[Grbl_Esp32 Issue#715] JOG A Axis using AntFix branch COREXY machine

#1 – bdring 于 2020-12-21

I seem to get he same speeds regardless of G90/G91 mode.

Is $MaxRate the same for all axes?

Send …
“
G90
G0
A0
A300
G91
A-300
“

Does it move at different rates during the (2) 300 moves?

#2 – qiwalker 于 2020-12-22

Sorry for incomplete information the problem is when use G1 and set feedrate the A Axis move very slow even use maximum feedrate value
for other axis working fine using G1

$MaxRate is same for All Axis

using this code :

G90
G0
A0
A300
G91
A-300

Working Fine… no different rates… and same speed.

#3 – qiwalker 于 2020-12-22

Another Report Trial using core XY

send
G0A1000

when A axis still moving send Ctrl+x (soft reset)
and the send $X

send again G0A1000
error found : when A Axis Moving, Motor 1 and Motor 2 for XY Axis also moving
Motor 2 also make noise (ringing)

#4 – bdring 于 2020-12-22

I can confirm the second problem you are reporting.

If XY are at -1.000, -1.000 in CoreXY, the motors are actually at -2.000, 0.000. After the reset, the XY are targeting -2.000, 0.000 but applying CoreXY inverse kinematics to that.

I have to see what reset is doing and fix that.

#5 – qiwalker 于 2020-12-23

ok i’ll be wait for your next update and do another trial for your new CoreXY firmware.
thankyou and keep health ^^

#6 – qiwalker 于 2021-01-06

hi…

is there any update ?

thanks ^^

#7 – bdring 于 2021-01-06

I have not had time to work on this. It is a complicated issue. If you reset, you should home to restore the position for now. I hope to look at in around the middle of the month.

#8 – qiwalker 于 2021-01-06

ok, thanks for your prompt reply ^^
and also kindly check problem using G1 for ABC axis

thanks & regards