My Cheapo Chineese 3020t mini CNC Build (more like improvements) leanring all the way

[ravihotwok]

They say motor - &+ so I think I wired these up wrong, think these are supposed to go to the actual spindle?

[AlexDoran]

They say motor - &+ so I think I wired these up wrong, think these are supposed to go to the actual spindle?

Yes those are supposed to go the spindle, no biggy just swap them to the correct terminals on the PCB.

Do you know what the draw is of the spindle? I would advise against running that new PSU for the spindle through that On / Off switch, i would just power the Spindle PSU direct from the IEC / Kettle Plug, if you want to be able to turn it on & off away from using the wall plug, then get one of those additional IEC / Kettle Plug mounts from ebay like i linked.

You need to wire that PCB to the Spindle PSU, just take 'Power -' on the PCB to a 'V-' terminal on the PSU and the same for 'Power +' to 'V+'.

That should be all you need to do in terms of power.

Cheers

Alex

[ravihotwok]

Hello Alex mate,

here is some info for the spindle:
Brushless Spindle DC Motor:

Working Voltage: 48V DC
Rotation Speed: 12000r/min max
Power: 400W
Torque: 230mN.m
Insulation Resistance: >2Megohm
Dielectric Strength: 400V
Diameter: 52mm
Axis Collet Length: 48mm
Diameter of Axis Collect Holder: 16mm
ER11 Collect: 3.175mm

Power supply (enough power for motor):

Input: AC220V ±10%, 50Hz
Output: DC48V, 10A
Power: 480W

[ravihotwok]

Am i on the right track at last?

[AlexDoran]

Yeah based on the info you gave there i probably would not wire that PSU through those small wires & switch.

Yeah your drawing looks good that is how it should be wired.

Cheers

Alex

[ravihotwok]

Thanks very much mate, I bet everyone is banging there heads against their screens with my lack of knowledge lol

[AlexDoran]

Not at all mate, the thing is with electronics, is if you just guess and turn it all on you quickly realise that all you have to show for your work is a bit of smoke and a new shopping list of parts haha

Alex

[ravihotwok]

I totally agree, once i have done this wiring do you think im better leaving the spindle unplugged at the motor just while I make sure the software is communicating etc?