Topic: 1.0A z axis only going down
Gentlemen.
I recently aquired a defect Davinci 1.0A. It reported the 0014 error, and i realized soon that this was due to the 5A fuse (R271) blown. This is the 12v supply for the extruder heater.
(This machine has the "strange wire" mounted to the z axis end sensor)
I hooked the machine up to the computer, installed the XYZware, and as you may guess, it contacted XYZ, and updated the firmware on the printer
However now i have at leas three issues with the machine
1. The z axix does not move in the upwards direction. In jog mode it goes Down, but not up. i measured the feedback from the z-axis home sensor directly on the processor, and it alters from 3.267 V (ubstucted) to 0.142V (cleared). So it is not the home sensor. Also the signals from the processor to the z axis driver (STEP) is ok when commanded to go up, but no signal when commanded to go Down. so sensor is working, and driver is working.
Any sugestions how to come around this issue?
Apparently this could either be a software issue, or another signal that is holding the software from moving the bed upwards.
2. When i start the printer (in auto heating) the extruder starts from 10 degree celsius !! my room is 22 degree celaius, and this is also where the bed settles.
3. the bed does not heat up. the signal from the processor does not commant the heater driver FET to turn on.
4. Homing the axis, results in the x and y axix to home fien, but the z axix goes all the way Down and Locks itself all up at the downmost position.
Reading through this forum, I realize that i may be best of scrapping the printer. Not much positive talk here in the XYZ machines, but since i just bought 4 original filament cartridges, at leat i need an excuse for that.
Hope any supertec is able to rescue me :-)