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January 29, 2016 at 6:31 pm #853
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February 1, 2016 at 11:30 pm #1130
Ramps 1.4 board is it fried
Can I fix it.Started the printer the other day no movement of axis in repetier host , then I noticed the bed or the hot end were not warming up.
Hmmm , then I remembered repetier will not allow you the move the motors until everything has reached temperature.
So what next
Switched it all off and start with the power supply – on inspection there was a frayed positive lead and I suspect it must have been touching the negative lead.
Then I noticed the farmost left input + connection on the ramps was a little burned.
So now big time investigation.
So I guess the poly fuses need to rebuild themselves – in the meantime I will remake all of the cables to ensure nothing cannot touch anything it should not.
More to follow.
February 2, 2016 at 12:35 am #1136
Here we go again
Poly fuses seem to have recovered , all cables re-done , applied power – ran up repetier – hot end and bed still not heating up – more investigation required.
So How to check the motor side ?
Give the arduino a new sketch to check the motors , done that , reset the arduino and all the motors kick into life.
So now the problem is the +- on the left hand side that distributes power to D8,D9,D10 – – q1,q2 look fine q3 looks discolored so next job is to test them.
But’s that is for another day.
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