I have a small 4 sided project which is 41.5 x 190 mm in size. It is as perfectly square as possible and the home end is at right angles to all sides. The work piece is held in a very secure machined jig and each side is machined in turn and the bottom left corner should be exactly the same coordin…

Hey Kerry, when you say “when checked”, you mean probed? Do you probe XYZ after turning the piece over? Do you home the machine once at powerup, or more often?

Thanks for the replies and yes original machining was checked with probe but only the Z axis checked after turning over as the job was the same as a two sided one with locating spots for the reverse side but instead of pins it was a jig with extremely close tolerances to locate it so should not need…

Hey Kerry, do you use a g-code file that is for one side, and run the same file again after you turned the workpiece? Or do you have a file with the turning in it?

Basically the same file but it is the other side of the 3D model but still should be the same coordinates etc . Just thinking about the suggestions about homing causing problem but am unable to see how it could - I home the machine at startup and the axis’s never touch anywhere near the homing poin…

[image] coopkb: Basically the same file but it is the other side of the 3D model but still should be the same coordinates etc . you run a file once, then you turn the piece over, and then you run the file again? Is this correct?

Hey Kerry, [image] coopkb: Basically the same file but it is the other side of the 3D model but still should be the same coordinates etc . you run a file once, then you turn the piece over, and then you run the/a file again? Is this correct? If so, after the program was run the first time, …

The model is a four sided chess piece with different sides on each side - File is basically the same except the model changes as per side. Each side starts at the same datum point - bottom left corner - and runs that side and then the next. As I said the block of wood is exactly the same size and …

Hey Kerry, you did not answer my question: After the first file was run, where is the router then? Do you have to return it manually before running the next file? If so, how do you do this?

Sorry once the file is run the router automatically returns to the datum point which is the bottom left corner and the next file is loaded after the work is tuned over to machine the back face - usually the datum is relocated but it shouldn’t need to be as in the case of a double sided job as the bo…

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349iq2345 January 7, 2023, 9:37am 2

Hey Kerry,

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