Detangling Hairbrush with Flex Bristles

Printing and Assembly Instructions

Print the bristle (5 copies) with TPU. Use the "thin" version for harder TPU and the "medium" for softer. I haven't made a thick version, as I don't think it will work with extremely flexible filament anyway. But please let me know how it works out, and if you think a thicker (or even thinner) version is needed!

This project is maybe not the easiest, and depending on the TPU you have,printer settings etc, it may need a bit of trial and error. But it's very satisfying when you get it right, it works really well!

Printing the brush body

• Print with PLA (PETG or other common filaments probably work also)

Printing the bristles:

• Print slow (always a good idea with TPU)

• Print without a brim or anything else that you need to remove from the print

• Make sure to check "Avoid crossing perimeters" in the print settings to avoid stringing

• If you print many at once, position them back-to-back on the print bed, that way, any stringing from the move between the parts will be at the base, not the bristles themselves. Like so:

  

• (Enable show travel moves (blue lines here) top make sure the settings are correct and you won't get any stringing on the bristles themselves.

• TIP: Print just one to begin with, and test the fit in the brush body. If the fit is too loose, resize the Z-axis only to make the bristle base thicker (e.g. add 0.2 mm) and print again.

Assembly

• Press the bristles into the slots starting at one end. 

• If the fit is very tight, use a flat-headed screwdriver to push the bristles into the slots.