Beer Bottle Jars

I wanted spice jars made from amber glass. Not only because I like the look, but because it protects spices from sun exposure. However, I couldn't find any. And since my spice collection is always growing I didn't want to have to deal with reordering jars and them possibly going out of production. So this is the solution I came up with.

Print settings:

TPU gasket: 1 bottom layer, 1 top layer, 1 or 2 walls, 7% infill or lower and random seam position (otherwise the seal will be stronger at one side and the lid will shift). You want the gasket to be as flexible as possible, and these are the settings that work for me. If you find better settings please leave a comment and I'll update the description.

PETG lid: 2 bottom layers, 2 top layers, 2 or more walls, 20% infill, no supports and optionally random seam position (looks better). Don't forget to pause the print at the layer specified in picture 2!

Cutting the bottles:

(Note: Cutting glass is dangerous, do it at your own risk. I am not responsible for anything).

Do not forget to wear PPE! you don't want to breathe in glass dust or cut yourself.

Adjust the bottle cutter until you have the desired size for your containers. Place a clean and unlabeled bottle and firmly press it down while rotating once. Make sure to keep light pressure toward the back of the bottle cutter to prevent accidental shifting. Your bottle should now have an even score all the way around.

Light the candle and hold the score over the flame 30 seconds while rotating the bottle, Immediately after run cold water over the score for 30 seconds while rotating the bottle. keep repeating until the bottle splits in half. 

Place sandpaper (I start with 120 grit) on a flat surface and make it wet. This prevents some of the glass dust from clogging up the paper, and more importantly prevents the glass from dusting up and entering your lungs. Place the cut end of the glass onto the paper and start making circles while trying to keep it straight. You want the edges to be rounded off slightly, so sand those down as well.

After doing this you can move up to 240 grit while sanding it the same way as before. Keep increasing the grit of the sandpaper until the surface has a texture you like(I went up to 400). You can also speed this process up by using an orbital sander.

Materials I used:

Bottle cutter: https://s.click.aliexpress.com/e/_c3vWGTpZ (There are cheaper options but they limit the minimum size of the bottle and are not very pleasant to use).

Sandpaper (for orbital sander): https://s.click.aliexpress.com/e/_c4lgPljH

PETG: https://s.click.aliexpress.com/e/_c3nWZCXp

TPU: https://s.click.aliexpress.com/e/_c3CmOuqJ (I use this 95a TPU but I think softer might work even better)

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