What's wrong with this macro

zapta

I have this macro whose goal is to move 1mm in the x direction very very low, over 1 minute. It does go to 100, 100 and then to 101, 100 but the second movement is immediate, not over 1 minute.

What am I missing?

G90   ; absolute positioning
G1 X100, Y100 ; starting point
G1 X101 F1  ; move 1mm over 1 minute.

jens55

set speed for line 2 as you do not necessarily know what the current speed setting is ... and if I misunderstand the issue, drop the speed parameter on line 2 so it goes at the same speed as line 2 .....
Hope that helps
Edit: .... I now believe I don't properly understand your problem based on your explanation .... shouldn't have replied.

zapta

Thanks @jens55. I want line 2 to move in normal speed (it does) and line 3 to go very slow, moving 1mm over 1 minute (it doesn't it moves fast). In other words, I expect the macro to run for about 1 minute instead of of only a second or two.

fcwilt

@zapta

Remove the F1 from line 3

Between line 2 and line 3 insert G0 F1.

See if that makes a difference.

Frederick

Phaedrux

@zapta said in What's wrong with this macro:

G1 X100, Y100

Is that comma actually in there?

I wonder if this is applying to you here:

For CNC users especially: RRF has a default minimum movement speed of 0.5mm/sec. In firmware 2.03 and later this can be changed using the I ('i') parameter of the M203 command.

https://docs.duet3d.com/en/User_manual/Reference/Gcodes#feedrate

zapta

Thanks @phaedrux and @fcwilt, the issue was the M203 I that @Phaedrux mentioned. Removing the comma and adding a G0 F1 didn't make a change. This is the working version:

G1 X100 Y100 ; starting point
M203 I1      ; allow slow movements
G1 X103 F1   ; move slowly

BTW, @Phaedrux, the title of M203 mentions just maximum, no minimum. May worth updating.