Having had the opportunity to check out 1114’s robot at the Pittsburgh Regional this weekend, they had pneumatic tanks that appeared to be made of a plastic, and I was told they were about half the weight of the standard Clippard tanks. Anyone know where to find these, or something like them?
They are the same tanks we are using. 1114 found them and shared the information with us. We are using 8 of them with no pump. When using the off board pump it takes us almost 7 minutes to fill to 120psi.
According to he Pnueaire Tech rep, they are available in both 1/8" and 1/4" NPT. Burst pressure is rated at 500psi, and working pressure at 125 psi. A no brainer if you want, or need to, save some weight. Also relatively inexpensive, and have plastic mounting brackets available as well.
No problem. You guys were so close on weight, and air is so critical to your design, it seemed like the right thing to do. One of the college students that helped found your team was a former 33 student, so we have carried a soft spot for your team for years.
Pneuaire seems to have several websites selling their reservoir cartridges (www.smcpneumatics.com, www.coastpneumatics.com, www.poweraire.com; they share the same “online support” image and similar addresses). Their other websites indicate that the RC2.5x10 is actually ~30 cubic inches. But when 8 of these tanks requires 7 minutes to fill, the difference between 30 and 44 doesn’t seem like much. =P
I could be wrong, but the Clippard tank provided in the KOP is listed at 33 cu. in., making the plastic tank capacity about 25% greater. Anyone know for sure the weights of the plastic Pneuaire tank and the aluminum Clippard tank for comparison?
Just for additional consideration, in a long-term installation, I would prefer to use aluminum tanks. Plastic, over time, tends to creep and weaken, which should not be a problem on a FIRST robot.
I called this company to try to place an order. They said that since I’m in Canada I had to pay by wire transfer rather than simply by credit card. Hardly the response I’d expected. Have these guys been living under a rock for the last decade or two???