people have a range of interests and points of view.? None are inherently wrong.? One person's view may be different from that of another, but that does not negate

What sort of stuff should we be making? Bearings? Drive belts? I grind my own hss, but i’m not making any end mills or drill bits. Best Regards John

Yes, we probably should be making our own parts for our own machines,?although not all Unimat owners are willing to expend their time on making their own?parts for their machines. I for one enjoy

I have reached an age where time is not unlimited. Therefore I prefer to use my time for making things other than more lathe accessories. YouTube often shows me ways of machining something w/o giving

This idea of making your own parts is too difficult and time consuming.? I have lathes, etc., to make things for my hobby, model trains.? My hobby is not to be supporting the Unimat.? Many Unimats

Shouldn't you all be making your own parts by now ?

Ebay: Yes Stock up: Yes, yrs ago.

So we identify who/what no longer exists for Unimat supplies.? Now what is the conclusion?? There is nowhere to buy anything?? Do Unimat owners buy everything on Ebay only?? Does this mean that