Rivet set caps ?

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BBerson

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Has anyone used these rivet caps? https://www.aircraftspruce.com/catalog/topages/snapsocriv.php

I am trying the avoid the rivet set from dancing off and gouging the rivet when riveting by myself with one hand on the gun and the other hand with the bucking bar. I am usually masking taping the rivet head and that helps some but not always.
I was thinking of fitting a rubber tube to the set to hold it on the skin around the rivet head then looked at these caps.
 

Pops

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Never have used them, usually like you I use masking tape. But, look like a high price each and short life. Lots of rivets in an alum airplane.
 

BBerson

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I think that was a package of ten.
Wondering if a rubber tube will work as well. I need to rivet the spar tomorrow. :pilot:
 

Angusnofangus

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I think that was a package of ten.
Wondering if a rubber tube will work as well. I need to rivet the spar tomorrow. :pilot:
I don't think rubber tube would be the same, as these things (we referred to them as condoms) are sized for each rivet snap. Like you I always used masking tape, usually two or three thicknesses. Seen guys use them, but I couldn't be bothered.
 

BBerson

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Yeah, I try different types of masking tape and various layers. It leaves the rivet anodize intact where driving bare burnishes the head. But it seems all that tape must cushion the intended blows also, sort of defeats the effort.
I usually tape about 20 in place and rapid shoot them all at once.
 

Pops

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I think that was a package of ten.
Wondering if a rubber tube will work as well. I need to rivet the spar tomorrow. :pilot:


You are correct, package of ten. Somehow I missed that. That sure helps.
 

Angusnofangus

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Yeah, I try different types of masking tape and various layers. It leaves the rivet anodize intact where driving bare burnishes the head. But it seems all that tape must cushion the intended blows also, sort of defeats the effort.
I usually tape about 20 in place and rapid shoot them all at once.
Preloading rivets in holes is certainly an effective practice, especially if you are shooting them yourself. However I would recommend using rivet tape on them instead of masking tape. Masking tape will stick around the rivet heads and its a pain to get off. Rivet tape will just zip right off as there is no adhesive in the area of the rivet heads. It will also leave your rivets looking like they've not been touched.
 

BBerson

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Yeah, the tape is a pain to get off. When you say "preloading", is that a short shot to set the rivet followed with a big burst to finish?
Never heard of rivet tape. I might stick some paper on the head to defeat the adhesive. :beer:
Also, I suspected the set cup might be worn. (from Boeing Surplus?)
So I sanded the cup inner edge radius a bit. I think that helps.
I tried the rubber hose and did not help.
 

Angusnofangus

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Yeah, the tape is a pain to get off. When you say "preloading", is that a short shot to set the rivet followed with a big burst to finish?
Never heard of rivet tape. I might stick some paper on the head to defeat the adhesive. :beer:
Also, I suspected the set cup might be worn. (from Boeing Surplus?)
So I sanded the cup inner edge radius a bit. I think that helps.
I tried the rubber hose and did not help.
By 'preloading' I mean inserting a bunch of rivets, taping them so they don't bounce out, and then blast away. Rivet tape:https://www.aircraftspruce.com/catalog/cspages/3mRivetersTape.php?clickkey=30186
 
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