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Then it might be in yours belts or pulleys. Sometimes a loose set screw can be enough to be a monkey wrench.

If you can move your Y pulley, the one on the shaft NOT the motor visibly, and see no...

Well to cover the basic Horses before looking for Zebras...
I apologize I haven't read the whole thread just the last 2-3 pages, so if I'm redundant please forgive me

1) What software did you...

Wired wrong or an incredibly huge amount of induction occuring

Belts are more often than not always a better option. They have a tendency to reduce vibration and fix micrometer sized shaft offsets. I wouldn't go any other way, even with stock screws.

I like the use of copper pipes much better then these other loose tubing setups. Congrats.

Lock the column in place with EG? I wouldn't recommend it.
Instead I'd recommend disasembling the mill, and EG'ing the base and column seperate. This will let you modify later as needed. Things like...

For someone trying to rap there head around this.. I understand that the system pulls up on the collet to tighten onto the tool; but on the mills I've worked with without a drawbar they require...

Wait, if your a last year shouldn't you be able to do that..?
Alot of this kind of work will be via example. Find info on a given bearing, then compare it to other types. Needle, tapered, etc.

^^
You are correct. For all three motors to run at max that would be the case. But max speed is not the max, but the holding power. Rarely is this called upon and more often then not I believe the...

And let us know if the 3 bolt mod is already done or not :)

His computer is certainly compatible, sorry to be late to the party.
W7 just has this error, its well known. The other option can be faulty memory. A program like memtest is actually the first thing...

Well it's been sitting unused for a while now.
Finally got around to having the cash and time to get a proper vice, and collets, etc. So still not much use except some drilling ( :( ) Being a med...

Sounds like you have a heck of a project.
I have an X2 which I recently got going, but still haven't ripped it down. Seeing all that makes me afraid to actually take it all apart and find how off it...

Check contact? Or mounting pressure?

When it works and then it doesn't, more often then not its heat. Or its burning out internally as load increases beyond its broken-ability.

Indeed, are they hot to the touch? Do they have any airflow?
If not, the wires can also be under tension or moved as the Mill moves and that could be re-loosening. I would have thought it was...

Sounds like a bad wire connection or a bad hardware item if it changed to other after swapping.
The fact that it moved by swapping wires, then went away for a bit, implies a loose something.

Why not just use a .0625" copper shim?

What a shame, it gave me quite a laugh.
Good luck!

Double drag up blast from the past, I apologize in advance.

This belt mod originally used two pulleys, one is then bored out to fit the spindle, the other needed to be shimmed. I found two...

Wow. Nicely done.
Won't this add a significant delay to heating the entire bed though as well as add alot of heat into the aluminum and thus the bedding/bearings/system itself?

No more massive pulley?

Hey Hoss,
Will you be gearing up to sell kits at some point? You have me mighty interested.

Sounds almost like an unpacked race or trapped ball inside the bearing... That's not good obviously.

Sounds fine but a parting tool is quite thin. Is that suitable to grab with the vice?

So R8 tapered 3 jaw on the way.
Next step.

Best way to hold a part off/cut off tool and other standard shapers?

By my understanding...

A 2 flute has two cutters, so effectively per spin each blade has to do a bit more work at the same pass speed. Why would that be better with something gummy?

And how many flutes would you recommend for copper?
90% of my cutting work will be in copper.
10% in delrin/acetal and plastics.

I'm not experienced enough to comment I'd say;
He came over to inspect the X2 I received, he's used to working on much larger Bridgeports at his work and home, and that was just his general comment....

None taken, he is not an engineer.
I believe the idea was more that there would be a more gradual slowing or unload-to-load change as the bit encountered material on large cuts.