Solved Z Axis Issues

I have been struggling for weeks trying to debug a problem that has cropped up with my printer.

Basically have replaced everything.

What it appears to be is after some amount of time the Z axis must stop lifting properly for layers.

Here is an example, it printed the first layer, and then the second layer tried to print basically at the same Z height and pulled the first layer all up.

I have had this happend with a 20x20x20 cube as well, about half way through the cube it started to never lift the Z axis anymore and just drug the nozzle over itself every layer.

I'm out of ideas on how to fix this.

 

I would reflash the software using the most recent off robo site. Go to Ardeno and reflash it.

 

The most recent upgrades have been New X carrage. which I had the whole thing apart. I also just put new nozzle on it.

I'll check the wiring.

It wouldn't be firmware firmware doesn't just stop working . Doesn't look like they have changed the firmware in a long time anyway ( I have the leadscrew update firmware on it )

Edit: Just pulled the bottom cover off and noticed my fan was not on both pins. maybe the board was overheating? Rest of the wiring still looks good. Gonna try it with the boards fan plugged in correctly this time

 

Well derp. that seems to have fixed it thanks

 

And now its happening again..z axis works great on first layer..then does not lift for second layer. Tripple checked the fan.

No idea whats going on now.

 

Maybe with the fan not working it could have fried the z driver on the board?


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Yea its been working just stopped again.

I'm about to order a new ramp's. dunno what else could be doing this..its real strange.