Differences
This shows you the differences between two versions of the page.
Next revision | Previous revision Next revisionBoth sides next revision | ||
reprap:anet:a8:coupler [2016/11/24 21:08] – created vidschofelix | reprap:anet:a8:coupler [2019/01/03 08:06] – [Howto install the z-couplers (the right way)] cj_elec_tech | ||
---|---|---|---|
Line 1: | Line 1: | ||
- | ====== | + | ====== |
{{: | {{: | ||
- | ===== Why should | + | ===== Why should |
Couplers connect the motor to the threaded rods that move your z-axis up and down. If the motor and the rod are not perfectly aligned, the rotation of the motor will apply force to the rod and push it into x and y direction. This leads to the so called **z-wobble** and slightly shifted layers. | Couplers connect the motor to the threaded rods that move your z-axis up and down. If the motor and the rod are not perfectly aligned, the rotation of the motor will apply force to the rod and push it into x and y direction. This leads to the so called **z-wobble** and slightly shifted layers. | ||
===== The correct installation ===== | ===== The correct installation ===== | ||
- | It's simple: The middle of the coupler must be flexible. So don't insert the rods until they touch each other, just insert the rods on both sides for 5mm. They have to get in touch with the screws, but they dont need go in all the way. | + | It's simple: The middle of the coupler must be flexible. So don't insert the rods until they touch each other, just insert the rods on both sides for **5mm**. They have to get in touch with the screws, but they dont need go in all the way. |
A simple illustration: | A simple illustration: | ||
Line 14: | Line 14: | ||
===== Apply your coupler ===== | ===== Apply your coupler ===== | ||
- | Remeber | + | Remember |
^ ^ ^^^^ | ^ ^ ^^^^ | ||
Line 21: | Line 21: | ||
===== But my axis still wobbles! ===== | ===== But my axis still wobbles! ===== | ||
- | There are many reasons for unwanted movements. Take a look at the [[reprap: | + | There are many reasons for unwanted movements. Take a look at the [[reprap: |