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I just checked and they are in the left hand position.... I'm going to swap them over and give it a try!! Thank you as always for your help. 

The 4th jerks when I enable the machine and i get a following error. The only way I can get it to work is if I enter a crazy high pulse count. It will rotate but with terrible accuracy, like 1 revolution shows a couple of degrees of rotation.

You can use single ended (5 wire) encoders with the 7I97/7I97T
as long as the three 7I97/7I97T encoder jumpers for the single ended
encoder are in the single ended/TTL positions (right hand position)

What error do you get?

Good morning gents!! 
I was wondering if a cheap amazon Incremental rotary encoder (5 wire including ground/shield) could be used for a 4th axis? I am using a Mesa 7i97T board and am experiencing so difficulty with it. I can see it count in Hal show but when i try to use it in real time it keeps erroring out...
Once again thank you to all the experts that make this possible!!! 
 

github.com/bildobodo/lcnc-suite
This repo for web GUI, linuxCNC on isolated core arm CPU working without problem , another one for linux and web GUI on ZYNQ 7010

@Oxbown fixed in dev branch

awesome glad you are back up and running!

please add your json config, i take a look

okok, can reproduce it: ERROR  (CT2000) : "/mnt/data2/src/riocore/Output/Tangbob/Gateware/fpga0/pins.cst":69 | 'syntax error' near token 'mbus0'

 

Hi,I am trying to add a 16DI/16DO Modbus RTU module (N4D3E16) via an RS-485 transceiver on the tangnano9k on RioCore.When running fpga compilation, Verilog synthesis fails in Gowin EDA with the following error:

ERROR (CT2000) syntax error near token "mbus0" 

 

Infos und anmeldung hier: 

linuxcnc.org/2026/08/25/LinuxCNC-Meetup-in-Stuttgart/

René

i build a simple tool time tracker:

murdemon wrote:

here is web based interface

wow, very nice !!!
is there a repository for the web gui ?

If it all runs smoothly, it might even be worth building a separate board for it – after all, you wouldn’t need an extra PC for it anymore.

murdemon wrote:

Can share vivado and linux project ?
 

It’s a bit complicated, as it’s part of Riocore and everything is generated.
Furthermore, I don’t use Linux either, but rather baremetal (LWIP)

github.com/multigcs/riocore/tree/dev/riocore/plugins/udp2axi
 

here is web based interface

Can share vivado and linux project ?