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Author Topic: mach3 5 axis breakout board  (Read 499 times)
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sfiga69
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« on: February 29, 2020, 09:01:45 21:01 »

does anyone have schematics for this breakout board?

Thanks
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pickit2
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« Reply #1 on: February 29, 2020, 09:47:01 21:47 »

Wiring only
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sfiga69
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« Reply #2 on: March 01, 2020, 10:15:17 10:15 »

thanks pickit2 that's easy to find.
my problem with this card is that the enable pins don't match.
I expect the enable (P14) connection on the blocks to match the enable pin on the 5 JX connectors.
surprise ... the pin enable on JX of the X-Y axis are interconnected and be lost, the pin enable Z-A-B are interconnected and are lost. The two blocks are not connected to the enable (P14).
If I follow the tracks, they get lost under 74hc245 and I don't find any connection with EN.
The CK and CW connections on the JX correspond on the blocks.
I need the schematic to find out if it's a CS problem.

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« Reply #3 on: March 01, 2020, 11:05:51 11:05 »

I think your problem is the Enable output pins on the 0.1 headers are independent,
but the screw connectors they are common.  
I would think they are routed via the 74hc245. I think your tracing is off as they are tri-state output devices.
« Last Edit: March 01, 2020, 11:15:57 11:15 by pickit2 » Logged

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sfiga69
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« Reply #4 on: March 01, 2020, 07:39:15 19:39 »

You are right.
pin 6 of the 245 A-B Axis
pin 7 of the 245 Z-A-B axis
pin 8 of 245 P14
pins 14-13-12 of 245 to pin 14 of the parallel port
have separated the enable
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