Fixing Braava M6 not coming out of its home base

11th November 2020·1 min read

I got a Braava M6 a couple of months ago and I’ve been a happy customer so far. Most recently though, I encountered a rather annoying issue: it’s not leaving its home base anymore. There is constant wheel-spin when it tries to leave the base and at some point it just becomes stuck and gives up the job. This is particularly annoying when you have it running on a schedule and you’re away from home.

Root Cause

I couldn’t really figure out what is wrong and it also doesn’t happen in a reproducible manner.

home base

My assumption is that when it mops the floor, the wheels are becoming wet. This slight amount of water and slippery left-over from the cleaner is accumulating in the little wheel slots you see marked above. That then causes traction issues the next time it wants to leave the base.

The Fix

Effectively this issue also goes away by constantly cleaning the base and so making sure that there is no residue of slippery stuff in there. But since I’m a super lazy person (I mean, that’s why I bought it in the first place), I came up with this little fix:

home base fixed

Yes, toilet paper and transparent tape. It’s simple: take a sheet of toilet paper, tear it in half, fold it and put tape over it.

Alternatively use a bit of cardboard, anything that keeps the hole level will work. Depending on the toilet paper you have at hand, this might also dent over time and you’ll have the same issue once again.

It’s fine when it actually creates a little bump, Braava will drive over it and still charge just fine:

going home

Hope it helps!

Cheers,
Thomas


Thomas Jungblut

I'm Thomas Jungblut - welcome to my personal blog. Here you'll find a lot of posts around all the things I'm interested in writing about. Big Data, Bulk Synchronous Parallel, MapReduce, Machine Learning, Clustering, Graph Theory, Natural Language Processing, Computer Science and Open Source in general.

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