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Initial Z Height
Posted: Fri Dec 09, 2016 1:32 am
by woodworker2001
I went through the quick start guide program and everything seems to be printing very well on my new M2. I must say I am very impressed by this printer.
I am however getting a slight lip on the first layer of my prints. From what I have read it seems as though my initial z height is too close to the bed. Does this seem right? How do I readjust that? Do I just use the quick start app again or is there another way to just tweak this number slightly?
Thanks
Dan
Re: Initial Z Height
Posted: Fri Dec 09, 2016 7:13 pm
by 3dPrintingMD
There is a way to fix this easily.
At the terminal, M503.
Look for the Z # that is generated. Write it down.
Subtract .01 - .03 from the number.
M206 ZX.XX
M500 ZX.XX
That will change to the new number, and then save it to memory.
On a Rev E machine, making the number higher, brings the nozzle and bed closer, subtracting does the opposite.
Re: Initial Z Height
Posted: Tue Dec 20, 2016 6:48 pm
by woodworker2001
Thanks for the reply, but I am not following.... I am very new to all of this. I am using Simplify3D.
Not sure where to get to this M code and see the numbers generated.
The bottom of my prints is squeezing out and printing with a lip on the bottom couple of layers.
Re: Initial Z Height
Posted: Thu Dec 22, 2016 3:34 pm
by 3dPrintingMD
In the machine control panel in S3D, then goto the terminal.
You can enter the commands there.
Re: Initial Z Height
Posted: Fri Dec 23, 2016 7:31 pm
by zemlin
Another option is to go to the G-CODE tab in S3d and enter a small negative offset on the z Axis.
Re: Initial Z Height
Posted: Sat Dec 24, 2016 4:15 am
by ksevcik
zemlin wrote:Another option is to go to the G-CODE tab in S3d and enter a small negative offset on the z Axis.
I do this. As long as you're consistent about how you level the bed and set your initial Z height, you can use this method to adjust for any difference between the height you set with the feeler and the height you actually need to run at to get adhesion without over-squishing the first layer. Plus every filament type will be a bit different anyways since the bed and extruder temps are different.
Re: Initial Z Height
Posted: Fri Jan 04, 2019 8:20 pm
by woodworker2001
I finally found this link. It is a great easy way to reset the initial Z height
https://www.dropbox.com/sh/4et2bvwry3bc ... J5-Ja?dl=0
Re: Initial Z Height
Posted: Tue Mar 12, 2019 4:07 pm
by zemlin
Can you explain what's going on here? Not about to click on a link with no explanation behind it.