Starmill PC - Mach3 conversion and Tooling

All info relating to the Denford Starmill CNC milling machines

Moderators: Martin, Steve, Mr Magoo

paul hunt
Posts: 10
Joined: Tue 29 Mar , 2011 9:20 am
Hardware/Software: Starturn 4 Mach 3
full conversions on Boxford mill and lathes...
now working on Denford Starturn...
Location: Warwick

Re: Starmill PC - Mach3 conversion and Tooling

Post by paul hunt » Mon 12 Sep , 2011 20:36 pm

Hi to all.
Firstly thanks to all with the help on inputs / outputs. hi's or low's
After many nights work the first interface board for a starmill in now complete, just tested it out on the bench and works
realy well, the spindle speed control is now performing as it should, did find a slight glitch R18 in the above scematic
should go to +12v and not gnd. it is all opto isolated and electricaly isolated from the main 5volt supply, all the inputs / outputs are opto isolated.
at the moment it has 4 inputs and 8 outputs
Let me know if you re interested in the schematic and BOM for the board and i can send you a copy.
the interface should also work for the starturn lathe.
interface starmill.JPG
interface starmill.JPG (49.25 KiB) Viewed 9161 times
Best regards to all
Paul

lemelman
Posts: 2
Joined: Mon 05 Sep , 2011 8:42 am

Re: Starmill PC - Mach3 conversion and Tooling

Post by lemelman » Tue 13 Sep , 2011 7:04 am

Hi Paul,
Nice work.
Testing on the actual m/c will be interesting.
--
Regards, Gary

lemelman
Posts: 2
Joined: Mon 05 Sep , 2011 8:42 am

Re: Starmill PC - Mach3 conversion and Tooling

Post by lemelman » Wed 28 Sep , 2011 7:00 am

Is the main motor spindle speed available to a program? Is there a signal available from which the spindle speed can be determined?
--
Regards, Gary

stop-start
Posts: 1
Joined: Thu 21 Sep , 2023 15:24 pm
Hardware/Software: Starmill PC and Mach 3

Re: Starmill PC - Mach3 conversion and Tooling

Post by stop-start » Mon 25 Sep , 2023 12:40 pm

Okay, bit of thread necrophilia here but the drawings in this thread have proved extremely helpful, but I have a question. I see clearly the connections from the relay to the spindle motor but what has me totally stumped is the signal connection from Mach 3 to the board. Does this connect in any way to the 96 pin header? Any guidance with this would be gratefully received,

Many thanks.

dpslwk
Posts: 4
Joined: Sat 25 Jan , 2020 19:00 pm
Hardware/Software: Novaturn
VrTurning
Fusion 360

Re: Starmill PC - Mach3 conversion and Tooling

Post by dpslwk » Fri 27 Oct , 2023 18:53 pm

stop-start wrote:
Mon 25 Sep , 2023 12:40 pm
Okay, bit of thread necrophilia here but the drawings in this thread have proved extremely helpful, but I have a question. I see clearly the connections from the relay to the spindle motor but what has me totally stumped is the signal connection from Mach 3 to the board. Does this connect in any way to the 96 pin header? Any guidance with this would be gratefully received,

Many thanks.
Enable and direction are wired via the 96way header but speed goes directly to the PWM board

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