Thread: Trying to get this thing to work
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19-01-2020 #21
I miss the part where the controller is removed - though recognise that OP replaced the original software ("program"). But, these type of questions that the OP have raised are best answered from a single non-conflicting source, and no-one here doubts that you're best placed to support that. I'll back out of this thread.
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19-01-2020 #22
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20-01-2020 #23
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20-01-2020 #24
2-pin spindle connection on the back goes to a JST on the PCB located low down, between the fan and the toroidal. That PCB also has the parallel port and USB port on it, so I'd suggest its just a case of identifying that PCB and finding a manual to determine the pins.
GeneO, can you see any markings on the board in the middle of your first photo? The one that sits right behind the fan. I'm looking for a model name, number, manufacturer. Something like that. There seems to be some writing above the handwritten label on it, but its hard to make out from the photos.
Looks to me like a low power DC spindle, so the exact RPM is going to be a bit subjective.
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20-01-2020 #25
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20-01-2020 #26
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20-01-2020 #27
The JP382C is the CNC control board. The two boards stacked together are the 4th axis and Spindle board. Top one JP1635A is 4th axis the lower JP1482 is the Spindle/Power board.
This board rectifies the AC power from the transformer for the drives, The fans, and the Spindle. As well as doing the PWM for the spindle and from what I can tell the Spindle is 54Vdc. The Drives are 27Vdc, which fits with the TB based drive Chips. Here is a link to schematic for the Spindle board.
https://hackaday.io/project/6776-304...ller-schematic
Unfortunately, I haven't yet tracked down the pins you need but I will bear with us.
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21-01-2020 #28
I can now jog the 3 axis, but the spindle shows no sign of turning. I know it's good because the rudimentary program that came with this machine worked, and the spindle turned. It not running started when I bought mach3. Also, I'm an American and use inches for measure. The only thing I see about changing it to in. is in the config and tells me not to change it. Do you know?
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21-01-2020 #29
The warning isn't saying don't change it, in fact, it's the only way you can change it. What it's saying is that if you do change then you need to change the Steps Per setting and Motor tuning to match.
So if set for Metric then the Steps per setting in Motor tuning will need to be multiplied by 25.4 so it moves the correct distance. You may also need to play around with the velocity and acceleration settings if doesn't run quite the same.
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21-01-2020 #30
Thanks for the tip. I'll get it running sooner or later.
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