Another shot with the printrbot...

3D Printing
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1

Another shot with the printrbot…
http://www.youtube.com/attribution_link?a=KVGXo9IJaJo&u=/watch?v%3DRzBKWJ__9Do%26feature%3Dshare

2

Loose connector or damaged wire to “X” stepper? Something binding the “X” axis as the carriage goes up?

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@John_Rice still trying to figure it out… It seems to be printing the cube (pyramid), but at least is doing better then yesterday

4

I’m not familiar with how printrbot does things, but your stepper drivers may be overheating momentarily causing them to go into thermal shutdown. Once they cool some they come back on and keep going. Meanwhile, the microcontroller has no idea the drivers and motors missed steps. Your parts where the cube is slanted one way makes me think this is the case, however it’s strange that some of your parts are by chance coming out pyramidal meaning you have a perfect storm of driver shutdowns.

If this is the case, a cooling fan on the controller or better ventilation will help. Otherwise you may have to adjust the driver current.

@Brook_Drumm ?

5

@Ben_Malcheski
Thanks Ben… it never pass through my mind how complicated this printer could be… i have no idea how to tackle what u just explained…

6

Hello,
check mechanic
from all axsis

  • is all screws corrected (belt-wheels) ,fixed?
  • is belt-tensions (X/Y) ok ?
  • is electric connectors ok?
  • is extruder correct fixed ?
  • belt teeth are ok?
7

@javierymirna It could be a loose wire/bad connection somewhere too. Your control electronics are in the box with PB on them, yes?

If so, try wiggling some of the connectors to the controller in there. Be careful to not touch any AC power if there is any in that housing. If you can’t find any bad connections, check out this: https://printrbot.zendesk.com/hc/en-us/articles/201877030-How-To-Adjust-Stepper-Motor-Current

I don’t hear anything that indicates mechanical binding as I don’t hear the loud skipping noise that stepper motors make when the axis does not move.

I highly doubt this has much of anything to do with a firmware setting.

8

@Ben_Malcheski
Hi Ben! Yes everything is in a metal case, I’ll have to take it apart… but I don’t really want to do that… I don’t want to void the warranty and I already spent the last two day messing with the firmware… printrbot asked me to start taking the probe wires off the printrboard as well…

9

hello,
you still have warranty for your printer 3D?
use it!
and let the problem solve by the manufacturer or trade it for a new device.

10

@Hans-Jurgen_Lehrer yeah… that’s what I’m going to do…