Making a friend a charcouterie board using some wood from Her dads cherry orchard cut down in 1948.
Was just taking a final skim of 0.25mm with a 30% step over using a new out of the box 1/4" down cut bit, because my usual down cut bits are getting a little tired.
Got two small steps along the X axis about 40 mm apart right across the board, Either the gantry is taking a very small hiccup when it travels along the Y axis leaving the steps in a line, or Easel is dropping a stitch. Otherwise the board is beautifully flat.
Nothing I cant sand out,
Any hints as to cause, software or machine.
Hey Tony,
usually with this issue it’s the machine, not the software.
Have you ensured that your machine is rectangular (“squared”) (bar gauge) and coplanar (“not twisted”) (fishing line method).
In both cases if it is not accurately adjusted, not only you can get parallelograms instead of rectangles, but also workpieces with a twisted surface. Surfacing the wasteboard will not help against lack of coplanarity (twisted machine base), the machine will only reproduce the twist on the workpiece surface. Also if any of both is not accurately adjusted, the Y movement can block.
Just re ran the flattening program that I used yesterday and there is definitely some vertical movement. Odd that I did not get the lines, but did get a groove where the machine did the 90 degree turn working out from center. Gonna have to toughen up and try to find the source.
Is your router trammed in pretty close?
Found movement at the back of the Y axis rails, brought the rails back to their level and gonna have to pull the table out and design something to fix the rails securely, they were tight but thanks for making me check them.
Thinking that getting some 2x2 angle iron and milling the gussets out of the inside corner so they will sit tight on the edge of the table and tap the horizontal for the Y hold down bolts, be nice if I could thread in a vertical levelling bolt will think about it for a while.
Thanks again for bringing my feet to the fire.
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