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| reprap:anet:a8:coupler [2018/03/19 22:38] – [But my axis still wobbles!] 0scar | reprap:anet:a8:coupler [2018/12/02 02:27] – external edit 127.0.0.1 |
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| ===== 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 found; especially those that constraint 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 these so-called anti z-wobble devices found; especially 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. |