Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
reprap:anet:a8:coupler [2019/01/03 08:09] – [The correct installation] cj_elec_techreprap:anet:a8:coupler [2019/01/03 08:16] (current) – [But my axis still wobbles!] cj_elec_tech
Line 13: Line 13:
 The green marks show how deep the rods should sit in the coupler. The red mark shows where they should not go. ;) The green marks show how deep the rods should sit in the coupler. The red mark shows where they should not go. ;)
  
-===== Apply your coupler ===== +===== Tighten your coupler ===== 
-Remember to tighten the screws on the coupler over cross. An example would be:+Remember to tighten the screws on the coupler in a cross-wise pattern. An example would be:
  
 ^ ^ ^^^^ ^ ^ ^^^^
-|1 (first screw)|3(third screw)| +|1 (first screw)|3 (third screw)| 
-|4(last screw)|2(second screw)|+|4 (last screw)|2 (second screw)|
  
 ===== But my axis still wobbles! ===== ===== But my axis still wobbles! =====
-There are many reasons for unwanted movements. Take a look at the [[reprap:anet:a8#troubleshooting|troubleshooting]], print some [[reprap:anet:a8#frame_stabilization|frame stabilizations]] and tighten your belts. Be aware of all these so-called anti z-wobble devices foundespecially those that constrain the threaded rod at the top of the printer. Fixating the top of the rod makes the rods statically indeterminate, basically meaning that you over constrain the system. This will not help reduce z-wobble. True anti z-wobble devices decouple x and y movement from z movement and/or take the spring movement out of the coupler by constraining the threaded rod at the bottom, but above the coupler.+There are many reasons for unwanted movements. 
 +Take a look at the [[reprap:anet:a8#troubleshooting|troubleshooting]], print some [[reprap:anet:a8#frame_stabilization|frame stabilizations]] and tighten your belts. 
 + 
 +Be aware of all the so-called anti z-wobble devices found especially those that constrain the threaded rod at the top of the printer. Securing the top of the rod makes the rod statically indeterminate, basically meaning that you over constrain the system. This will not help reduce z-wobble. 
 + 
 +True anti z-wobble devices decouple x and y movement from z movement and/or take the spring movement out of the coupler by constraining the threaded rod at the bottom, above the coupler.
  • reprap/anet/a8/coupler.1546499359.txt.gz
  • Last modified: 2019/01/03 08:09
  • by cj_elec_tech