I was cutting some acrylic yesterday,did the test on a piece of ply,perfect,loaded the acrylic and set it all off and low and behold the v bit plunged in about 4 mm on start,I let it go and the whole image was carved out at that depth.I looked at everything I did,reset with another piece of acrylic and this time the depth was bang on!!So not sure what happened.What this taught me was that the deeper you go at the base it tends to hold or restrict the light from moving up the acrylic,so it’s a fine line with the depth of carve.
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