This brush was given to me in 2020 by Cole Shapiro who is on the Rock Phenoms youth climbing team at the Phoenix Rock Gym. He mentioned that he found a website that offered a download program that made 3D computer printed bouldering brushes. So he made a few brushes and one was donated to the museum.
From Turbo SunShine website: Bouldering Brush V2 - I decided to make make a fully 3d printable brush design that can be adapted by future designs. In this first batch of brushes I will release a Bouldering/Climbing Brush, a Nail Brush, and a small Test Brush. The brushes print in about 4 hours, (test brush around 30 min). Use a 0.4 mm nozzle(and 0.4 mm line width), and 0.2mm layer height. Please watch the video for more information! https://youtu.be/AKOOY4CtZNg Link to the nail brush ............................................................
From Hackaday website by Brian Benchoff: When it comes to 3D printing, functional prints are still few and far between. Sure, you can print a mount for anything, a Raspberry Pi case, but there are few prints out there that are truly useful, and even fewer that are useful while taking advantage of the specific capabilities of a 3D printer. The brush from Turbo SunShine turns this observation on its head. It’s a useful device for getting the grime, sand, and sweat out of handholds while rock climbing, and it’s entirely 3D printed using manufacturing techniques only 3D printers can do. If you’re thinking you’ve seen something like this technique before, you’re correct. The Hairy Lion from [_primoz_] on Thingiverse used a fine mesh of bridging to create small fibers of filament emanating from the mane of a lion. While it’s not a gender-neutral print, this is one of the first objects to make it to Thingiverse that truly showcased the sculptural element of many thin fibers of 3D printed filament. With this Bouldering Brush, these fibers become much more useful and even functional. It’s still a great technique, and if you can get your printer set up correctly and the settings correct, this is an awesome print that will easily demonstrate the capabilities of your printer. Like the Hairy Lion, the Bouldering Brush is two handles that are mostly solid, and fine filaments of extruded plastic connecting these handles. Take the completed print off the bed, cut down the middle of the bristles, and you have a functional, completely 3D printed brush. Just don’t brush your teeth with it.
The brush once printed is actually two brushes as one, but is cut apart once it is dry making two brushes.