Glass bed question

Share your hardware improvements for your HIC i3, the good and the bad!
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AndrewJLLeather
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3D Printer(s): hictop pursa i3 autolevel

Glass bed question

Post by AndrewJLLeather » August 7th, 2016, 1:53 am

I've got my hic i3 metal frame auto leveling printer up and going. I'd like to add a Borosilicate glass plate, but I have a question on how to execute it since my printer has the SN0-4 inductive z axis sensor. With the addition of a typical 3mm glass plate I'm pretty sure when doing it's auto homing it'll not sense the bed and crash into the glass and cause major problems. Any ideas?
my printer


thanks

AndrewJLLeather
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Joined: July 28th, 2016, 11:23 pm
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Re: Glass bed question

Post by AndrewJLLeather » August 12th, 2016, 1:45 am

I ended up buying a cheap piece of plate glass cut to size from Lowe's. I unplugged the inductive z sensor and added the extra microswitch for the z axis. I was able to get the z axis limit switch homed in the good old way and it seems to print fine.

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Chip Luck
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Re: Glass bed question

Post by Chip Luck » August 15th, 2016, 11:21 am

AndrewJLLeather wrote:I've got my hic i3 metal frame auto leveling printer up and going. I'd like to add a Borosilicate glass plate, but I have a question on how to execute it since my printer has the SN0-4 inductive z axis sensor. With the addition of a typical 3mm glass plate I'm pretty sure when doing it's auto homing it'll not sense the bed and crash into the glass and cause major problems. Any ideas?
my printer


thanks
Yep, inductive will NOT work on a glass bed

mpoling
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Re: Glass bed question

Post by mpoling » September 22nd, 2016, 9:30 pm

See my post about the inductive Z sensor. You can get it to work by inverting it on the gantry and having it detect the smooth rod on the X axis. Works great once you find where to mount the Z sensor on the vertical gantry support.

dickerdb
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Re: Glass bed question

Post by dickerdb » April 7th, 2017, 11:31 am

I put my sensor there on the gantry using the spare z microswitch holder that was in my kit. It works great. Thanks for the idea mpoling.

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