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ATC being worked out. Its gonna be fun haha. it wont be fast like a brother cause the spindle itself is slow to clamp, but 2-3 second tool changes should be viable.

 

 

The RS-422 interfaces on the 7I85 are most commonly used
for SmartSerial I/O expansion but can be used for other RS-422
uses like absolute encoders (SSI or BISS)

Fortunately the AI stuff is so far easy to spot. There are some that I swear are paid by the word. LOL

Thank you very much for your quick reply.
The 5 serial connectors on the 7i85 (without "S") are outputs for drives with RS-422 interface, correct?

Unfortunately, your encoder code is good for MPG, but totally useless for spindle.
You have not taken into account many factors, such as a variable overflow, or a digital signal sampling too quickly.
For example, 2500 P/R encoder at 3000 rpm overflows int32_t after 72 minutes...
At the other side, low resolution encoder can produce velocity as 0,0,3 not 1,1,1...
One encoder dedicated only for spindle is a very good idea.
I know, because I wrote working and widely tested code, only for spindle control.
Read the code at github.com/tuxcnc/SpindleETH
This is for STM32 with hardware encoder support, but this is not important.

No additional hardware is needed, you simply make sure the 7I85S
is jumpered for differential mode (this is the as-shipped default)

The amount of AI content on YouTube is getting to be painful, and it's quite obvious those that put it out don't bother reviewing it......how many times do you need to hear the same phrases.

Hallo zusammen,

leider bin ich mir trotz vielem Lesen noch immer nicht sicher, wie Glasmaßstäbe mit EIA-422-Schnittstelle korrekt an Mesa-Karten (z.B. 7i85 oder 7i85S) angeschlossen werden können - wird hier ein Signalkonverter benötigt?
Wenn ja, wäre hierzu der "422ENC One channel RS-422 to TTL adapter" von Mesa geeignet?


Danke,
Gerhard

Just getting started on planning my AXYZ cnc router retrofit. Regarding the “AXYZ AXI” stepper drivers, the wiring diagram I have indicates driver control is standard 3 cable (12vdc, step, dir). Dip switches have the micro steps set to 1200 micro steps/rev (default). Is there anything else I need to know?

The stock spindle inverter was replaced with an eTrac X2C and is currently wired with 6 wires (gnd, decelerate, accelerate,  5vdc, feedback, on/off). Is there anything else I should consider?

My current plan is to purchase a Mesa 7i96s. For a pc, I have a Dell Optiplex 7050 and an ELO touchscreen ready to go.

Backstory, the AMC controller board on the small AXYZ cnc router that I bought is bad. It shows ‘Error 92’ or no controller OS and the AXYZ tool path software is unable to communicate with the board to restore it. My plan had been to convert the machine to Linuxcnc anyways but it would have been nice to test it and take some measurements prior to starting the conversion.