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Alternatively , you could make a D bit milling cutter. Not a lot of work

I would suggest an adjustable boring head. Of course it is possible to use an independent chuck or a 3 jaw one. Old fashioned - and...

Just placed an order with Debolt for two 1" rings. Rings are $10 each and shipping is $20 so $40 American---which is $52 Canadian. Ouch...

Making some progress......on small clearance issue

It's a trick you need to be careful with - it not only drills bigger but continues to drill bigger and bigger the deeper you go. Years...

When I preview the post everything shows up fine on my computer, I don't know about yours. Just in case I screwed up again, I'm going...

You may also want to try this guy -- he caters to people keeping model airplane engines alive, but he says he makes stock and custom...

Hi guys.... maybe you should try a Tesla turbine... K2

That trick is supposed to work well on the harder bronzes which can be a bear to drill. Fortunately making a drill bit cut bigger is one...

After a bit of sleuthing I have found the following. Two different companies. Debolt is out of Zanesville, Ohio. Ringspacers is out of...

Thanks for joining me in an introduction to my new engine, Longboy's "SQUARE FOUR" Model Gas Engine! Only found in the motorcycling...

dsage--I may have been mistaken on that. Debolt has a nice new web page with good information and pricelist. Ringspacers has an old web...

Hi mark i think there a little confusion with the replys here. A lot of info there thanks, but i just have no time for starting new...

Right - I said I'd get it running over the weekend and I did :- The static photo shows it in the foreground my prior geared hypocycloid...

Next i made the steam nozzle. First turned and thread m6 and a small center drill makes a nice nozzle opening. After parting off and...