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19-06-2016 #1
Evening all,
Really need some advice and help on how and what I need to control the spindle on my new Triac with MACH3. The machine as received is completely stripped of all electronics except for the spindle motor (SEM MT30U4-36) and drive card (Sprint 1200). So far I have managed to wire up the spindle motor and drive board and control it via a 10k pot and verify all works OK (Phew).
The Mill also has an ATC unit that I will add to the conversion later on. What I'm trying to understand is how to control the spindle for the ATC alignment.
My other question is could this setup be used for ridged tapping? I read somewhere that you would need to convert the spindle to an axis via software so the Z and spindle movements can be synchronised.
The spindle motor has a Taco built in, can MACH use this for position or would I need to make a separate encoder disk with a slot and sensor?
Lastly what BOB would people recommend, I would need this to control the spindle and ATC plus limit switches etc or would a PLC be better for the ATC??
Lots of questions I know, if anyone could point me in the right direction I would be most grateful.
Cheers
Mike
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20-06-2016 #2
you need to use a spindle v4 board to connect BOB to sprint drive card.
machine cant be used for ridged tapping, threadmilling is your friend
I used a separate encoder for rpm feedback into mach, was about a fiver and works a treat.
I'm running a pmdx126 for my triac, v4 spindle board, pmdx-104 for atc and Ethernet smooth stepper
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21-06-2016 #3
The sprint speed controller is not isolated, is the V4 isolated? if not i think you will find out that this can damage things.
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21-06-2016 #4
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21-06-2016 #5
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21-06-2016 #6
i think the description is pretty clear
http://diycnc.co.uk/cnc-boards-v5-spindle-board/
Fully Opto isolated inputs for live motor controller circuits
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12-01-2017 #7
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26-03-2017 #8
is it still possible to buy the v4/5 spindle boards? DIY cnc seems to have disappeared.
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19-04-2017 #9
Hi
I also need to replace the V4 board in Denford triac Mach 3 conversion. I contacted Roy formerly of diycnc who had this to say "Sorry, I sold the business back in 2015 to the guy who advertises the plasma cutters.
He sold all the boards untill the end of last year but now just concentrates on his own machines.
No spare boards, he had everthing."
I did a little googling and found this https://cnc4pc.com/motion-control/sp...rol-board.html Do any of the members here think it could be a replacement for the old V4s? I'm not all that hot on electronics but it superficially looks like it may be similar.
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20-04-2017 #10
Looks like we both came up with the same research, it looked like it would work to me too, I did a bit of reading on it and it does seem like it would work coupled with the sprint board.
The only other possible solution I came up with was coupling the UC300 ETH 5 LPT with a cheap Opto isolated bob with analogue outputs into the sprint. its a much more expensive option but would serve 2 purposes - 1. as a motion controller and replacing the parallel port with Ethernet. and 2. As the spindle speed control board. From what ive read it would work, but i havent gone that route yet myself so do your reasearch dont take my word for it!
I'm someone will chime in and tell you a better option now ive mentioned it though.
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