Advice for future rebuilds

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23 May 2017 12:36 #93528 by tecno
Hi folks,

Have following rebuilds in front of me and would like to hear your opinions on what Mesa boards are needed.

Milling machine X/Y/Z/A all step/dir servos with encoders.
Spindle with VFD 0-10V with encoder (4 step mech gearbox = not implemented for feedback)
Renishaw TL probe and spindle probe. Home + limits +/- on X/Y/Z. Coolant pump, lubrication pump.

Alt. all above but Spindle to be AC servo step/dir with encoder

Is it possible to get above running with a 7i93 or do I need 7i80
Have following Mesa boards 7i90HD to be replaced with above
7i42
7i42TA
7i37T

Alternaitve for Lathe Would love to have PathPilot as my GUI
7i93? +Any of the boards above?
X/Z step/dir servos with encoders, Spindle VFD 0-10V encoder or AC Servo step/dir with encoder
Combined Home/Limit on X/Z. Coolant pump.
Future enhancement with 2 MPG

Any thoughts would be appreciated.

Cheers
Bengt

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23 May 2017 12:44 #93531 by andypugh
Replied by andypugh on topic Advice for future rebuilds
Are you committed to ethernet control? This sounds like a perfect fit for the 5i25/7i76, except for the encoders on the servos (which you could simply ignore for a step-dir system)

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23 May 2017 12:52 #93532 by tecno
Replied by tecno on topic Advice for future rebuilds
Using a POS PC today with Mach3+ Kflop/Kanalog so yes ETH is a must as there is no way to add 5i25.
Also I want encoder feedback.

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23 May 2017 13:10 #93535 by andypugh
Replied by andypugh on topic Advice for future rebuilds
Page 15 of the 7i93 manual specifically mentions a firmware that supports the 7i47S
store.mesanet.com/index.php?route=produc...=83_86&product_id=99

That offers 4 channels of step/dir with encoders and a spindle control analogue output. I am not clear if it has a 5th encoder for the spindle.

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23 May 2017 14:01 #93538 by tecno
Replied by tecno on topic Advice for future rebuilds
So what you are saying I could manage with one 7i93 + 7i47S + my 7i37T I already have, Spindle encoder maybe??

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23 May 2017 14:04 #93539 by andypugh
Replied by andypugh on topic Advice for future rebuilds
I think so. But would need to look at the exact pinout of that firmware to be sure.

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23 May 2017 14:05 #93540 by tecno
Replied by tecno on topic Advice for future rebuilds
Would PathPilot be possible?

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23 May 2017 14:10 #93541 by andypugh
Replied by andypugh on topic Advice for future rebuilds
Ah, here it is:
github.com/LinuxCNC/hostmot2-firmware/bl...SVST1_4_7I47S_72.vhd
Only 4 encoders.

I think that I have heard that the 7i37T inputs are too slow for you to add an encoder counter on that board, but I might be wrong.

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23 May 2017 14:11 #93542 by andypugh
Replied by andypugh on topic Advice for future rebuilds

Would PathPilot be possible?


No idea, I have never even tried to use it.

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23 May 2017 14:15 #93544 by tecno
Replied by tecno on topic Advice for future rebuilds
OK, hopefully PCW jumps in and clarifies that question

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