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Anyone?? Is there a better forum for my questions on this topic?

What are other people using when they convert the Taig mill to a variable speed DC motor? I don't want stepped pulleys, just a single ratio, probably 1:1.5 step-up for a somewhat higher spindle...

Just wanted to add something to all this. I was thinking about the MC-60 "black box" sold on eBay, as well as the work you're doing with these. I hope everyone is aware of the legal liability...

OK, here are scans of the sheet and shots of the controller. Wire color codes are listed on the voltage diagram. Let me know if you need anything else.

341620

341622

341624

341626

No problem, I'll do that over the weekend. Should I post them here, or do you want a PM or email?

Sorry, I forgot to mention it, the sheet only has a block diagram of the treadmill wiring. The control board is shown as an empty square with connector designators. I don't think that's what you...

Mike, my testing of this motor is limited to no-load spinning on the workbench. I don't have a mounting plate, pulleys or belt yet to use it on the mill. Nevertheless, I've been able to perform a...

Sorry, don't mean to bogart this thread. I was looking at an old ad for a router speed control this evening, and it listed the following feature:

"Electronic feed-back maintains speed by...

You're right, I wasn't thinking about the direction change. Even with a slip-on pulley, I think I'd want two nuts locked together. Or maybe machine the pulley with a neck that could be pinned to the...

Well, that was easy! I clamped the rear of the shaft in a bench vise and turned the flywheel off by hand. The motor is running CCW on my work bench right now with a 12V supply, lots of torque and...

Are you sure they were this model? It's a N1CPM-138T. I'm asking because it makes clicking noises if I turn it CCW by hand. CW is quiet. I'm thinking I should eBay it and look for something else. ...

One of my neighbors threw out their Proform treadmill, so I dragged it home. The controller is a MC1200-12. Just now pulled the motor, and the label reads as follows:

Permanent Magnet DC Motor
...

The difference between steppers and servos isn't accuracy, per se. As long as a stepper motor is operating correctly and doesn't encounter an obstruction, it performs just as well as a servo....

We're not communicating. Didn't you say that after you replaced the thin wires (which were running hot), the controller ran hot instead?

Originally Posted by Jeff-Birt:



Didn't you say that your controller ran hotter after you switched to larger cables? That would be the opposite of the effect Jeff is describing. I'm just...

Jeff, I'm not sure that's correct. First, the power dissipation (heat) you're calculating occurs in the wire, not the controller. As for the controller itself, if it were linear, it might actually...

The controller gets pretty hot without a fan, but presumably, it's not enough to fail if ambient is less than 40C. Unfortunately, Gecko's white paper (linked in a post above) concludes with the...

In case you haven't seen them, you can buy little 12V 1Amp switching supplies on eBay for less than $8, including shipping, from a NYC seller. They're in a small perf-metal case and can be mounted...

You're cutting much faster than I am. I run the mill on the third step (about 4.5K RPM I think) and have been setting it to 0.8 IPM. Wow, I could really get this work done faster at 8 IPM. Some of...

Jeff, which specific cutter is it? What spindle speed do you use with it?

I'm using that same cutter, Dremel model 9909, and it produces excellent fine lettering on aluminum panels. The only caveat is that the engraving has to be done well before finishing the piece...

156F isn't really hot. Most electronics is routinely rated to at least 85C (185F). That aside, the G540 can be cooled considerably with just a small amount of air directed across its rear panel. I...

Thanks for posting this idea. It hadn't occured to me to attach panels to a sacrificial piece of wood. I sometimes engrave my panels, usually no more than about .006" deep, and maintaining that depth...

I work with panels too, usually between .062" and 0.5". In fact, cutting complex holes in panels is the primary reason I bought a CNC mill. When I first set everything up, I built a clamp like the...

What??? I use inexpensive 1/4" carbide cutters on my Taig with excellent results. They cut easily and cleanly, and so far haven't needed resharpening (I machine 6061 almost excelusively).

No, you're only removing the resistance of the small-gauge wire they sent you from the system. I don't know who you bought the system from, but I'll bet they don't directly warranty the controller...

I bought the lathe first so I could do turnings. It came with a brand new milling attachment, but due to the limited work envelope, I've never used it. In your situation, considering the work you've...

Caswell Plating used to sell a "sput welder" for this purpose. From what I've read, it could be used to spot-weld a thin lead wire to the part for anodizing. Unfortunately, it's no longer available....

Onhy had my Taigs for a short while, but so far, ATF is working well.

Thanks Jeff, I have sent the file to the licensing folks.

Edit: Scott at ArtSoft has informed me that the file I'm using is a known pirated version. He didn't say so, but I'm assuming later...