pic: Team 303 Spider Robot

[Owen Busler]

[cdm-description=photo]44012[/cdm-description]

[LiterallyMatty]

This is the only time it is acceptable to receive candy from a white van.

[Ari423]

I'm interested to see how the pneumatics will stand up to hours of continuous usage. Unless you specifically bought a compressor with a 100% duty cycle, many of the common compressors used in FIRST will only work at 10% of max efficiency after 10 minutes of continuous usage. When we bring robots to community events, we always try to bring ones without pneumatics. Otherwise, we have to give the robot frequent pneumatic cool-down breaks and even then we still sometimes melt the plastic tubing.

[Owen Busler]

This is the compressor we used:

http://team358.org/files/pneumatic/405Piston25875-03.pdf

(Thanks 358 for the spec sheet)

We have run this at multiple demos at around a 30% duty cycle for 2-4 hours with no problems. In the end it gets a little toasty, but its been working for a good 20 demos now in addition to being used many years ago on one of our competition bots.

[Ari423]

This is the compressor we used:

http://team358.org/files/pneumatic/405Piston25875-03.pdf

(Thanks 358 for the spec sheet)

We have run this at multiple demos at around a 30% duty cycle for 2-4 hours with no problems. In the end it gets a little toasty, but its been working for a good 20 demos now in addition to being used many years ago on one of our competition bots.

How do you manage a 30% duty cycle at a demo?!? We usually run at almost 100%. Granted that is a pretty small cylinder but I imagine you are firing it pretty frequently.

[Owen Busler]

That was a pretty rough estimate. We have 4 air tanks on the bot and we do some driving and disable-ing to allow the community to take a closer look at the bot. Between that and down time for batteries id say 30-40 percent is pretty accurate.