@Birger T Is this how you imagined modular feet? With the right length small screws and the right thickness feet the hole would not have to come all the way through the wrap-around part. I j...

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Birger T Is this how you imagined modular feet? With the right length small screws and the right thickness feet the hole would not have to come all the way through the wrap-around part.
I just split the foot depth in half here for a quick sketch, but it might be better to have a thinner section on the leg servo section, just enough to hold the head, and a thicker section for the screw to grip on whatever design provides the toes/flippers/claws/etc.

9 comments

Liked by Bill SCHONFELDER and 3 others

Bill SCHONFELDER Master Builder

last year

You are good with that fusion. My goto program is Inventor. Pretty impressed with your work. Glad your here.

Camilo Parra Palacio Otto Creator

last year

Awesome! modular body check, modular head check, modular feet check, modular hands check but we don't have more than one design LOL what else can we do modular?

Have you seen the latest 3D print files? V11 https://wikifactory.com/+OttoDIY/otto-diy-plus/files/3Dprint we came back to left and right feet since the symmetric solution many complaint of being "wobble" and not proper fix.

Ian Shatwell

last year

Bill SCHONFELDER It might look good, but I have no idea whether it will work well in practice. Needs testing. Getting the tolerances right so that the foot fits onto the leg (ankle?) snuggly with nothing being forced or loose might take a bit of experimentation. On my printer I generally allow 0.25mm gaps between anything which is meant to be flush.

Ian Shatwell

last year

Camilo Parra Palacio When I printed my first Otto I translated the STL files back into Fusion files (manual process, nothing automated unfortunately) and thought that the leg peg going into the foot looked a bit unreliable. A minor tweak to the design fixed it. See the diagram in my new post.

Bill SCHONFELDER Master Builder

last year

Ian Shatwell good call. I always use .2 mm and find everything fits snug. Sometimes you can tweak it in your slicer a point or two as well

Birger T Master Builder

last year

Hi Ian Shatwell, I posted a photo inside your post.

I was thinking about feet shapes made from whatever material (wood, paperboard, Lego plates) that would be mounted under the feet (with doublesided tape as well) and could increase the feet's grip too. It would not been made from PLA..

Camilo Parra Palacio Otto Creator

last year

oh Ian Shatwell you could have ask me the 3D source of Otto i made in Fusion 360 too the link is on the website for anyone to work on top of it here in this link it will update as i made improvements now starting the V12 http://a360.co/2ogUzxE

Ian Shatwell

last year

Birger T I can see the appeal for stick-on feet, and hands and maybe even faces for younger children playing with daddy's robot. If daddy will let them, of course!

Birger T Master Builder

last year

Ok - I thought / read that your son wanted toes on it..

And I saw a biped in an amazon advertising mail, poor functions but with nice feet, they look like lasercut and mounted underneath the moving feet.

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