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The basics of the lines above are:
The first word in a line is a command
The second word for a "net" command is a net signal name
Subsequent words for a "net" are HALpin names that need to be...

The Tormach spindle configuration is pretty complex and tailored to their particular control board. The control board is shown in the manual :...

Thinking mostly out loud. I use the terms hard firm and soft for different kinds of limits. Hard limit = metal to metal contact or similar. Firm limit = contact with an axis switch or sensor that...

If you say the spindle position is stiff, I'll gladly accept that and drop the 'ish'. The rest I think I have already agreed to except I don't do Mach and didn't know this is was a Mach3-wide thing....

I'm not trying to be argumentative, but I'd like to clarify that my statements on motor theory are not based on something I read on wikipedia a couple of days ago. I used wikipedia because I agree...

I don't mind a good natured debate and I try to frame my comments as guesses to politely leave the option open that I may be wrong or I may lack some information, rather that impolitely saying "I am...

Brushless AC and DC motors are very similar. The basic difference is in the shape of the constant torque signal. AC brushless motors are designed to be driven with AC sine waves. DC brushless motors...

Just to keep things straight...

Servo spindles and rigid tapping have nothing to do with each other. Rigid tapping can be done with nearly any spindle motor type. On common CNC machines, the main...

LeeWay,

I happened to find these links for 3/8-16 tap and stainless steel:
Tapping 304 stainless steel - Industrial Forum - eMastercam.com...

My guess is that you won't find information on using a servo motor on a mill or lathe spindle because there is not much call for it. I have heard of using a brushless servo motor on a spindle, but in...

A system of rigid tapping has been a fairly well established part of LinuxCNC for quite a while. Of course, LinuxCNC may or may not have a bearing on this discussion -- I couldn't say.

The...

"AIR, the controller does support CSS."

CSS should be available on the lathe using G96.

There should be ways to check your tapping routine before cutting parts. I haven't tried it yet but one suggestion is to clamp a stiff wire in your vice and bend it so the tip points to the side of...

Oops, in looking at the manual it does indicate a line driver or open collector option. My schematic shows open collector. I don't see any indication of which option is installed. I guess the number...

One way to do this is to boot a PC with LinuxCNC and set up a printer port input as a counter and count pulses for one turn. This would not be exact since it is hard to turn the shaft exactly one...

This thread reminds me of this video I saw a year or two ago:
CNC Coolant Systems

I seem to recall a version that uses alcohol and after the part was done both the part and workspace were...

Personally, I don't use Windows and I know Linux and LinuxCNC fairly well. Generally, it's a hard sell for anyone that doesn't use Linux, but some points come to mind;
I can freely load and update...

If I had those motors on my shelf I would use LinuxCNC, a Mesa 5i25 and some Pico PWM amps, but that may not be at all appropriate for others and a bit off topic.
LinuxCNC.org
5I25 Superport FPGA...

I would tend to go with a digital probe:
32309 - Passive Probe w/ 10mm TTS Mount

so that you can integrate your probing with the machine software to automate your probing tasks. Although, I also...

(Just thinking out loud)

It seems, from my brief reading of this thread, that the original problem was solved by upgrading (or downgrading) the machine software. But, from my limited experience,...

Mine (on a 770) was and is still is wonky from new. Sometimes with many quick strokes I can get the plunger to grab a bit of oil which gradually gets pushed up through the lines. I suspect it would...

I forgot to mention that I tend to use the short split point screw machine drill bits with the mill. Drill Set, 115 Piece Screw Machine Length HSS 2827 - LittleMachineShop.com I haven't found an...

Off hand, from my limited experience, for milling enclosure openings a .25" HSS 2-flute sounds fine, but I would tend to use 2000 RPM. Some cast or extruded aluminum materials can be gummy, so...

Giving this more thought, I may have been a bit hasty with my original comment. I am more of a machine integrator than a machinist and the integrator says, if the machine has an accurate home then...

Thank you for the link Don. That looks like a good idea, although the slides I got match the original caliper covers or crystal or whatever at 1mm(?) thickness.

From my experience in grinding a...

Taking AC readings on a DC supply gives you an indication of the AC component of the DC. If a diode in the rectifier section of your power supply is shorted or open, it will show up in your AC...

In my opinion, glass is sand, so is likely to be bad for your machine. Grinding machines have extra attention paid to protecting the ways. Theoretically, taking extra precautions should be enough.
...

I can't keep up with the daily maintenance that water based fluids require, and I absolutely hate rust on my machines, so I use neat oil fluids or go dry. If I had regular production and could hire...

As for testing, I use the screen plot and simulator to cut electrons, or cut air on the machine, or I make machinable wax from left over candles (4 to...) and #2 ice cream buckets (... 1 by weight)....

Thread milling a thread is just like cutting an arc with a Z parameter added.

Cuts arc:
G0 X 0.000 Y 1.0000
G0 Z 0.0000
G2 X 1.0000 Y 0.0000 I 0.0000 J -1.0000
261434

Cuts one circle:
G0 X...