Thread: 3 Axis CNC router
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21-04-2017 #371
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22-04-2017 #372
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The Following User Says Thank You to routercnc For This Useful Post:
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23-04-2017 #373
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23-04-2017 #374
Joe be careful after connecting the Caps because they will be charged and will give nasty surprise if you short the wires.
Edit: To answer your Alarm wire question from below then no I don't.Last edited by JAZZCNC; 23-04-2017 at 09:50 AM.
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23-04-2017 #375
Last edited by njhussey; 23-04-2017 at 09:06 PM.
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23-04-2017 #376
Last edited by JoeHarris; 23-04-2017 at 09:59 PM.
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26-04-2017 #377
Progress on the psu...
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27-04-2017 #378
I think I've finished the power supply... haven't switched on yet as I want to look it over again with fresh eyes and make sure I haven't done anything dumb! Here she is:
Power in top right via the D curve mcb which will be din mounted and dc out from the lower terminal block. I have wired a 10k resistor between the dc terminals to drain the caps once powered. Any comments before I turn it on?!
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27-04-2017 #379
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27-04-2017 #380
Only comment (if you have a chance to make any small mods at this stage) is to add a few more sets of terminal contacts for the output, all wired in parallel. This allows you to run separate power feeds to each stepper driver, rather wiring them daisy-chain fashion, and it's easier than trying to stick three big wires in the same terminal. Not sure if it really make a difference in our class of machine but it is generally considered good practice not to share high-power connections between devices, and it's a lot easier if you have multiple terminals available. Might be able to put multiple spade terminals on each of your contacts, though?
Last edited by Neale; 27-04-2017 at 03:45 PM.
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