Where to Mesure the test cut

1

Gday all. im trying to calibrate and was wondering where to mesure the test cut. cheers

2

IMPORTANT CORRECTION!
I’ve edited this post to correct an error About which edges to measure. I hope I’ve made the correction before anyone was led astray by my error.

The test cuts will be two short vertical marks, one in each lower corner. Measure the space from one edge to the matching edge - right to right or left to left. With the triangular sled attachment, you’re looking for something around 1905mm, though it might be off from that on the first few cuts. Each run will move a little up the board so you can see the progress and know which pair to measure. I just ran it with the dev versions (v1.00) and it took five repetitions to get to within 0.5mm.
With the quadrilateral arrangement, there will be three cuts, two across the top and one near the bottom. Again, measure one edge to the matching edge - right to right or left to left. or top to top or bottom to bottom. I can’t remember what the distances were, 600mm comes to mind. Again, the pattern steps each repetition. I was getting calibrated in three or four iterations using that calibration.

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3

@000patto000

Welcome to the group. I used a pencil in a hole drilled in the sled to test until I got what I was looking for. @blurfl has answered the rest quite well.

Thank you

4

Thanks for the reply. the pattern i get is a diagonal to the t0p a horizontal to the right a little square then a vertical down and a horizontal to the left

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Do you have the z-axis kit installed? Are you describing the path that the sled takes, or the furrow that the router cuts?
The sequence should be:

  • raise the bit above the surface
  • travel diagonally northwest
  • lower the bit into the material
  • make a short (1") vertical cut
  • raise the bit above the surface
  • travel east
  • lower the bit
  • cut 1" vertical
  • cut 1" horizontal
  • raise the bit
  • travel south
  • lower the bit
  • cut 1" horizontal
  • raise the bit
  • travel west and wait while the user measures and records the results

The measurements are taken from the 1" cuts.
If you don’t have the z-axis kit, you should be prompted when to raise and lower the bit manually (the setting ‘z-axis installed’ should be off if you’re changing the bit depth by hand).

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6

just worked out the z axit motor was in reverse. it was cutting grooves in the wood along the whole path. Just playing with it now.

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7

That would explain it! Good luck :smile:

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