david.d10
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Joined: Fri Jan 13, 2017 5:15 pm
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MK2S and glass on heatbed

Sun Sep 10, 2017 6:57 pm

Hi,
I just received my pre-assembled MK2S.
I tried to install a glass (bought with the printer) on the heatbed plate. First, the glass is 20x20 but the plate is 25x25, it's quite strange, not :shock: ?
Second and worst. Each time I'm trying to print something, the head touches roughly and bends the plate, so I had to reset immediatly the printer and redo a Z calibration without the glass.
Because of that, I tried every menu and finally had to do a full calibration XYZ after a "reset". Not so bad to learn how Prusa works ;)
What I understand is : the MK2S has a special plate, and a sensor on the head to detect position. Nice. But it only works if there is nothing (except PEI sheet) between the sensor and the plate.
So here my questions :
1/can I use a glass over the plate with MK2S ?
2/if yes, how to add 2.97mm to Z to avoid crash with the plate ?
3/how to do calibration tests with the glass ?
4/if it is not possible to do calibrations with the glass, how to disable "9 pts auto-calibration" on every print :?: ?

Thanks,
David

aaron.s5
Posts: 586
Joined: Tue Jan 10, 2017 4:17 am
Topics answered: 15
Location: Boulder CO, USA
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Re: MK2S and glass on heatbed

Sun Sep 10, 2017 7:49 pm

Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage or loss.

If you solve your problem, please post the solution for others.

david.d10
Posts: 2
Joined: Fri Jan 13, 2017 5:15 pm
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Re: MK2S and glass on heatbed

Tue Sep 12, 2017 1:33 am

Thanks a lot Aaron.

All questions have been answered into the thread :P
To resume : glass bed with MK2S is not a really good idea, except if you love juggling :lol:

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