How much compression is too much

Is this enough compression? I noticed that this amount of compression has trouble holding 6 cubes. Would I need to increase compression sl that the intake can hold more cubes? 20200206_170023
20200206_170027

Your problem is not compression, your arms are opening up more than your hinges. They should stay parallel even when there’s cubes in them. The pic looks like they’re opening up when a cube enters. Could you send more pictures? Specifically of the rest of the arms, and a full shot of your robot. Also, maybe use the small flaps, in my experience, they work better.

4 Likes

I can send some more pictures later, thanks for the advice.

Great, also I would recommend boxing your arms. I can send you some pictures of my arms as well. There’s a few things there you could apply here. I can send those around 3:20 - 4:00 EST.

I would suggest that you have small flaps to get more treads to the cubes.

These are boxed C-channels, a buddy of mine didn’t have these and eventually they snapped under the forces they were subjected to.

IMG_20200207_154553257

IMG_20200207_154550097

IMG_20200207_154238165

the standoff at the back of my arms helps to stop them from widening at the front, this will also help your design.

IMG_20200207_154137494

These bars also keep the arms rigid in the down position. You might not need these, and they’re kinda jank. So only use this method as a last resort.

IMG_20200207_154131282

2 Likes

A lot of other topics say that moving the intakes closer together and using the small flaps helps compression a lot, you may want that.

Here are some other pictures
20200207_155727 20200207_155809 20200207_155911 20200207_155929 20200207_155853 20200207_155641

I would try adding bracing between your two arms. The arms you have will have a lot of slop, this will make compression bad and inconsistent. If you brace them in between at two points, they should not move nearly as much.

1 Like