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Author Topic: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion  (Read 100106 times)

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Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion
« Reply #20 on: October 04, 2011, 05:36:00 PM »
Looks a sturdy machine. As far as I know these are re-badged Leadwell machines. Correct me if i'm wrong!

Looks like a hefty spindle motor.
John

Its a beast for sure...  Thanks for the info on the re-badged, didn't know this but it gives me more options for spare parts. 

Thanks
JH

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Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion
« Reply #21 on: October 05, 2011, 06:27:27 AM »
You're welcome...great project!

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Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion
« Reply #22 on: October 05, 2011, 06:45:08 AM »
Is it 40 or 50 taper?
John
Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion
« Reply #23 on: October 05, 2011, 11:02:00 AM »
You're welcome...great project!

Did a little research, its looks like the Eumach VMC Model MC800P and the LEADWELL MCV-760 are the same CORE machines.  This is good news for me.   Thanks again for the tip!

Thanks
JH
Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion
« Reply #24 on: October 05, 2011, 11:02:48 AM »
Is it 40 or 50 taper?
John

CAT 40, looking for pull stub info now....

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Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion
« Reply #25 on: October 05, 2011, 04:33:52 PM »
No problem Jh I've noticed your machine had the spindle off centre ln the head casting...the old hurcos were just like this and they were made by leadwell.
John
Core Electronics
« Reply #26 on: October 06, 2011, 02:42:49 PM »
Been working on the core electronics for the machine…  PC with XP, Dual Parallel Ports, Break Out Boards, ModBus IO, Charge Pump, Solid State Relays, Power Supplies, Fuses and Power Strips. 

The charge pump circuit with eStop is the first item and is up and running.  I cleaned the lube pump guts and fixed the lube low/alarm switch!  It’s now connected to the eStop circuit so the pump only runs when the system is “READY” and will light an LED on the main screen when the lube is low.

Thanks,
JH

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Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion
« Reply #27 on: October 07, 2011, 04:51:45 PM »
Are you going to be using the PP? What drives will you be using?
Hood
Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion
« Reply #28 on: October 07, 2011, 06:13:02 PM »
JH are you going to use a PLC for the ATC this time or are you happy with the approach you used on your previous mill?

I appreciate you taking the time to post your efforts not only because it helps others to learn but because it is inspires many
people to complete their retrofits.

Keith
Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion
« Reply #29 on: October 07, 2011, 06:13:36 PM »
Are you going to be using the PP? What drives will you be using?
Hood

The plan is to use the Parallel Ports (PP) for the real-time I/O (Step/Dir on XYZA, Home and Limit Switches, MPG Inputs, … ).  The signal to noise ratio is not the best with these but I will be able to over come this as before.  I did look into the PLC stuff, but at the last minute I decided to stay in my comfort zone and go with PPs.  Also, I have a lot of code and state machine logic that can be reused in VB, thinking this might save me some time if I stay with PP.

I did add a Modbus serial I/O card for the none real-time I/O (ATC, Lube Pump Control and Monitor, Spindle RUN, FWD, REV,  … ), its has 12 Inputs, 12 Outputs and some ADC inputs and DAC outputs as well.

For the drives, I am currently evaluating some AC Brushless Servo Drives from Mach Motion.  I still need to get some more of basic electronic core in place to dynamically tune them on the system unload a load.

Thanks
JH