Glass Bottle Cutting Jig

by 4ndy, published

Glass Bottle Cutting Jig by 4ndy Jun 14, 2011


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Adapted from a tool I saw in this video:
It's quite long so I'll try to get the point in my instructions.

Clamp a glass cutter into this setup and you'll quickly be able to turn empty wine, beer, etc. bottles into useful things such as drinking glasses.

I have an idea for how the top end of wine bottles could be used, so don't go throwing those bits away yet. Kinda building up to something here ;)

All the bolts in the diagram are M4x20mm, and there is a 30mm piece of M8 studding holding the 608 bearing in place.


  • Print and bolt (or glue, melt, whatever) the parts together as per the picture.
  • Fit a bearing of whatever size you like.
  • Clamp a glass cutter in place.
  • Adjust them so that a bottle can easily turn on the two points of contact.
  • Adjust the conical plug so that the cutting wheel is at the height you want to cut away.
  • Turn the bottle through ONE rotation on the blade to make a single small score all the way around.
  • Carefully dribble some hot water over the score line.
  • Dribble some cold water over the score line.
  • Continue to alternate the last two steps until the heat stress drives the fracture through and the bottle comes apart.
  • Sand/grind down any remaining sharp edges.

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Nice! I watch Greenpowerscience all the time. I also wanted to make this one because i couldn't find this glass cutter, and other ways of cutting glass doesn't work.

I want to use thicker bottles like Bacardi (as long it's big and strong), to combine this with this video:


Except, i don't realy know if it can be used to cool instead of heating.

Greetings, Dippo