Simplify3D User Forum

I have a robo R1 with autolevel.

I'm trying to set it up with simplify3d like this post here.
http://community.robo3d.com/index.php?t ... -faq.4664/

When I change the Z-Offset in the options window ( sorry I can't remember the tab that option is in ). I'm not seeing any effect.

I notice in the script tab there is this.
M565 Z-1.1; set the offset for auto-leveling mechanism

But this M565 value does not get updated when I change the z-offset option in the tab.

Are they conflicting with each other? Should I not change it in the options box..and instead just change it in the script?

I had the same issue. For some reason changing the offset in that tab does nothing. You have to go to the scrips tab and change the offset in the g code

gcode offset will shift the actual gcode being sent to the printer up or down depending on what your specify. Changing the actual gcode in the starting script is telling the firmware exactly where the bed leveling probe is in reference to the 0,0,0 location.

You can change M565 to Zero, I believe that Robo 3D has recommended both scripts in the past.

I've only ever seen one robo3d "auto-leveler" in person, and from what it looks like they don't use an actual probe, but a mechanical switch strapped to the z-axis that is triggered or "closed" by the weight of the x-carriage/gantry. when the nozzle pushes against the bed, it causes the carriage to lift up and thus opening the switch and triggering the mechanical end stop bed leveling. because of this, to achieve the most accurate results you would want to change the M565 value to the negative height of the little hump/button of the mechanical switch since this distance is the distance traveled before it triggers actuation. It should be a small value

I have an R1 and mine is actually .8 mm. So it would be -.8 since the "probe" is .8 mm above the nozzle. Typically the bed leveling probe would be below the nozzle, but as the actual nozzle is the probe and it has to be below the bed slightly to actuate the switch, you need to enter a negative number here.

Typically they are -.7 mm to -1.0 mm on the Robo R1's.

This is the number i tweak to get my first layer printing perfectly. Setting this correctly and not using the z offset will make reading any gcode much easier in the future too. I ran into that when resuming some prints which had failed.