Pneumatic ram > Rear bolt?
Printed From: Tippmann Paintball
Category: Tippmann Paintball
Forum Name: Paintball Ideas / News From Tippmann
Forum Description: Got a new idea or a way to improve something?
URL: http://www.tippmannsports.com/forum/wwf77a/forum_posts.asp?TID=109076
Printed Date: 22 December 2024 at 7:10pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Pneumatic ram > Rear bolt?
Posted By: maroon out
Subject: Pneumatic ram > Rear bolt?
Date Posted: 02 August 2004 at 12:27pm
|
The basic idea would be to replace the ram assembly (rear bolt, drive spring, drive pin) with a pneumatic ram, much like the one the RT, except much larger.
Then rig up a cocker 3-way to the trigger, and an LPR to the bottom line. Hook it all together, and when you pull the trigger, the 3-way moves, directing air to the back of the cylinder, shooting it forward to activate the valve pin. Viola! An insanely light trigger pull I'm not exactly sure how much force is needed to depress the valve pin, but a 7/8" cylinder (closest to inside diameter of the receiver halves I could find) operating at 250psi (max for the Clippard cylinder I was looking at) could deliver up to 102 lbs of force. And that sounds like plenty to me. Pros: Lighter trigger pull (depends on what kind of trigger return spring is required). Noticeably less kick. Velocity could be controlled by changing the pressure of the LPR, which would change the force of the piston in the ram. No more messing with drive springs, sear's, and sear springs. Cons: The ram. If you used a ram that is double-acting (moves back and forth only using air), you’d probably need to use a pretty heavy trigger return spring, or the holding down the trigger would keep the valve open. And if you used a single acting ram (moves forward by air, uses a spring inside the cylinder to return), you rate of fire would be limited because the spring wouldn’t be able to return as fast as a double-acting ram could. Sorta like the same problem with the E-bolt. Right now I don't know how the linkage arm would be attached to the piston, but I'm sure it couldn't be too hard. Let me know what you think. P.S. If anyone feels like parting with any cheap 3-way and/or LPR, let me know.  ------------- Watch your thoughts they become words Watch your words they become actions Watch your actions they become habits Watch your habits they become character Watch your character it becomes your destin |
Replies:
Posted By: Enos Shenk
Date Posted: 02 August 2004 at 2:16pm
|
Sounds like the e-bolt Ive considered something like that for a carbine just using a custom machined end cap threaded for a ram, and some sort of ebolt style hammer piece. ------------- 
|
Posted By: maroon out
Date Posted: 02 August 2004 at 2:48pm
Except this would be completly void of electronics, batteries, and other such nonsense. ------------- Watch your thoughts they become words Watch your words they become actions Watch your actions they become habits Watch your habits they become character Watch your character it becomes your destin |
Enos Shenk wrote:Posted By: ziggymarley
Date Posted: 03 August 2004 at 12:59am
|
hmm...wasnt there a mod someone did with a 3way on a 98 before? gonna do a search... ------------- "Real markers have gills." "son of a <KRL>." |
Posted By: Monk
Date Posted: 03 August 2004 at 11:32am
| You could do the same thing but instead of it hitting the valve it could move a faux trigger that then ingages the sear. But the problem is finding a small pneumatic ram. |
Posted By: Enos Shenk
Date Posted: 03 August 2004 at 11:50am
http://www.clippard.com/store/display_details.asp?sku=SM-2 - http://www.clippard.com/store/display_details.asp?sku=SM-2 Or not. -------------
|
Posted By: Monk
Date Posted: 03 August 2004 at 12:16pm
| ^^^Sweet^^^ |
Posted By: maroon out
Date Posted: 03 August 2004 at 1:25pm
|
Here's the one I was looking at.
http://www.clippard.com/store/byo_cylinder/byo_stainless_details.asp?sku=UDR-14-1 - http://www.clippard.com/store/byo_cylinder/byo_stainless_det ails.asp?sku=UDR-14-1 ------------- Watch your thoughts they become words Watch your words they become actions Watch your actions they become habits Watch your habits they become character Watch your character it becomes your destin |
Posted By: hashi2008
Date Posted: 03 August 2004 at 7:21pm
|
Hmm. I like it, but for now, ill stick with my gun as is (no electronics or complicated/new ideas or concepts to it). ------------- Founder of the "Forumers Against the Ugly Woman Sigs" also known as FAUWS. |
Posted By: Enos Shenk
Date Posted: 03 August 2004 at 7:32pm
You realize that has a 1 inch stroke, and the cylinder is almost 4 inches long right? -------------
|
Posted By: maroon out
Date Posted: 03 August 2004 at 9:47pm
|
Yes I realize that, but if I was going to some how attach the front bolt to the piston, the stroke would HAVE to be 1" (or somewhere around that). If the stroke was shorter than 1", it either wouldn't load the paint, or it wouldn't push the paint far enough into the barrel. ------------- Watch your thoughts they become words Watch your words they become actions Watch your actions they become habits Watch your habits they become character Watch your character it becomes your destin |
Posted By: coolmite
Date Posted: 05 August 2004 at 2:35am
|
You might want to PM " Natural Newbie " about this one . I think he already did this to a 98 , 'cept he used a 4-way to power the RT also , I believe . Or maybe it was " Milkman " , I can't remember .
------------- 98 Custom Sys-X 14in. 1 piece barrel 32* "Bob Long" ex-chamber Tipp. double trigger Ghetto(TM) trigger stop Swivel-drop (unknown maker) Tasco 30mm red dot sight Years of repressed anger ! |
