firmware

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johnz
Posts: 23
Joined: Mon May 18, 2015 12:37 pm

firmware

Post by johnz » Tue Jan 26, 2016 1:24 pm

Hello I have a Prusa Reprap Acrylic i3 it had a sanguinololu board but now I want to replace it with a GT2560 board ...what firmware should I flash the Gt2560 to work with the printer ??? please help....Thanks.

Mark
Posts: 1553
Joined: Thu Aug 06, 2015 9:19 am

Re: firmware

Post by Mark » Tue Jan 26, 2016 5:02 pm

Use the one for the I3X single extruder printer, and note the dimensions here:
// Travel limits after homing
#define X_MAX_POS 210
#define X_MIN_POS 0
#define Y_MAX_POS 210
#define Y_MIN_POS 0
#define Z_MAX_POS 180
#define Z_MIN_POS 0

Also the steps/mm here:
#define DEFAULT_AXIS_STEPS_PER_UNIT {78.74,78.74,2560,95} // MXL, Z M8=1.25, MK8

I think that might be enough.

johnz
Posts: 23
Joined: Mon May 18, 2015 12:37 pm

Re: firmware

Post by johnz » Tue Jan 26, 2016 10:39 pm

I did all that ,now my prints come out real small?? I did not change anything in Repetier as it was working great with the other board.

johnz
Posts: 23
Joined: Mon May 18, 2015 12:37 pm

Re: firmware

Post by johnz » Tue Jan 26, 2016 10:45 pm

also it wont print in the center, it prints on the side of the bed???

Mark
Posts: 1553
Joined: Thu Aug 06, 2015 9:19 am

Re: firmware

Post by Mark » Wed Jan 27, 2016 4:24 pm

now my prints come out real small??---have you changed the steps to those that in your original firmware?
And the bed center, you can try to calibrate it here:
QQ截图20160127162338.jpg
QQ截图20160127162338.jpg (149.38 KiB) Viewed 4514 times

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