Compressor motor turning on and off is cutting out my cnc spindle

[Doddy]

What's the supply voltage on that PSU?, if 24V then you're cooking (that's the supply voltage to an AXBB-E). You'd have to re-spin the cable assemblies to the stepper drivers (the green/blue/purple/brown cables) - cut the ends off where they connect to the USB BoB, and re-terminate into your assigned Step/Dir signals from the AXBB-E. There's a 4/5 pin connector next to the stepper motor connectors which I expect carries the limit/home switches - they'd have to be re-terminated into the AXBB-E inputs, and you'd need to examine the E-Stop wiring to work out if it's acting as you want it to act (you don't particularly want to switch off the AXBB-E every time you E-Stop), but it's not a particularly difficult conversion.

For me, I'd start with the AXBB-E outside the box, slave power to it and transfer one stepper driver to one pair of outputs, commission that, rinse-and-repeat. Once you're happy then install into the enclosure and make good.

All do-able... if you want to throw the cost of an AXBB-E and UCCNC license at it.

[paul4523]

What's the supply voltage on that PSU?, if 24V then you're cooking (that's the supply voltage to an AXBB-E). You'd have to re-spin the cable assemblies to the stepper drivers (the green/blue/purple/brown cables) - cut the ends off where they connect to the USB BoB, and re-terminate into your assigned Step/Dir signals from the AXBB-E. There's a 4/5 pin connector next to the stepper motor connectors which I expect carries the limit/home switches - they'd have to be re-terminated into the AXBB-E inputs, and you'd need to examine the E-Stop wiring to work out if it's acting as you want it to act (you don't particularly want to switch off the AXBB-E every time you E-Stop), but it's not a particularly difficult conversion.

For me, I'd start with the AXBB-E outside the box, slave power to it and transfer one stepper driver to one pair of outputs, commission that, rinse-and-repeat. Once you're happy then install into the enclosure and make good.

All do-able... if you want to throw the cost of an AXBB-E and UCCNC license at it.

Its a 40V PSU

Doesnt sound easy, especially with no electronics background (currently trying to google what 'respinning cables' means), i guess this is why ive been put off in the past from upgrading. Seems like its a good few days of tinkering around which I don't have spare at the moment

[Doddy]

Its a 40V PSU

Doesnt sound easy, especially with no electronics background (currently trying to google what 'respinning cables' means), i guess this is why ive been put off in the past from upgrading. Seems like its a good few days of tinkering around which I don't have spare at the moment

Keep it in mind. We're here to help if you decide to pursue this.

[paul4523]

Keep it in mind. We're here to help if you decide to pursue this.

Thanks, i have a feeling i'll be bugging you all LOTS to get this solved :)

Would I need a new power supply if i switched to the AXBB or will 40V work?

[Doddy]

Thanks, i have a feeling i'll be bugging you all LOTS to get this solved :)

Would I need a new power supply if i switched to the AXBB or will 40V work?

You'd keep the 40V for the stepper drivers. If necessary you could slave a very small 24V supply in there, or a DC-DC convertor to derive a 24V from the 40V. If you pursue this conversion I would at that time ask for more photos - I'm somewhat surprised that the control card takes in 40V - that's unusually high so it could be that there is another supply derived elsewhere (or otherwise regulated on the control card).

EDIT: Omio's website shows the USB control card, at a V2.2 - the V2.1 I can trace to a Canadian supplier and looks identical except for the 2.2 including screw-terminals (2.1 was wire-board connectors), BUT, it did specify a 12-24V supply for the controller, which makes me more convinced than ever that there is a 12-24V supply sourced within the control box - that should be sufficient for the AXBB-E.

[JAZZCNC]

Thanks, i have a feeling i'll be bugging you all LOTS to get this solved :)

Would I need a new power supply if i switched to the AXBB or will 40V work?

The AXBB-E needs 5v and 24Vdc PSU's. The 5V is for the Step/Dir outputs and the 24Vdc is for the Input/outputs. ie Limits, E-stop etc.
The 40vdc you have already is just for the Stepper drives.