Engr Robotics

[engr]

Silicone wheels are great and if you do it carefully you don't need to bond the hub and tyre together.

What overlap of diameters do you use?

[Shakey]

It depends on the softness of the silicone, mine is pretty damn soft so my moulds have inner dimensions 80% smaller than my hubs.

[engr]

I have made some (fruitless) progress on the tyres front.



More information can be found here: http://engr.io/antweight-tyres-attempt-1/ but the conclusion is that rubber-like material is too hard and not grippy enough.

I have also made some progress on the EDF robot: http://engr.io/edf-update-1/

[Remote-Controlled Dave]

Looks suitably complicated

[engr]

Looks suitably complicated

It's not too bad, struggling to fit it all inside

[EpicentrE]

Why would you do such lovely CAD for 3D printing and not check everything fits inside in the CAD?

[engr]

Why would you do such lovely CAD for 3D printing and not check everything fits inside in the CAD?

I did check the big things... Its mostly making the wiring neat. I made a lovely power wiring loom, but it didn't fit in; going to have to try that again!

[EpicentrE]

Fair enough. It's quite a pain to estimate how much space wires take in CADs. I still don't end up leaving enough room half the time!

[Rapidrory]

Most of my robots are built, and then the electronics crammed in wherever they fit; My last one just has the controller strapped to the outside

[engr]

To be honest it is easier to redesign and reprint if the wires don't fit, than design them in.

I have started the CAD for a few more ants, and I am still struggling to find a decent rubber duck.