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I know some of us are always looking for a new and unusual challenge. I also know that some of us are very good at CAD design and some of us aren't (me :oops: ). We just want to make piles of metal chips. Take a look at this "new" idea for an engine, especially the animated model. Apparently...

My question is: What is the best way to hold (very) small drill bits when drilling? I had been using an old sensitive drill feed device with a miniature Jacobs chuck. It will close down to 0" and hold up to 1/8" bits. It is worn out and has developed way too much wobble (it was a "pre-owned"...

I have been searching the internet for a simple formula to calculate a hole size to use for internal threading of odd sizes with not much luck. As an example: if I were to have a threaded tube that I wanted to make a matching cap for and the tube O.D. was .800", how would I calculate the inside...

I have a need to shorten a couple of round neoprene drive belts for model use. They are 1/8" and 3/16" diameter belt/cord and I'm hoping someone knows of a type of glue that will fasten the ends together and not break loose when stretching them a bit. There is a place to buy almost any size...

Does anyone use Acorn dies in their hobby work? I stumbled across them on Ebay and impulsively bought a couple 5-40 size just because I wanted to try them out. The dies were inexpensive but the holders are a larger investment. There is a company or two still making them but it almost looks like...

I'm looking for some constructive help with an idea. For a couple of different reasons I would like to come up with a design for a servo-type power feed for a lathe compound. I have a Grizzly G4003 12x36 lathe and what I am picturing is a small servo or stepper motor mounted on the top of the...