I am afraid the wiki pictures show the Y axis built the wrong way.
This
drawing, and all the model renderings and the STP file show clearly the carriage with the limit switch holes and the top t-slot
to the left, looking from the motor to the idler wheel (rear to front). The tapped holes for the foot are at the idler wheel side.
However, these photographs:
- ORDbot-heated-bed-s.jpg (22.65 KiB) Viewed 16134 times
- ORDbot-sphere-s.png (143.67 KiB) Viewed 16134 times
- ORDbot-asm-s.png (132.82 KiB) Viewed 16134 times
and most of the rest show the limit switch holes and the top extrusion t-slot
to the right.
I initially followed the drawing and drilled the Y-axis bottom hole according to the drawing. After that however, the tapped holes were on the wrong side of the extrusion. The pictures were also proving that I drilled the hole on the wrong side. This led to the first reassembly of the bot.
Then, just as I finished cutting and connecting all the wires to the RAMPS board, I realised that there is no way to wire the Y-axis limit switch on the bottom side of the carriage plate and drive the cable to the bottom left (looking from the rear) Z-axis extrusion hole, because the wires would be crossing the belt and interfering with it.
Conclusion:The model and the drawings are correct and the Y-axis limit switch can be wired on the bottom side of the plate, if the drawings are followed. The wiki pictures show a different assembly.
The Y-axis foot holes of my kit were tapped on the wrong side of the extrusion.
Now, I either need to wire the Y-axis limit switch on the top of the carriage plate or I should reassemble the bot like in the drawings, after tapping the other side of the Y-axis extrusion, and go back to the first hole I drilled, which I thought was wrong.
And go again through the wiring hell