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... well... I think I've narrowed it down to a connection to the circuit board around the terminals.

The motor started up and ran for 30 seconds or so and then the drive faulted. I reset it......

I have one G320 that immediately starts running as soon as the dc voltage is applied... it doesn't wait for the reset. Does this mean that G320 is toasted?

I'm just re-starting after a...

I'm completely unfamiliar with your particular machine, and certainly unqualified to offer any REAL advise, but I'd guess that you have a 10tpi screw on your z axis? If so, possibly look to an...

sorry for disappearing... here is what I currently have monitoring my servos. in an unrelated project, I learned that 555 timer IC's make good relay drivers. attachments opto1 and opto2 show what I...

Some folks on this board helped me work up an op-amp circuit so I could tie my err signals into my control. If this is something you are interested in, I can look for the old sketches.

I saw Floyd in DC back in... oh crap... I'm old. Great gig in the sky still gives me goosebumps. Probably the highlight of the show.

Are you sure it's way lube and not hydraulic oil from the power drawbar? I don't know your specific machine. If it is hydraulic oil, STOP! Re-grease your spindle or have it done by folks that do...

Look up "scotch yoke" or the drive mechanism used on shapers. The second one will allow you to have different speeds for your "application" stroke and the "return" stroke.

Cool. I'm getting ready to do my first thread milling...maybe this weekend.

Very nice! Did you work from an existing design, or did you design all the workings yourself?

Nice work and clever strategies. I'd say if you are using the live center, don't use the lock-down screw. That may actually be working against you. Other than that, I'd try soldering the piece...

SOMETIMES the 3ph input DC servo controlers can be run single phase. There is some derating of the power output, but that may be worth investigating.

What's up with the aussies beatin' on eachother?

Not just internal threads. External threads too. Practice with a single point fly cutter setup before using the super-expensive thread mills.

Who is john galt?

Good idea, but I think it would make sense to make both parts of the rack the same thickness. The loading would be the same on each half. The spring needs to be stronger than...

You need to help us out a little more with your problem. Drilling? Boring? Lathe? Plasma Table? Shooting it with a .45?

If it is the latter, you are getting what is called keyholing because the...

What kind of switches are they? Are these 2-wire mechanical switches or a prox switch of some sort?

Once you cycle power a few times and they start working, do they stay working? i.e. is it the...

I don't know the legal answer, but as long as we are waxing philisophical I'd ask if the company is defunct, then who would register a complaint? It's kind of a tree falling in a forest scenario.

Awesome! You are officially hooked. More pics! Make a video.

Learning solidworks and other cad programs is a good idea.

That's a real shame that the school won't let kids cross-train. I know a lot of lousy engineers that would have benefitted from some...

Not meant as an insult. I see China playing their cards right, and this country doing everything it can to make itself weaker. When our value drops low enough, we'll just be a soft, soggy food...

Are you retiring? Going to work for someone else? Going into a completely different job? If you haven't been in the business so long that you now hate it, set up a basement shop and do it as a...

请不要吃我！我知道如何修理东西。
:D

That's pretty much it. Feed it one step command, and it'll send voltage to your motor until it gets one encoder pulse back... at least that's the simple version. So if you want your motor to turn...

http://s3i.dotphoto.com/i1C0CAC49-5ED6-490D-A3A6-092FCBC34866.jpg

Schematic

Well, I've got it working!

On a side note, I moved to 5V instead of 8v. I changed a few resistors and applied the learnings from Mr. Irving. I did this because I have a handful of 5v relays that...

I haven't seen that one. Make a copy of your .xml and .set files and keep them in a safe place... if you don't already do that.

You may want to try to reinstall mach.

I'd be concerned about buying anything with a name so close to Exlax.

Other than that, I know my plan is to learn enough Chinese to say "Please don't eat me! I know how to fix stuff." Or...

Cool!

I've just gotten my baggies of resistors and IC's, so I'm ready to start making smoke! I'll be sure to post some updates.

HA! You nudged me just enough. My mistake was at the voltage around the 1k resistor. So, the voltage at the 10k resistor and thus the +input of the op amp will be either 1 or 3 volts depending on...