Aluminum Built - Actobotics / Hall Sensors

[SC-Maik]

Do you get enuf down ward travel with that spring ?

Looks great!!!

I'm waiting on some tools and materials.

SC-Maik can you post what you can to the stp files? Thanks!!!

I have to clean up my DT fusion files and will share what I made.

Jeruw and zdayton did you share your the boards at OSHPark? I was searching for them and could not find them.

Check again later for step files.

[SC-Maik]

Yamaha uses this mechanism on foot pedals to adjust tension of extension springs

[SC-Maik]

Step file of the assembly so far

[SC-Maik]

[Thx1821]

Thanks for sharing the files. The build looks great.

[SC-Maik]

Early design of aluminum pivot arm (laser cut)

[SC-Maik]

[jeruw]

Looking awesome! How do you plan to have the pivot arms cut? 2 operations? The fact it's not just a 2/2.5d shape makes things a bit more complicated. That's why for my design I just used a piece of solid shaft for the cross piece.

What size tap are you using to thread the aluminum? I went with a standard 4-40 tap for my first build as I'd bought the recommended screws for the printed version. I found the 4-40 taps to be quite fragile, ended up snapping 3 of them. I was going to get a thread forming (rather than thread cutting) tap for future use.

Do you plan to anodize the parts red?

[SC-Maik]

Each pivot is made out of 3 pieces

2x7mm (outer pieces) and 1x11mm (middle one)



One hexagonal f/f 25mm spacer will be used as a bridge between them while I glue everything together. Spacer will provide threads as well (M3).



I do want to anodize them red but I don't know if that would be too extreme. I even want to put leather on handle

Thoughts?

[Thx1821]

What about an automotive upholstery shop, can't be very different from wrapping a gear shifter knob in leather