Feature Request: Add Bottle Presets for GPI/SPI threads

[cryptomilk]

On all the beverages plastic bottles you can buy in the supermarket you normally have a GPI 28/410 thread. It would be nice to have presets for that.

See https://www.paramountglobal.com/knowledge/bottle-neck-thread-finish/
A calculator is here: https://www.noupoi.net/bottle-cap-thread-calculator.html

[cryptomilk]

Looks like I was wrong, the standard thread is PCO28 1810

https://www.printables.com/model/262018-pet-bottle-pco28-1810-thread-standard-models

[cryptomilk]

According to the drawing linked at https://www.isbt.com/resources/isbt-threadspecs

Minor diameter: 24,51 mm
Pitch: 3,18 mm

[mwganson]

There are some bottle presets: the sp400 and sp415 with the bottle thread profiles. A requirement of any new type is that it must be scalable.

[cryptomilk]

I think you can scale it. Like GPI or SPI they just have some manufacturing improvements. Like how many thread rotations you have and they leave spaces to reduce material. POC28 1810 is used for every PET bottle out there. There are several POC28 181x versions, but they are just improvements to reduce the material to reduce costs. The threads are not going around in one line, they have breaks to reduce the material used.

[cryptomilk]

I don't have my 3D Printer yet, but I can give feedback about the PCO28 1810 thread I created with ThreadProfiler and you can wait till then.