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-   -   Pneumatics Size confusion (http://www.chiefdelphi.com/forums/showthread.php?t=33670)

fleadomofbass 18-01-2005 14:14

Maximum Piston Length
 
What is the max length you can get from first of a pneumatic piston

Josh Hambright 18-01-2005 14:32

Re: The length of My Rod
 
check http://www.bimba.com/techctr/first_free_frm.htm see exactly.

but i believe
for 3/4 Bore the max stroke is 10 inchs
and for 1 1/2" and 2" the max stroke length is 24"

dlavery 18-01-2005 14:38

Re: The length of My Rod
 
See page 19 of the Pneumatics Manual.

Mark Pettit 18-01-2005 14:39

Re: The length of My Rod
 
Quote:

Originally Posted by oneangrydwarf

for 3/4 Bore the max stroke is 10 inchs
and for 1 1/2" and 2" the max stroke length is 24"

'1-1/2" bore only goes to 11" stroke.

The order form is on the last page of the Pneumatics Manual.
It's at: http://www2.usfirst.org/2005comp/Man...ticsManual.pdf

Josh Hambright 18-01-2005 16:37

Re: Maximum Piston Length
 
i was going off the bimba website, which lists upto a 24" stroke length for the 1 1/2" bore size. The last page of the manual says to check the website for available stroke lengths for each bore size.

ewankoff 22-01-2005 10:59

piston limitations
 
are there any limitations on the size of the pistons?

ewankoff 22-01-2005 12:00

Re: Maximum Piston Length
 
is a 1 and 1/16 inch bore and 24inch stroke piston allowd?

Josh Hambright 22-01-2005 13:21

Re: Maximum Piston Length
 
Quote:

You have a choice of 3/4" bore, 1 1/2" bore and 2" bore. You can order the amount of stroke you require
Page #7 of the pneumatics manual.

See above for the available stroke lengths in each bore.

Projectchon 22-01-2005 18:16

Re: piston limitations
 
for this year,can we use pistons out side of the kit?

dez250 22-01-2005 18:29

Re: piston limitations
 
Please see page 19 of the Pneumatics Manual for all the cylinders and other pneumatic components (other then fitting and tubing) you can use on your 2005 FRC competition robot. <R91> also allows the TI Pressure Transducer and single action solenoid from the 2004 FRC KOP as legal for use this year. But other then those cylinders ["pistons"] on the pneumatics order form for this year, no you can not use cylinders from out side of the 2005 FRC Kit Of Parts.

Jeffrafa 23-01-2005 06:57

Re: Maximum Piston Length / piston limitations
 
Just a note, the order form on page 19 of the pneumatics manual does not list 24" for a stroke length for the 1-1/2" bore, but it also says "Please check the Bimba web site for available strokes in each bore size". Page 7 of the pneumatics manual also says "You can order the amount of stroke you require.", implying you can get whatever stroke you need (of course assuming its avalible). As said by oneangrydwarf the bimba site does list 24" stroke cylinders in 1-1/2" bore, which means you can get it.

Also, rule <R91> says you may use last year's kit pneumatic cylinders and solenoid valves - last year our team recieved two 24" stroke 1-1/2" bore cylinders as part of our 3 free cylinders, meaning we can use these because the rule says any cylinder avalible in the kit last year is also legal this year.

Phil Paspalas 24-01-2005 10:51

Limitations on Pneumatic Cylinders.
 
:eek:
I've searched this site and read the rules and pneumatics manual over and over again. Can anyone answer this question once and for all?

Can a team use a piston other than the ones offered for free by Bimba? For instance: Bimba make a 1 1/16" dia. piston with a 24" stroke. Is this allowable? I understand that Bimba will only give away the ones listed on their site (3/4", 1 1/2", 2") but if we are purchasing pistons, what range of diameter are we limited to?

Thanks.

Steve W 24-01-2005 11:20

Re: Limitations on Pneumatic Cylinders.
 
This is my final answer - 3/4", 1 1/2" and 2".

dez250 24-01-2005 11:23

Re: Limitations on Pneumatic Cylinders.
 
This question has been answered many times and i will answer it again.

You have the choice from three (3) different bore sizes [piston diameters] to choose from and use this year on your 2005 FRC competition Robot. These three bore sizes are 3/4", 1-1/2" and 2".

Quote:

Originally Posted by 2005 FRC Pneumatics Manual, Pg. 7
CUSTOM BIMBA CYLINDERS You will again be able to order custom cylinders for your robot again this year. You have a choice of 3/4” bore (diameter), 1-1/2” bore and 2” bore. You can order the amount of stroke you require.

You can find the strokes available for these three bores on page 19 of the 2005 FRC Pneumatics Manual

Phil Paspalas 24-01-2005 11:41

Re: Limitations on Pneumatic Cylinders.
 
:confused:
In the spirit of gracious professionalism, Thanks!
Quote:

Originally Posted by Steve W
This is my final answer - 3/4", 1 1/2" and 2".



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