Prusa I3 X bed Temp problem

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ajoreis
Posts: 4
Joined: Sun May 01, 2016 6:14 pm

Prusa I3 X bed Temp problem

Post by ajoreis » Sun May 01, 2016 6:34 pm

Hello,
i have a problem with my Prusa I3 X bed temp, i wanted to print whit a ABS filament and i config the bet Temp to 110°C, but the Printer can't this.
The max Temp for the bed is ca. 87°C. What is wrong ??

otherwise everything is fine.

Thank for Help

Olaf

My Printer is 3 old.
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Admin
Posts: 486
Joined: Wed Nov 30, 2011 9:49 am

Re: Prusa I3 X bed Temp problem

Post by Admin » Fri May 06, 2016 4:45 pm

hello,
Please refer to this post to check the bed.
http://www.geeetech.com/forum/viewtopic ... 19&t=17039
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bert59
Posts: 1
Joined: Sun May 08, 2016 5:11 pm

Re: Prusa I3 X bed Temp problem

Post by bert59 » Sun May 08, 2016 5:38 pm

Measure the glass plate it should be 3 mm borosilicate glass if not it wil not heat up good as mijn is 3,6 mm glass. my heat bed had broken prints on it and could not heat up.Thy did not replace it now a ntc resistor should be 100kohm but it is 70kohm the temp is not for ABS hot.
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ADVALL
Posts: 8
Joined: Tue May 24, 2016 7:28 am

Re: Prusa I3 X bed Temp problem

Post by ADVALL » Tue May 24, 2016 7:39 am

Olaf

Measure the resistance the board's element at room temperature. To reach 110 deg c in a reasonable time at 12 Volts line voltage a resistance must be 1.20 ohms or less 12v boards are specified at 1.0 to 1.2 ohms and must fall into this range to reach 110 deg c in a reasonable time with overhead to 120 deg max. Also ensure your line is 12 volts.

If you buy a new board be sure it meets the resistance specification!!!
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