flywheel issues

[HeavyMetal974H]

So my team has a flywheel but we are having trouble with accuracy. We’ve tried changing the encoder, changing some of the programing around, and changing motors out. None of it had done much. Any other suggestions?

[mwang17]

Have you asked 974X? They have s similar concept flywheel and great accuracy.

[HeavyMetal974H]

Have you asked 974X? They have s similar concept flywheel and great accuracy.

Cyber brains have helped alot but we’re still having issues.

[Cyber_brains]

Hey,
Are you guys having vertical or horizontal accuracy issues? Both?

[Cyber_brains]

You guys also have no tread left on your wheels meaning density is going to be a much bigger factor than if you had some rubber or grippy tread. I don’t like the 5 inch wheels with dual flywheels for this reason. I think the biggest factor for you guys though is inconsistent entrance angles.This thread seems to show this problem well and how they went about solving it.

Here is something I said in a private thread that I feel could be helpful here.

To start, the most important and probably most overlooked thing is probably compression. Within a half an inch is not good enough. It has to be perfect. This is why we used 4 rather than 2 flywheels. We can simply increase the spacing between the wheels on either side to decrease the compression. The best way to tune your compression is by taking the hardest ball and softest ball you can find. if the hard one shoots shorter, decrease compression and if the soft one shoots shorter, increase compression until they both shoot the same distance.

Wheel mass is also important but can be a lot harder to perfect. Basically, more weight is better until it becomes sluggish. When your weight is right, it should just feel right. Their is not a very good way to test it. This also has to be done AFTER you get your gearing just right. We actually use small chain on our second compound gear set to get a better overall gearing and to reduce friction.

Let me know how else I can help.