3 axis y ganged v 4 axis options.

[Bazmundi]

I am building a dremel cnc thingy, ganged Y using a btt skr piko 1.0.

If I pick 3 axis ganged Y for the grblHAL build, I only get $140..$142 as "motors", where as I was expecting I may have seen $140..$143 with Y1=$141 and Y2=$143 (for example). But given what I am seeing (or not seeing) is E following Y=$141 so any setting for Y=$141 logically is going to YE physically?

Or is it I need select 4 axis and Y and E are ganged then? That isn't intuitive really if ganging is a thing and the means to have one axis follow and other (and so you don't need a controller to send same gossip to two motors at once, which I assume can get messy).

[terjeio]

Ganged/auto-squared axes cannot have different settings so e.g. Y-axis settings applies to both Y motors.
Use the $pins command to check which pins are assigned to which motor.

[Bazmundi]

Yep, so quadruple checking and as I was assuming y2 on "extruder" port. So, only glitch is [PIN:15,Y enable] probably should be [PIN:15,Y2 enable] etc.

$pins
[PIN:16,Emergency stop]
[PIN:22,Probe]
[PIN:4,X limit min]
[PIN:3,Y limit min]
[PIN:25,Z limit min]
[PIN:11,X step]
[PIN:6,Y step]
[PIN:14,Y2 step]
[PIN:19,Z step]
[PIN:10,X dir]
[PIN:5,Y dir]
[PIN:13,Y2 dir]
[PIN:28,Z dir]
[PIN:12,X enable]
[PIN:7,Y enable]
[PIN:15,Y enable]
[PIN:2,Z enable]
[PIN:17,Spindle on]
[PIN:17,Spindle on]
[PIN:18,Spindle direction]
[PIN:18,Spindle direction]
[PIN:20,Spindle PWM]
[PIN:20,Spindle PWM]
[PIN:23,Mist]
[PIN:23,Mist]
[PIN:21,Flood]
[PIN:21,Flood]
[PIN:29,Aux analog out 0,E0]
[PIN:1,RX,UART1]
[PIN:0,TX,UART1]
[PIN:9,RX,Trinamic UART]
[PIN:8,TX,Trinamic UART]

[lappa1]

my machine has X Y1 Y2 Z and A with 5 driver boards. Do i set this up as 4 axis with ganged Y when loading in the info for the firmware? firmware
TIA

[lappa1]

Do you know how many pins are on the STM32F103 mapped for GRBLHal? Web Builder eg. Has STM32F103 and CNC 3040 RC which is a 64 pin MCU while my GD32F30$CCT6 is a 48 pin MCU
THANKS

[terjeio]

That depends on the processor variant. The board map determines wich pins to use.
Different variants may reqiure a specific clock setup and/or a linker file.

[lappa1]

I’ll map my board tomorrow. Do you want me to post my results?

[terjeio]

Do you want me to post my results?

Yes.

[lappa1]

This should be the MAP for the GD32F303CCT6 48 pin MCU on my board
There were errors so I have deleted it

[lappa1]

This should be the MAP for the GD32F303CCT6 48 pin MCU
GD32F303.xlsx

[terjeio]

Can you creade a map.h file, compile and verify?

[lappa1]

I have no idea how to do that. I am, however, quite happy to upload a bin/hex file to my board to see if it works.

[terjeio]

Copy one of the existing board maps and modify that.

[lappa1]

The pin out was wrong. I’ve pulled it