Tank3d printer build

[Robin Hewitt]

I managed to find a ground glass trivet in a local discount hardware place which gives very good adhesion with no more effort than the occasional wipe with acetone.

I keep wondering about frosting it with a waft of hydrofluoric acid, trouble is HF really does everything H&S warns you about for everything else. It really does kill you and all the hospital can do is make you a cup of tea and contact your next of kin. Back in my youth the chemistry books told you how to frost glass by dissolving old teeth

[Neale]

I keep wondering about frosting it with a waft of hydrofluoric acid, trouble is HF really does everything H&S warns you about for everything else. It really does kill you and all the hospital can do is make you a cup of tea and contact your next of kin. Back in my youth the chemistry books told you how to frost glass by dissolving old teeth

I remember the school chemistry book with a picture of a hand that had been dipped in HF. I treated the bottle of HF with care after that; doubt if it would be allowed within miles of a school these days!

A friend of mind is a sculptor/artist working with glass and she tells me that sandblasting is the way to go. Certainly with PLA, it works well, and as Boyan says with PVA glue, you need to let the glass cool for some time before the print comes free. I typically print with a bed temp of 60C, but of course that depends on how accurate the bed temp measurement is. At least it's a lot less critical than hot-end temp.