Differences

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

--- axidraw:axidraw [2023/05/10 07:57] – [Setup the Axidraw] formlab
+++ axidraw:axidraw [2023/06/19 07:29] (current) – [Replace the servo with a cheaper alternative] formlab
@@ Line 21: / Line 21: @@
   - Add a pen to the pen holder.
   - Position your paper with its upper-left corner below the pen tip.
-  - In Inkscape
+  - Open Inkscape
     - Select the drawing or text and select ''Path > Object to path''.
     - ''Extensions > AxiDraw Control''. Go to tab ''setup''. Click the ''Toggle pen between UP, DOWN'' option. Click apply to toggle the pen down and back up to check the correct vertical movement.
@@ Line 39: / Line 39: @@
 ===== Maintenance =====
+==== Replace the servo with a cheaper alternative ====
+Cheap compatible servos can be bought at Gotron: [[https://www.gotron.be/analog-micro-servo-1-3kg-cm-120-rotation.html|FS90]] (€5). Keep the horns from the broken 'Tower Pro' (SG90) servos. They can be used on the new ones.
+**Prepare the new servo for installation on the Axidraw**:
+^ Images      ^ Steps       ^
+|{{:axidraw:servo_01.jpg?100|}}| Without a horn installed, you cant know the current position of the servo. |
+|{{:axidraw:servo_02.jpg?100|}}| Attach the old servo horn (no need for the screw yet). |
+|{{:axidraw:servo_03.jpg?100|}}| Turn it as far as possible one way. |
+|{{:axidraw:servo_04.jpg?100|}}| Then the other way. |
+|{{:axidraw:servo_05.jpg?100|}}| Position the horn in the middle of the two motion limits. This is the center position of the gears. |
+|{{:axidraw:servo_06.jpg?100|}}| Remove the horn. |
+|{{:axidraw:servo_07.jpg?100|}}| Place it back, but now on the servo's center line. It's ready for installation in the Axidraw plotter. |
 ==== Tightening the V-slot wheels ====