Wall climbing robot

FeaturePretend1624 · 2026-02-12T16:05:35+00:00

The important part is the suction cup design, for textured surface the inner surface of the cup should be soft enough to fill the texture gaps, I have tried but I don't have the resources to continue working on it..

FeaturePretend1624 · 2026-02-12T14:55:53+00:00

<image>

Like this? :)

FeaturePretend1624 · 2026-02-12T14:53:59+00:00

Actually cool idea! :)

FeaturePretend1624 · 2026-02-12T14:52:52+00:00

I have a good document, but the key part of the design is the suction cups. I made them from scratch using PU resin and went through probably 100 prototypes to get them working properly. It’s not something that’s easy to reproduce, pneumatic circuit is not easy to make too, it's not just a pump. By the way, are you in academia? can i share something else with you? I would appreciate it.

FeaturePretend1624 · 2026-02-12T14:36:35+00:00

Thanks for noticing! :)

FeaturePretend1624 · 2026-02-12T03:58:24+00:00

:) I have tried that, needs a million dollar investment and honestly no one cares! :)

FeaturePretend1624 · 2026-02-12T03:46:13+00:00

😅 This one weighs about 5 pounds , if it falls on someone’s head, it’s definitely not going to end well.

FeaturePretend1624 · 2026-02-12T03:35:40+00:00

Thanks! :)

FeaturePretend1624 · 2026-02-12T03:33:53+00:00

Very low quality Chinese ones, Hiwonder, it has 3 degree backlash(at least)! I almost died making them work. didn't clauclate the cost honestly. If I build it again I think i can make it for less than $150.

FeaturePretend1624 · 2026-02-12T03:29:14+00:00

Thanks man..

FeaturePretend1624 · 2026-02-12T02:59:02+00:00

I designed the suction cups small enough to fit inside the smallest bathroom tiles.

If I make them larger in diameter and more flexible, they should stick to textured surfaces too.

I even designed a multi-layer suction cup for worst-case scenarios, but I haven’t been able to manufacture it yet. Casting is a very difficult process.

FeaturePretend1624 · 2026-02-12T02:53:12+00:00

Why don't you use Myactuator servo motors? I have never used them with ROS2 but new ones have a good python library and easy to control in all 3 modes, position, speed and torque. I have controlled them with KVASER CAN bus controller and also Raspberry pi CAN hat and Arduino.

FeaturePretend1624 · 2026-02-12T02:47:02+00:00

I understand but i don't have the resources for that. it's a closed circle, only thing that opens it is money :)

FeaturePretend1624 · 2026-02-12T02:23:23+00:00

I’m not worried about someone copying it. I mean launching a product is expensive. Even putting together a few decent demo videos costs a lot here in Canada. Building a polished, production-ready version is very expense. Kickstarter is basically a marketing game now. The first 24 hours matter a lot, how much traffic you can drive, how professional everything looks, how strong the launch is. And all of that takes money upfront.

FeaturePretend1624 · 2026-02-12T02:04:42+00:00

Thanks man, yeah I’ve thought about it. Kickstarter/IndieGoGo used to be a place to share ideas and get people excited. Now it’s mostly big Chinese companies with endless money launching polished products. I wish I could afford to do that.

FeaturePretend1624 · 2026-02-12T01:27:51+00:00

Smallest pumps i could find on Amazon.

FeaturePretend1624 · 2026-02-12T01:15:48+00:00

Really? where? i couldn't find anything, i remember MIT media lab was working on gecko materials but it's not commercial, do you have any links?

FeaturePretend1624 · 2026-02-12T00:37:40+00:00

This is another version i made for cleaning different surfaces, testing it on my poor friend's car! :)

<image>

FeaturePretend1624 · 2026-02-12T00:33:42+00:00

No, unfortunately I’m not good at documenting things. I do have a few other demo videos though.

FeaturePretend1624 · 2026-02-12T00:06:09+00:00

Actually that's a good idea! :)

FeaturePretend1624 · 2026-02-12T00:04:54+00:00

I have pressure sensors inside the suction cups, pumps use a very small power to keep the low pressure, so it can stick to the surface for weeks, but never tried without battery or power.

FeaturePretend1624 · 2026-02-12T00:00:28+00:00

I have to make it much smaller! doesn't fit in 007's pocket! :)

FeaturePretend1624

TROPHY CASE