festo vavle prob
 

we need help getting our festo working, we have 1 on negative and 2 on positive, and the tubing is correct, the red and blue are connected to the spike, and the tubes are connected right, the flow goes through when the manual button is turned, it works, when we press the spike the light turns on but nothing happens.. what could be wrong? i know valve spelled wrong.. i was in a rush

Re: festo vavle prob
 

doesn't anybody know? :( :confused:

Re: festo vavle prob
 

have you checked the solenoids? One could be burned out.

Re: festo vavle prob
 

im not to sure how to check if their burned out

Re: festo vavle prob
 

Replace the solenoid with a new one and see if it works. I don't know if you have any spares...

Re: festo vavle prob
 

dont have any spare festo, just switched to the dbl solenoid

Re: festo vavle prob
 

that works too

Re: festo vavle prob
 

1075 uses pneumatics extensively, and we've found the plastic festo's included in the 2005-08 KOP to be rather unreliable. They tend to break and cease functioning the fastest of all the KOP valves since 2003

Re: festo vavle prob
 

Ours didnt work either (had same problem). We ended up using the smc valves.

Re: festo vavle prob
 

Ours didn't work (exact same thing happened), so we got a replacement. The replacement had the same exact problem. So we decided to drop Festo and go for the SMC valves.

Re: festo vavle prob
 

I agree, we went through 3 Festos, dump them, go with smc!!!

Re: festo vavle prob
 

the kop solenoids don't work ever, order from festo directly.

Re: festo vavle prob
 

We've even found the metal festo's from the 2003 era to be crap too, if for no other reason than their excessively high pressure requirement to switch.

I'm totally for SMC, especially since they've stepped up in the past to give Canadian teams free cylinders in lieu of reasonable shipping time from Bimba.

Re: festo vavle prob
 

Going with the trend, we got fed up with our two festos about 2 hours before shipping and slapped on some of the SMCs and where in business

Re: festo vavle prob
 

Start with the assumption that it is dead.

Pull a replacement valve and hook it up to the same way. If the replacement valve functions, the original valve is dead. If the replacement valve doesn't function, your wiring might be bad OR the replacement might be dead as well.

We had this situation arise earlier at the competition- the piston-fired arm wouldn't extend. I had the students go thru this sort of test- and the replacement work. Therefore replace and diagnose later.

Hope you found a solution before shipping!

Re: festo vavle prob
 

Add us to the list of teams who got a bad Festo directly out-of-the-box this year. Last year's Festo works properly. If the SMC had the same Cv as the Festo then we'd switch over completely -- but alas, it doesn't.

Re: festo vavle prob
 

When you are working with the Festo Solenoids given in the kit the trick is that they only switch off when the spike is in Neutral and they will do exactly the same thing when they have current going through them no matter what the direction. You may notice that when you turn your robot off or put it in program state they do what they were not doing before hand.

They may be a bit of a pain to disconnect tubing from but if you are careful with them and know how to use them they are very reliable and can save you weight and air over the SMC doubles.

Hope this helps

-Simon