bdring / 4_axis_external_driver Goto Github PK

Hello! Please tell me how you can duplicate the Y axis to the A axis? To get two motors on the Y axis. How is the alignment of the axes when parking?

First of all I have to say that you have a very nice board here.

I noticed that you do not have a pullup resistor for the probe input but you have pullup resistors for the X,Y,Z and A limit pins.
Why you didn't add a pullup resistor for the probe too ?

Cheers

Hello and thank you for your work on GRBL_ESP32.
For a future CNC project in GRBL_ESP32 and external drivers TB6600 I was thinking of making a board with 5 axes (XYYZA) with 2 Y motor and driver for squarring my grantry. Do you think that to start I can start on the design of this board and add a 5th axis? Is there enough free pin on the ESP? I saw in the documentation of the ESP that some pins are not recommended ... Thank you.
PS: Sorry for my bad english. I'm french...

I was looking at using this for a CNC build I have upcoming in which I will be using external nema 23 drivers. I'm not looking to design my own controller so I'm looking at making this board. I noticed the shift registers you are using are not up to date with the shift register currently recommended in the wiki. Additionally the 74ACT245 you used seems to be only in a 20 pin package and the 74AHCT595's I'm finding are all in 16 pin packages so they are not directly interchangeable. Will the 74ACT245's still work fine? Should I try to redesign the PCB to work with the 74AHCT595 chip?

hi,

is there any documentation for wiring optical endstop with this board ?

thanks