One-shot Bias Tape Maker

thingiverse

One-shot bias tape maker. Edits: * 4/12/2019: Replaced STLs with 2v6. These model are easier to thread and have a better fit with the pegs and uses way less filament because they replace the input block with an input guide. * 4/13/2020: Replaced STLs with 2v15. These models reduce the height of the blocks and the size of the input guide for faster print time. They also provide a better fit for the pegs into the holes. * 4/14/2020: Added STLs for 3v6. These models further reduce print time, replace the thin spacing pegs with built-in solid pegs and improve all fit for easy snap-in assembly. *4/16/2020: Added STLs for 3v9-11. These models further reduce print time and replace the spacing pegs with a better alternative. The 2 1/2" mode now uses a taller input guide that fits better. * 4/17/2020: Added STLs for 4v2 which only use the last block and an input guide to make the fold. This prints faster and is easier to thread. Thanks to @Dixon3dprinting for experimenting and letting me know that only the last block is needed to fold the fabric. Also adding an untested version for 1". * 4/17/2020: Replaced STLs for 4v2 with 4v3 which now has some hooks to hold on to the input guide. Setting the right fit based on dimensions was hard due to printer and filament variability. Adding hooks solves this. Removed STLs for version 2v15 because 3v9/11 has proven stable to use and print. * 5/5/2020: Removed 3v* files because 4v*s have proven stable. This bias tape maker handles the two-stages of bias tape making in a single pass. It first folds the fabric into a loop and then folds it again in half. The output stip can go directly into the iron or into the sewing machine. Available Input Sizes: * 1.00" (25.40 mm) * 1.25" (31.75 mm) * 1.50" (38.10 mm) * 1.75" (44.45 mm) * 2.00" (50.80 mm) * 2.50" (63.50 mm) * 3.00" (76.20 mm) * 4.00" (101.6 mm) Untested - By popular demand * Need another size? Ask and I can render an STL for you. * Note: The output size is 1/4th the input so 3/8" (9.5mm), 1/2" (12.7mm) and 5/8" (15.8 mm). How to use: Assemble as illustrated in the photo and run the tape. Here is a how-to video: https://youtu.be/9r0nX6GE1Sc. A video for the older version lives at https://youtu.be/4WB6Jxeqejk. Note, for the latest version (beyond 2v6) the width of the block is the width at which you should cut the tape. It takes a little practice to thread it and run it, but after 3 or so passes you'll be able to do it in less than 30 seconds and will be able to fly through a batch of tape. Start slowly and speed it up as you gain confidence. Some people are driving the output strip into laminators to have automated pulling and ironing in one shot. The towel I use helps adjust the height of the iron relative to the output block, but it is also damp so it warms up without burning and makes the ironing process more effective so you can go faster. My daughter set up an online store for anyone who wants one and doesn't have a 3D printer. You can order here https://www.etsy.com/listing/798388313/one-shot-double-fold-bias-tape-maker-1-1 and we'll do our best to print and ship as fast as possible. At the moment, this is not intended to generate profit, but only to recover costs while helping the volunteers sewing masks. I've replaced the metric 40mm, 50mm, and 60mm tape sizes, with imperial 1.5", 2.0" and 2.5" because they are virtually identical and some people use pre-cut tape to imperial sizes. This refers to the input size. The output stip size will be 1/4 of the input. Let me know if you'd like other sizes. How to print: * Easy: Set everything to 3 or 4 perimeters, use ~3% infill. * Fast: Set everything to 2 perimeters and 0% infill. Reinforce the mounting pegs with 4 perimeters. Add 3% infill to the body of the 2 1/2" size. I'm printing on a Prusa MK3 set to print at 150% and the small ones print in ~45 mins.