Airsoft Canada
http://triggerairsoft.com/shop/

Go Back   Airsoft Canada > Discussion > Upgrades & Modifications
Home Forums Register Gallery FAQ Calendar
Retailers Community News/Info International Retailers IRC Today's Posts

''swiss cheezing'' a piston, good or bad idea?

:

Upgrades & Modifications

Reply
 
Thread Tools
Old March 14th, 2013, 18:25   #1
yan101
 
yan101's Avatar
 
Join Date: Feb 2013
Location: monteal
''swiss cheezing'' a piston, good or bad idea?

I've seen a couple of youtube video about it,
is it something worth doing?
if yes, what to expect +10fps?

is it gone reduce the ''life expectancy'' of the internal?
yan101 is offline   Reply With Quote
Old March 14th, 2013, 18:37   #2
MaciekA
 
MaciekA's Avatar
 
Join Date: Jun 2011
Location: Portland, Oregon, USA
I'm guessing you watched ASTKilo23's video, or someone who was inspired by him. If so, you should go to YouTube right now and click unsubscribe. That guy has some bizarre ideas about gearboxes and such.

Just to get this out of the way: Swiss cheesing a piston in no way, shape or form can increase your gun's velocity. If anything, you may lose some velocity if you manage to reduce the momentum of the piston due to weight loss.

Swiss cheesing is useful in AEGs where the piston return time is not fast enough to get home before the sector gear has completed a rotation. If the sector gear can rotate faster than your piston's return time, you get something called pre-engagement. This is where the sector gear interrupts the piston on its way back to the front of the cylinder and shreds through the teeth on the piston's rack.

Pre-engagement generally only happens if the piston is somehow artificially slowed down (because of binding, i.e. the piston is having trouble moving through its range of motion due to friction) or if the rate of fire of your AEG is extraordinarily high, or if the spring isn't strong enough to move the piston very fast, etc. You get the idea.

Unless you are building a very high speed build with a relatively low velocity (fps), I don't swiss cheesing your piston will not bring any benefits. It is merely a fix for pre-engagement, and if you are using a strong spring you can usually avoid pre-engagement anyway.

edit: Also note that pre-engagement generally only reduces the weight of pistons by mere grams. Most people who are cheesing their pistons are trying to fix improper feeding at rates of fire north of 35rps. Unless you are building CQB guns that are in this range of RoF or higher, you can safely avoid drilling holes in your pistons. They'll last longer.
__________________
"Mah check"

Now you know


Last edited by MaciekA; March 14th, 2013 at 18:40..
MaciekA is offline   Reply With Quote
Old March 14th, 2013, 18:51   #3
Schoolboy
 
Schoolboy's Avatar
 
Join Date: Jun 2010
Location: Vancouver
Works for me man, Heck you can even buy pistons with air-ports already pre made.
__________________
Legion XIII
Schoolboy is offline   Reply With Quote
Old March 14th, 2013, 19:26   #4
Styrak
 
Styrak's Avatar
 
Join Date: Jan 2007
Location: Saskatoon, SK
Send a message via MSN to Styrak
It will have no effect on your FPS.
__________________

Airsoft Sales and Repair/Upgrade Services
Styrak is offline   Reply With Quote
Old March 14th, 2013, 21:42   #5
ThunderCactus
Not Eye Safe, Pretty Boy Maximus on the field take his picture!
 
ThunderCactus's Avatar
 
Join Date: Feb 2007
eh, unnecessary really
ThunderCactus is offline   Reply With Quote
ReplyTop


Go Back   Airsoft Canada > Discussion > Upgrades & Modifications

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Airsoft Canada
http://triggerairsoft.com/shop/

All times are GMT -4. The time now is 06:43.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.