The school I work at owns a Boston Dynamic Spot robot. We have just purchased a Bittle robot and I can’t wait to get it. My ultimate goal is to have a class set of Bittle‘s that the students can use alongside Spot. To this end, has anyone attempted or succeeded in creating a robot arm to replace Bittle’s dog head? I am not sure of the logistics or even feasibility of this as I don’t yet have my Bittle but I think this would make a great project to consider. What are your thoughts on this?
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There's another structure that you can hook weight below Bittle's belly. You need to print a pair of them.
As for replacing Bittle's head, you can check out this demo of Bittle with a motorised 3D-printed beetle horn. Another thing that might be of interest is a 3D-printable replacement cover for Bittle's back on which one could expand with Lego. It's likely possible to make something of an arm with Technic Lego. The main problem I foresee is countering the added weight of anything that Bittle picks up. Bittle itself is quite light and its standard gaits are easily thrown off balance. It would probably be more stable to have Bittle drag something behind him than have it held in front of him.
Yes, we will release an official robot arm in a couple of months.