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I suspect that the reason they didn't implement rigid tapping is a combination of software and hardware shortcommings. The motor has very little torque at the low speeds that you need to run for...

I purchased a used on a few years ago. They come up every once in a while. If you are in a hurry, just buy a new one. If you can wait months to years, you can get a good deal on a used one. I see...

i wonder if some of the features will be able to be retrofitted onto the older meachines, ala the series III upgrade. I would be interested in some of the freatures, but I definitely don't want to...

Speed is not completely unimportant for a CNC lathe. The coarsest thread that you can machine is a funciton of how slow you can turn the spindle (with enough torque left to make a cut) and how fast...

This is an interesting thread. While I’m not interested in building a CNC Router right now, it has piqued my engineer’s curiosity. What I think is needed is a clear set of judging criteria. So...

If you are using a wood cutting bandsaw the blade speed is way to fast for steel, even with a good bi metal blade. For mild steel you want a blade speed of around 200 fpm. The ideal speed for...

I bought mine used and it already had some machine work done to the table. Actualy a hole about 1" diameter and a curved slot about 2" long machined about 1/16" deep in the table. So far no divots...

They normally drill the bores for medium caliber guns, those range from 20-40mm with lengths from about 4 ft up to maybe 8 ft (generaly the larger bore barrels are also longer, so L/D remains in a...

I have been considering converting a lathe of mine to CNC. I had originaly intended to convert it to ballscrews, but leaving the original Acme leadscrews would greatly simplify the installation. ...

I think looking at a Planer-mill design might be worthwhile. The double sided fixed gantry would provide a higher stiffness to weight ratio than an open sided design. I don't know what the...

I'm interested in what your plan is for the cross slide. There's not much room in there for a ballscrew. I Have a 12" Craftsman very simmilar to this one that I had once thought about CNCing.

When you say speed is not important for the metal cutting aspects, I think a few calculations are in order. I assume that you would be looking to machine aluminum and soft brass that would machine...

Sounds like you have alignement under control. Looking forward to seeing your progress. Another thing I thought of after the last post was Turcite. That's a brand name of a polymer way material...

How much backlash is too much on a plasma table? I thought the inherent accuracy of the cutting process would hide some. When does it become noticeable in say, cutting out a circle? One thought I...

Generally steel on steel sliding surfaces are usually avoided, due to galling and "stiction" issues, even when well lubricated. I had some thoughts about using silicone bronze mig wire or bronze...

Having just read this thread, I would like to add something. There were several comments about using a weight to offset the weight of the milling head on the z axis. While this is fine for...

The only problem I see with the mini lathe spindle is the same problem that comes with all X1, X2, X3 mills as well, and that is not fast enough spindle speed. You said the gears were stripped, so...

I bought a used 1100 last year, also in CA, paid about 9k for it, but it was loaded. If I had had to buy what it came with new, I would have been looking at close to 15k. 4th axis, stand, vise,...

The assumption is not neccecarily valid. Mass conserves, volume does not. If the water molecules fit in between the other molecules there would be no exansion. The easy way to solve any volume...