"in system" endstop repeatability test
Hello.
I would like to do a repeatability test on my endstops.
Have you any way to do this on the printer itself, without having to modify the machine's hardware or software?
Even though I need to write simple software to do this test, but I will need some gcode command for this, is there?
Any command that can tell me the position from where the endstop was activated?
As a last option I can think of, that would be a bit trickier (or slower), but if it have a command that tells me the current status of the endstops I could move the Z (for example), check the state of the endstop and repeat this until it is enabled / disabled.
Ideas?
Thank you.
PS: Reasons for my interest:
1. I'm tired of leveling the table and I'm suspicious of my endstops that are really cheap.
2. I'm interested in exploring the possibilities and capabilities of the machine, perhaps even for other automation applications.
Comments
What about M119 command?
I could move 0,1mm then do a M119, check and repeat until endstop is triggered.
What do you think?
Anyway, maybe this is a nice feature to implement in Repetier, I have heard that Marlin has it.
Keep as suggestion
What would work is home and then test how far you need to move down to trigger end stop and repeat. G1 S1 disables target position check so you can also go to negative positions.
I'm trying to send gcodes to the machine using Putty, printer reports some data then start repeating "wait", anything I send it start repeating "Resend:1
I cant find anyone talking about this.
Can you help me?
There is a initialization protocol?
Resend:1 means resend line 1. Happens on checksum mismatch but would mean there was a line 1 or it is what firmware expected as it gets initialized with that as well. Make sure printer resets on connect so you see communication begins with a "start" response of firmware. If not hit reset button on printer and then communicate.
Normally toggling RTS line in communication will reset printer as well.