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To predict bottle neck diameter at the holes I measured the gap on all of the ones I have and got an average to work from. Then I 3D printed several iterations of the neck and settled on one that enabled being able to snap on the metal stopper fitting without stretching it. That being said, the wire assembly is bendable and can be adjusted for size, so it can be made to fit a range of neck diameters.
Available on the Downloads page
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3D print this, pour in plaster to make a slip casting mold! My previous work on this project assumed a smaller 3D printer (making it necessary to print flanged PLA mold sections that clip together). But larger 3D printers are now common, making the CAD work much easier. This drawing is parametric for height, body diameter, wall and plaster thickness, and neck height (for the full bottle set body=160mm, neck=96). This uses my standard clips and embeds (upper right). Neck vertices are proportional to height, so resizing works well. The top end is filleted to permit the longest possible mold on the print bed (diagonally). The bottom inside perimeter is chamfered, strengthening the default 0.8mm side wall junction to the base (that being said, be careful when removing it from the print bed, flexing too much will cause failure here). Doing this smaller size is for prototyping and testing. Note that casting plaster on a 3D print creates artifacts (which will appear as wood grain, lower right), later I will create a hybrid plaster/PLA or rubber case mold. This PLA mold prints quickly, it has a hollow back side, permitting easy removal with a heat gun. There is no spare, it employs a pour spout, making the mold shorter and producing a better lip. Need a stoneware slip casting recipe? L4768E or L4768H are a good choice. A glaze recipe? How about GA6-B (or similar)? Go full DIY with this, you will never turn back.
URLs |
https://torontobrewing.ca/products/swing-top-replacement-lids-12-pack
Swing top stoppers at Toronto Brewing Also called "Swingtop Grolsch Style Glass Bottle Replacement Cages". |
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