pic: 4901 won't run out of air this season. That's for sure.

[JohnFogarty]

We did a lot of math on the volume of air our Cylinders use per stroke and we found that an air tank with volume like this is almost a necessity.

The tank is 15 LBS. (I am aware of the light weight version at harbor freight and we'll keep that in mind if weight is problem, which at the moment our robot is about 30 pounds under weight without the tank on.

Our plan was to use the compressor off-board. If we needed extra weight...on it would go. The compressor is also roughly 15 pounds.

100% Duty cycle at 100 PSI. Charge time is 5 minutes from empty to full. We don't need to empty the system after every match. We would only do so in the times where we needed to. I also checked the rules for that.

[Lemon]

Well I guess we aren't the only team going with a lot of air this year, although we do have you beat by one gallon

[orangemoore]

Originally Posted by JohnFogarty

We did a lot of math on the volume of air our Cylinders use per stroke and we found that an air tank with volume like this is almost a necessity.

The tank is 15 LBS. (I am aware of the light weight version at harbor freight and we'll keep that in mind if weight is problem, which at the moment our robot is about 30 pounds under weight without the tank on.

Our plan was to use the compressor off-board. If we needed extra weight...on it would go. The compressor is also roughly 15 pounds.

100% Duty cycle at 100 PSI. Charge time is 5 minutes from empty to full. We don't need to empty the system after every match. We would only do so in the times where we needed to. I also checked the rules for that.

Finals Could Be a problem if you have to fix something during that time.

[JohnFogarty]

Originally Posted by orangemoore

Finals Could Be a problem if you have to fix something during that time.

Having been through elims at orlando last year, I think we should be fine. We wouldn't need a full charge to be effective either. The number of actuations we get from a half charge is at the minimum of what we'd need to score around 100+ points by ourselves.

Our goal with this design was extreme simplicity and speed. Come reveal night you should see that we've achieved just that.

[GeeTwo]

Originally Posted by JohnFogarty

100% Duty cycle at 100 PSI. Charge time is 5 minutes from empty to full. We don't need to empty the system after every match. We would only do so in the times where we needed to. I also checked the rules for that.

Cool - when I looked for Ultimate Ascent (our primary climber actuators were pneumatic, as well as the "trigger" for the frisbee thrower), the only 100% duty cycle compressors I found were significantly larger.

[JohnFogarty]

Originally Posted by GeeTwo

Cool - when I looked for Ultimate Ascent (our primary climber actuators were pneumatic, as well as the "trigger" for the frisbee thrower), the only 100% duty cycle compressors I found were significantly larger.

I did a search on compressors on CD and found this thread http://www.chiefdelphi.com/forums/sh...d.php?t=129321 easily which had a spreadsheet that gave a lot of useful info that helped us decide on the compressor.

[MrForbes]

Inspection will be fun, you get to wait around for the compressor to refill the tank.....

Sounds like a neat robot, hopefully we'll see some video soon!

[chapman1]

Well done! Tongue in cheek is sorely lacking not only in today's world, but also in FRC

[Sperkowsky]

we may use this as mass air storage for a t-shirt cannon. Could you explain how you set it up

Thanks - Sam

[JohnFogarty]

Originally Posted by Sperkowsky

we may use this as mass air storage for a t-shirt cannon. Could you explain how you set it up

Thanks - Sam

The air tank comes with a bronze output fitting. That fitting has two outputs on it one 1/4 NPT port and one 1/8 NPT port where the gauge is normally. We simply plugged the 1/4 NPT output and then put a fitting into the 1/8 NPT output to allow for use with the pneumatic tubing allowed within the rules.

Funny enough. We now use a 7 Gallon Aluminum air tank on our bot.