XY axles

Vertex 3D Printer Vertex - Assembly and user manual
1

Hi,

during some prints, mainly the ones with very small and fast direction changes, I hear these “slack” noises while printing but couldn’t detect any “slack” while assembled. Meaning the belts were doing their job, I think…
After disassembling the belts I noticed this slack, show in this thread http://forum.velleman.eu/viewtopic.php?f=62&t=15579.
Question:
Is this normal? As I don’t detect this slack, or any for that matter, with the belts on. Not even “forcing” the printhead to see if it has any slack, which it doesn’t have. Still I’m having some layer shifting ( around 0.1 - 0.3 ).
I’m considering making new bearings to replace the iglidur ones with brass ones with only “2 touching” circles…Anyone has ever considered this?

Regards
Jorge Oliveira

2

Something like this:

Damn crossair… :stuck_out_tongue:

3

I also found out that the axis of the radial fan blower has much backlash and with fast direction changes in x-direction you also hear the fan moving. A ticking sound.

4

I have found no backlash on the printhead rods…but is something to consider