Bottle cutter

I saw the perspex version of this and thought I'd make a printed version.

You'll need to buy the following parts:
2 off - M8 screwed rod (200mm or 250mm long)
2 off - M8 hex domed cap nuts (optional, I had some lying around)
10 off - M8 hex nuts (12 off if you don't use the domed nuts)
12 off - M8 plain washers
1 off - glass cutter head (sold on aliexpress in packs of 5)
6 off - M3 hex nuts
2 off - M3 x 16 socket cap screws