jedgerton
Member
So, I've been breaking about 10% of the acrylic blanks that I drill with my fancy drilling vise (sold by one of our more talented members). As I'm sure you would guess, the problem has nothing to do with the vise.
Per the instructions, I use a piece of scrap wood below the blank to provide support and minimize chip out. What I've figured out is that when the scrap has some holes already in it, breakage occurs. What's happening is the bit hits a hole in the scrap wood but isn't centered. This results in deflection of the bit and breakage of material as brittle as most acrylics.
From now on, I will be using a fresh piece of scrap for support or at least one that's fastened down so the hole remains centered.
Has anyone else had this happen?
John
Per the instructions, I use a piece of scrap wood below the blank to provide support and minimize chip out. What I've figured out is that when the scrap has some holes already in it, breakage occurs. What's happening is the bit hits a hole in the scrap wood but isn't centered. This results in deflection of the bit and breakage of material as brittle as most acrylics.
From now on, I will be using a fresh piece of scrap for support or at least one that's fastened down so the hole remains centered.
Has anyone else had this happen?
John