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Good morning, first off I did search the forum but couldn’t really find the information I need.
I have been using a spring loaded diamond drag bit to etch acrylic with excellent results.
I recently tried etching glass with the same bits, with very mixed results. The etching starts out great but as the job proceeds the quality rapidly goes down hill.
My questions are, has anyone used these type of bits for glass etching, and if so what are your settings?
I have been using the following settings for acrylic and attempted to use them on the glass also.
In vcarve .08 depth/pressure, 200 in feed rate, 0 spindle speed.
Thank you in advance
With results in the picture it tells me that the work surface is not level. The bottom end with “Married” is higher so there is more pressure on the bit…as it goes to the Top of the piece that end is lower so there is less pressure on the spring loaded bit.
One thing to keep in mind…thin glass tends to flex very easily. Your method of clamping may be causing this. I ended up making a wooden frame for clamping to etch glass.
I had the same problem turns out my waste board was off. You don’t see it on acrylic because it’s soft and super easy to scratch . Glass is much harder so from the looks of it you are losing pressure some where try to zero your z height off the top left corner. Then bring it down to bottom left and do x and y. And see what happens
My settings would do you no good, my X-Carve is no longer comparable to a stock machine in both rigidity, speed or controller. I have made a few changes.
Throw a scrap piece down and tweak settings. Judging from your picture your settings are pretty good…I truly believe your issues are related to an uneven surface…either the wasteboard or the glass.
