this post was submitted on 13 Apr 2025
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Got a robot vacuum that couldn’t climb over a particular threshold. Fortunately, it was made of wood and attached with a few screws, so I took it out. Now the robot is able to roam free. Well, now I can also see bare concrete where the threshold used to be, and that’s no good.
I went to the local hardware store and bought a slim aluminum threshold. Oh, it doesn’t fit. Well, I guess it’s time to try those cut-off wheels I got with my knock-off dremel. I reshaped both ends of the new threshold so that if fits perfectly. Time to screw it on.
Turns out, the screw holes don’t line up perfectly. Well, at least it’s held by 4 screws, but now there are also 2 vacant holes. It’s not perfect, but it is better than what I started with. I’ll count that as a win anyway.
You can buy a drill bit and add the holes you need in order to add the two missing screws...
The concrete below had some holes that I was able to use for attaching the threshold. Those holes didn’t line up perfectly with the existing holes of the prefabricated threshold, so one of them had to adapt. Drilling aluminum was a lot easier than drilling concrete, so I just went with the easier route. Just realized, that I could fill those vacant holes with fake screws to make it look nice.
you can also drill with a drill instead of a knock-off dremel
I think that was to change the shape of it
yeah no, thats right. then someone suggested they get a drill bit for the dremel and drill holes that way. I was just pointing out they could use a drill with a drill bit... forget it
I wasn't suggesting that they get a drill bit for their Dremel, just pointing out that it's possible to add the missing holes they need since from their message or seems like it's on concrete and some people don't know that it's not too complicated to drill holes in it.
aaaaaaah yes ok sorry. get a masonry drill bit. apologies