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Harbor Freight Riveter/how to alter nose piece

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n4546v(at)mindspring.com
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Posted: Fri Oct 15, 2010 8:02 am Post subject: Harbor Freight Riveter/how to alter nose piece

do not archive

  

 Here's one from the archives:

  

 I am wondering the best way to modify the head for the domed rivets.   What

is the best way to do this???



From the Zenith  archives:



The Dremel works fine and fast, use a small green round ball  (silicon

carbide) or any other stone that has a point or round end, Put the  riviet

gun head in the lathe chuck and while spinning it, fire off the  moto-tool,

hold it with both hands braced against whatever is nearby, and  shape the end

in a nice conical shape, starting from the hole in the center  and working

outward, keep the cone shallow, you can always go deeper.   No gottem lathe?

Sure you do, put your fastest turning pistol grip drill  motor in your

workbench vise, usually upside down with pistol grip up, (up is  towards the

sky for you airplane builders!) tighten vise enough to hold drill  case, not

crushing it where the armature will never turn again!  Place  the rivet head

in the drill chuck and lock the trigger back and grind  away.  Takes longer

to describe than to do, finish with emery cloth if  your stones grind course.

Hope this helps.

Regards,

Randy, Las Vegas,  701/plans



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tigerrick(at)mindspring.c
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Posted: Fri Oct 15, 2010 9:55 am Post subject: Harbor Freight Riveter/how to alter nose piece

Jeez, I feel so low tech!



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tigerrick(at)mindspring.c
Guest

Posted: Fri Oct 15, 2010 10:52 am Post subject: Harbor Freight Riveter/how to alter nose piece

There was supposed to be more to that post!



I ended up making the initial dome in the nosepiece from simply and carefully starting with the tip of a suitable drill bit chucked up in a drill press, with the nosepiece firmly held in a vise on the stage. Final finish was easy with the nosepiece lightly chucked in the drill press, and a bit of emery cloth applied to the dome.



Am I making it too simple?



Rick



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Z601c(at)anemicaardvark.c
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Posted: Fri Oct 15, 2010 11:11 am Post subject: Harbor Freight Riveter/how to alter nose piece

I don't think so. I've been wondering why everyone went to so much trouble, 

but was reluctant to comment. 



I bought the pneumatic riveter from Zenith, and had no problems. However, I 

modified a hand pop riveter to pull rivets in tight areas. For it, I installed 

the head in the hand held riveter, and carefully installed it in a drill vise, 

with the head facing upwards.



I picked a drill bit whose end seemed to be a reasonable match to the 

curvature of the Zenith heads. I cut away metal from the head in the hand 

riveter, until it looked like a reasonable match for the Zenith head.  I've 

been using that to pull the hard to reach rivets without difficulty (other than 

my hands cramping, etc).



The emery cloth would have been a good idea, but for whatever reason, I didn't 

think of it.



It might be worth mentioning that I cut away parts of the hand riveter, so it 

would fit in some of those tight places.



On Friday 15 October 2010 13:49:49 you wrote:

 	  Quote: 	
		   

 <tigerrick(at)mindspring.com>

 

 There was supposed to be more to that post!

 

 I ended up making the initial dome in the nosepiece from simply and

 carefully starting with the tip of a suitable drill bit chucked up in a

 drill press, with the nosepiece firmly held in a vise on the stage. Final

 finish was easy with the nosepiece lightly chucked in the drill press, and

 a bit of emery cloth applied to the dome.

 

 Am I making it too simple?


	


<snip of previous emails>

-- 

========================================

                                       Jim B. Belcher

                              BS,MS Physics, Math, Computer Science

                                            A&P/IA

                             General Radio Telephone Certificate

                                   Instrument Rated Pilot

                           Retired Aerospace Technical Manager

                        

========================================

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n4546v(at)mindspring.com
Guest

Posted: Fri Oct 15, 2010 11:24 am Post subject: Harbor Freight Riveter/how to alter nose piece

do not archive



Hey Rick:



Your method is simple and completely legal as sanctioned by the Kitchen Sink 

Technology Institute.



Where a problem could arise is if one runs into heat treated nose pieces. 

They could be case hardened (a very hard skin say .008" deep) or through 

hardened.  I don't know if any are.  But if they are, both heat treat 

methods could be as hard or harder than your HSS drill.  Abrasives don't 

care about steel hardness for the most part.



Regards,



Randy, Las Vegas

 	  Quote: 	
		   

 <tigerrick(at)mindspring.com>



 There was supposed to be more to that post!



 I ended up making the initial dome in the nosepiece from simply and 

 carefully starting with the tip of a suitable drill bit chucked up in a 

 drill press, with the nosepiece firmly held in a vise on the stage. Final 

 finish was easy with the nosepiece lightly chucked in the drill press, and 

 a bit of emery cloth applied to the dome.



 Am I making it too simple?



 Rick

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tigerrick(at)mindspring.c
Guest

Posted: Fri Oct 15, 2010 11:58 am Post subject: Harbor Freight Riveter/how to alter nose piece

do not archive



Given the "bargain" nature of the Chinese made, disposable tools we're working with here, cutting into the nosepiece was a snap. Even the chrome plating didn't slow down the cutting of the bit much. But OK. I did cheat and use some cutting oil.



As soft as the nosepieces are, the rivets are even softer! Good thing!



Rick



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psm(at)att.net
Guest

Posted: Fri Oct 15, 2010 1:47 pm Post subject: Harbor Freight Riveter/how to alter nose piece

Hi Rick,



This has been a wonderful exchange.  It shows that there are no right or wrong answers to some of the challenges we face as isolated builders.



I think the nose piece modification demonstrates how this really is a learning experience for all of us.  We all used what tools we had at hand to accomplish a similar task. If the resulting rivets are set properly then we all accomplished the goal.  Bravo!



Paul

Camas, WA



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