random number

appjaws

Is rnd implemented?
If so what would be the correct syntax to generate a random X move between X30 to X100?

Phaedrux

Yes it is, but I don't think it's been updated in the meta command documentation

https://forum.duet3d.com/topic/17954/random-number-generation-with-meta-commands?_=1614626263724

It's now been added to the functions list.

https://duet3d.dozuki.com/Wiki/GCode_Meta_Commands#Section_Functions

appjaws

Thanks, I'm trying to move X to a random place between X30 and X130.
I'm really not sure of the correct syntax, have tried
G1 X30+random(100) Y228 F3000
but all that happened was a move to X30
Any ideas on how to achieve this?

tekkydave

Try:

G1 X{random(101) + 30} F3600

or for your exact example above use:

G1 X{30+random(100)} Y228 F3000

that will actually move to X between 30 & 129 actually - if you need 30 to 130 put 101 as the parameter to random().

appjaws

thank you so much

sinned6915

@phaedrux What version RRF does this apply to?

I am on 3.1.1 and I get 'unknown function' errors when I try to use it or any of the above suggestions.

I have tried checking the Changelog file and the only thing I see referenced are the new gcode meta functions for version 3.1.0 and the redirect to the 'GCode_Meta_Commands' page where all this is listed.

jay_s_uk

@sinned6915 3.2 I believe