Home Tournaments Calendar Weather Merchandise Sponsors

Go Back   Spearboard.com - The World's Largest Spearfishing Diving Boating Social Media Forum > Spearfishing Gear > All About Guns

All About Guns What's your weapon of choice, and why? Discuss the beloved speargun here!

Reply
 
Thread Tools Rate Thread Display Modes
Old 07-04-2017, 04:28 AM   #1
Ater22
Registered User
 
Join Date: May 2017
Location: 29 Palms
Posts: 45
Rob Allen Roller gun problem

My Rob allen roller gun's bands keep Popping off at the anchor point when I fire the gun. Anyone know how to prevent this? Make the wishbones smaller maybe?
Ater22 is offline   Reply With Quote
Old 07-04-2017, 07:59 AM   #2
RBainer
Registered User
 
RBainer's Avatar
 
Join Date: Aug 2014
Location: lake worth
Posts: 293
Re: Rob Allen Roller gun problem

any pictures to see how it is currently setup ?
__________________

FII. Level 2 Cert
50M Diver
RBainer is offline   Reply With Quote
Old 07-04-2017, 09:30 AM   #3
Ater22
Registered User
 
Join Date: May 2017
Location: 29 Palms
Posts: 45
Re: Rob Allen Roller gun problem

Here's a picture off google, can't get to my gun right now but it's set up the same
Attached Thumbnails
Click image for larger version

Name:	IMG_3687.JPG
Views:	202
Size:	33.2 KB
ID:	234220  
Ater22 is offline   Reply With Quote
Old 07-04-2017, 12:32 PM   #4
RBainer
Registered User
 
RBainer's Avatar
 
Join Date: Aug 2014
Location: lake worth
Posts: 293
Re: Rob Allen Roller gun problem

seems like there you may need to pre-tension that band more
__________________

FII. Level 2 Cert
50M Diver
RBainer is offline   Reply With Quote
Old 07-04-2017, 01:38 PM   #5
apeogre
Registered User
 
apeogre's Avatar
 
Join Date: May 2010
Posts: 447
Re: Rob Allen Roller gun problem

Does it come off before or after you fire?
apeogre is offline   Reply With Quote
Old 07-04-2017, 01:48 PM   #6
phil herranen
Registered User
 
phil herranen's Avatar
 
Join Date: Apr 2007
Location: santa cruz
Age: 48
Posts: 5,473
Re: Rob Allen Roller gun problem

More pre tension, when you fire a roller ,after the shot there will be a shock wave that travels back and forth a couple times and will kick the band's off , so ether more tension or tighter loops on the anchors
__________________





frv owners discount http://spearboard.com/showthread.php?t=134606
phil herranen is offline   Reply With Quote
Old 07-04-2017, 05:46 PM   #7
Ater22
Registered User
 
Join Date: May 2017
Location: 29 Palms
Posts: 45
Re: Rob Allen Roller gun problem

Quote:
Originally Posted by phil herranen View Post
More pre tension, when you fire a roller ,after the shot there will be a shock wave that travels back and forth a couple times and will kick the band's off , so ether more tension or tighter loops on the anchors
Solid advice. Thank you
Ater22 is offline   Reply With Quote
Old 07-04-2017, 05:47 PM   #8
Ater22
Registered User
 
Join Date: May 2017
Location: 29 Palms
Posts: 45
Re: Rob Allen Roller gun problem

Quote:
Originally Posted by apeogre View Post
Does it come off before or after you fire?
After
Ater22 is offline   Reply With Quote
Old 07-04-2017, 07:29 PM   #9
willstroo
Registered User
 
willstroo's Avatar
 
Join Date: Apr 2014
Location: Sydney, NSW
Posts: 168
Re: Rob Allen Roller gun problem

Just wrap the loop over the pin twice if you don't want to add more pretension.

But the whole point of the roller is to have some good pretension so that you are getting power right to the tip of the speargun, crank that bad boy up!
willstroo is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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

Forum Jump


All times are GMT -5. The time now is 02:13 AM.


The World's Largest Spearfishing Diving Social Media Forum Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2002 - 2014 Spearboard.com