Needed some replacement oil level windows for my newly acquired VN12 mill.
Found a suggestion online to use polycarbonate sheet, and sandwich it between 2 faced pieces of round stock (of the same diameter as the window you need) using a live center so it can be turned to size.
Had a bit of 1mm Lexan lying around, so tried it, and works well. only takes about a minute to make each window once you're set up.
The retaining ring from the mill, and a roughed out piece of sheet. Leaving the paper on both protects the material and helps to hold it in place.
Sandwiched in place, and turned to diameter using a sharp HSS tool.
A couple of finished windows
I'll get a couple of thin o-rings tomorrow and fit them.
Steve
Found a suggestion online to use polycarbonate sheet, and sandwich it between 2 faced pieces of round stock (of the same diameter as the window you need) using a live center so it can be turned to size.
Had a bit of 1mm Lexan lying around, so tried it, and works well. only takes about a minute to make each window once you're set up.
The retaining ring from the mill, and a roughed out piece of sheet. Leaving the paper on both protects the material and helps to hold it in place.
Sandwiched in place, and turned to diameter using a sharp HSS tool.
A couple of finished windows
I'll get a couple of thin o-rings tomorrow and fit them.
Steve