bootleg diy omnifixo from door stopper hardware soldering helping hand
Obliczymy ostateczną cenę na podstawie wybranego pliku. Sprawdzisz ją i zaakceptujesz przed płatnością.
Zapisane na tym urządzeniu.
improved push release clamp $12ish omnifixo knockoff 14mm clamp travel (tpu spring) 16mm clamp travel (metal spring)
- Ocena
- 0 / 5
- Polubienia
- 0
- Pobrania
- 2
- Wydruki
- 0
- Wyświetlenia
- 36
- Oceny
- 0
Aktualizacja u źródła:
Informacje o modelu
- Źródło
- Printables
- Kategoria
- Tools
- Licencja
- Open Community License v1.1 + General Attribution v1
BOM
ball with m6 threaded hole
magnet for said ball
metal plate for platform (or use a weighted base, which takes 12 nickels)
a 30mm long spring with inner diameter > 6mm (or you can print the tpu spring. (adaptive layer height max quality)
I got 1&2 from magnetic door stopper, you can find them on amazon, aliexpress or Temu around $4 each (less on Ali and Temu). you have to take apart the door stopper(both parts), get the ball that is screwed into a rod, and the base which the bottom plate is threaded and can be twisted out(see pic). after putting the base in the printed magnetic base holder, stick it to the steel plate of your choosing first, to make sure the base attach to the plate stronger than the ball attach to the base.
edit added weighted base(12 nickels=60g) if you don't want to find a metal plate.
you can use shorter springs, just make a washer for the rod. but the jaw opening distance will be less
if you want to tweak the tpu spring, look for wave spring generator scad
use adaptive layer height for top clamp and maximize quality for thread detail, top cap might need support depends on orientation
glue top cap to bottom clamp's 2 pillar after assembly
use some heat shrink tube if you want softer jaw
if frictions too high during clamp movement try deburr tool or light surface smoothing by sanding
recommend PETG but PLA will work if you bump up infill and make sure layer adhesion is good
if you have trouble with magnetic strength too strong for either base to plate or ball to base:
add clear tape between said parts. e.g. if magnet stick to plate to strong, add some layers of clear tape to the bottom of the base. if the ball stick to the base too strong, add some layers of tape under the thin metal cap of the base if you're using door stopper. 1 layer of clear scotch tape is 0.05mm, finer than what 3d printer can put out consistently. I put 3 layers of clear scotch tape on bottom of base, and 3 layers of tape between the magnet's top and the thin metal cap in the base (see last pic where top of the base magnet is). this results in a good balance between strength and movability
here's the onshape link if you wanna modify