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Messages - jonny quest

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121
General Mach Discussion / Re: burned a servo
« on: September 12, 2012, 06:05:29 PM »
I'm a doofus with the electrical stuff. This was a turnkey mill, I didnt build it.

coming into control cabinet, I switched parallel cable wires 4/5 (which is the Y axis) with 6/7 (which is troublesome Z axis). Y still works fine, but Z still does the same thing.

So that will rule out the parallel cables, computer, and parallel port.... I think?


122
General Mach Discussion / Re: burned a servo
« on: September 12, 2012, 01:36:32 PM »
I did swap drives all around. It is definitely just a z axis issue, with gecko driver known to be good, and servo known to be good.

When I check voltage on just the z axis servo... at rest I get same power as known good axis. As soon as I jog the bad axis voltage drops to zero for both directions.

The z definitely isn't getting power when jogged

123
General Mach Discussion / Re: burned a servo
« on: September 12, 2012, 01:02:05 PM »
Can you burn out a parallel port card or cable when a servo gets overheated?

What's the trick to measuring the parallel port to see if my z pins are sending out a signal?

124
General Mach Discussion / Re: burned a servo
« on: September 12, 2012, 09:24:02 AM »
Encoder is attached to ballscrew on this machine.

What I did do last night is take a battery charger... 12v 10a unplugged servo from system and hooked charger directly to servo... it barely lifted z, and easily dropped z. So servo is working correctly. It a brushed dc servo.

Problem is in machines power supply to z servo I think.

125
General Mach Discussion / burned a servo
« on: September 11, 2012, 10:26:15 PM »
i goofed... burned a z axis servo. moved machine and left gibs tight from when i lifted it, and started to re-tram Z from move. Axis moved just fine... but little servo got real hot until I realised what I did.

it's a industrial hobbies (RF45 style) mill. It has Gecko 320 drivers,Mach3, and servos.

After i realized what I did, shut off machine to allow servo to cool (it was still working fine) when I restarted it Z no longer worked.

I replaced servo, and new one faults when limit on Gecko is anywhere over 30%. Gain and damp have no effect at all.

I swapped driver from a working axis... and Z acts bad still.

I replaced encoder, still doesn't work. Did I burn out a prarallel cable or parallel card? I'm stumped and need to get this running again, any suggestions greatly appreciated!

Mach3's DRO does show movement, but no movement from servo

126
General Mach Discussion / Re: Preference in game controllers
« on: June 19, 2012, 10:28:12 AM »
The Vista CNC works great, not to expensive.

127
General Mach Discussion / Re: Z axis plunges when starting?
« on: June 02, 2012, 09:50:30 AM »
Click edit gcode. A notebook window will open, just copy and paste that info.

128
General Mach Discussion / Re: Z axis plunges when starting?
« on: June 02, 2012, 09:22:29 AM »
Show the first 10 lines of gcode

129
General Mach Discussion / Re: Positioning of CNC machine
« on: May 30, 2012, 04:38:52 PM »
No worries, we're both about equal!

130
General Mach Discussion / Re: Positioning of CNC machine
« on: May 30, 2012, 12:20:26 PM »
Click ref all home

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