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darrellhaas(at)verizon.ne Guest
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Posted: Mon Nov 12, 2007 9:59 pm Post subject: riveter nosepiece |
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Thank you all for the information on the nosepiece.
Darrell
Do not archive.
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reinkings(at)comcast.net Guest
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Posted: Tue Nov 13, 2007 9:47 am Post subject: riveter nosepiece |
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I'm just starting when the rudder kit arrives. Inquired with ZA regarding their nosepieces. Ms. Swearingen replied that they offer their custom machined heads for the A4, A5s for $11.90 each. What advantage do their nosepieces have over the ones I got from Harbor Freight insofar as strength and aerodynamic qualities on the construction? Noted that several of the group are simply ordering replacements from Harbor for about $12.00 (for the 3 nosepieces?). Appreciate your comments AND this really helpful site.
Cordially, John Reinking, Woodinville, WA
[quote][b]
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psm(at)ATT.NET Guest
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Posted: Tue Nov 13, 2007 10:04 am Post subject: riveter nosepiece |
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Hi John,
As you guessed, you are doing a little comparison of apples to oranges.
The Zenith nose pieces have been reshaped to form a dome top on the rivets supplied in the kit. This is necessary to build your plane. You cannot use the Harbor Freight, or any other rivet setter nose piece, until you have ground the hollow shape needed. You can do this yourself or get someone like ZAC to do it for you.
The other issue is whether the reshaped nose pieces will fit your riveter. If you buy the ones from ZAC they definitely will not fit the Harbor Freight riveter (well, they might fit one or the other of the Harbor Freight riveters but certainly not both). The ones you can order from ZAC probably fit the riveter they sell.
It isn't very difficult to grind the shape needed into the nose pieces if you are oriented toward that sort of work. I have made several of them both from scratch and by grinding the nose pieces that come with various riveters. The trick is to get the final rivet produced to just fit the application without leaving the edges hanging in the air or having grooves pressed into them.
You can send your nose pieces to ZAC for grinding or perhaps do it yourself. If you are so inclined, I recommend you get a couple of the lower priced Harbor Freight pneumatic riveters and install an A4 sized nose piece in one and A5 size in the other one. You can get the riveters on sale around $25 each and this will save you from constantly changing the nose pieces. Also, the list members all seem to agree that the Harbor freight riveter is the best one available.
Good luck,
Paul
XL fuselage
At 09:45 AM 11/13/2007, you wrote:
[quote] I'm just starting when the rudder kit arrives. Inquired with ZA regarding their nosepieces. Ms. Swearingen replied that they offer their custom machined heads for the A4, A5s for $11.90 each. What advantage do their nosepieces have over the ones I got from Harbor Freight insofar as strength and aerodynamic qualities on the construction? Noted that several of the group are simply ordering replacements from Harbor for about $12.00 (for the 3 nosepieces?). Appreciate your comments AND this really helpful site.
Cordially, John Reinking, Woodinville, WA[b]
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Terry Phillips
Joined: 11 Jan 2006 Posts: 346 Location: Corvallis, MT
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Posted: Tue Nov 13, 2007 10:32 am Post subject: riveter nosepiece |
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John
The advantage of the HF nosepieces is that they will fit the HF riveter. I presume that Zenith nosepieces fit the riveter they sell. So, if you have a HF riveter, you'd best use their nosepieces.
However, the nosepieces must be machined to form the flathead rivets into ZAC's required dome shape. You can either send HF nosepieces (or those from any other riveter) to ZAC to be machined for $8/ea (<1 week turnaround), or you can machine them yourselves. If you search the archives, you can probably find some info on doing your own machining. You only need to machine the A4 and A5 nosepieces.
Terry
At 09:45 AM 11/13/2007 -0800, you wrote:
Quote: | I'm just starting when the rudder kit arrives. Inquired with ZA regarding their nosepieces. Ms. Swearingen replied that they offer their custom machined heads for the A4, A5s for $11.90 each. What advantage do their nosepieces have over the ones I got from Harbor Freight insofar as strength and aerodynamic qualities on the construction? Noted that several of the group are simply ordering replacements from Harbor for about $12.00 (for the 3 nosepieces?). Appreciate your comments AND this really helpful site.
Cordially, John Reinking, Woodinville, WA |
Terry Phillips
ttp44~at~rkymtn.net
Corvallis MT
601XL/Jab 3300 slow build kit - Rudder done--finally; working on the stab
http://www.mykitlog.com/N47TP/ [quote][b]
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_________________ Terry Phillips
Corvallis, MT
ttp44<at>rkymtn.net
Zenith 601XL/Jab 3300 slow build kit - Tail feathers done; working on the wings. |
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n4546v(at)mindspring.com Guest
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Posted: Tue Nov 13, 2007 11:33 am Post subject: riveter nosepiece |
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From the archives: do not archive
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
----- Original Message -----
From: BRIAN HOPE
Sent: Tuesday, March 21, 2000 9:43 AM
Subject: rivet gun mods
Quote: |
I have scoured the archives but can't find anything about modifying rivet
gun heads, though I seem to recall reading that a certain Dremel cutter
would do a satisfactory job.
Has anybody carried out the mods themselves and if so could they offer
some
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Quote: | advice.
Many thanks Brian Hope. Scratch building a 601 in lil'ol England, home of
the $5 per gallon Avgas !
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[quote] Subject: Re: riveter nosepiece
John
The advantage of the HF nosepieces is that they will fit the HF riveter. I presume that Zenith nosepieces fit the riveter they sell. So, if you have a HF riveter, you'd best use their nosepieces.
However, the nosepieces must be machined to form the flathead rivets into ZAC's required dome shape. You can either send HF nosepieces (or those from any other riveter) to ZAC to be machined for $8/ea (<1 week turnaround), or you can machine them yourselves. If you search the archives, you can probably find some info on doing your own machining. You only need to machine the A4 and A5 nosepieces.
Terry
[b]
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shilcom
Joined: 28 Sep 2007 Posts: 63
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Posted: Tue Nov 13, 2007 3:59 pm Post subject: riveter nosepiece |
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In my opinion this kind of advice in general can be disasterous to aircraft. Well maybe not every time, but Zenith requires a certain radius to properly seat the rivets to conform to the testing they have done on the aircraft. Grinding to "just any conical shape" migh NOT be so good. I bought mine from ZAC. If for no other reason the price is fair and done by American Craftsman. bob U.
[quote] ---
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n4546v(at)mindspring.com Guest
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Posted: Tue Nov 13, 2007 7:31 pm Post subject: riveter nosepiece |
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Hello Bob: do not archive
From your post:
"Zenith requires a certain radius"
Could you please furnish a link or reference to a Zenith source or drawing where this radius is specified?
I don't mind anyone not agreeing with my point of view, but if you're going to quote my posts, please quote accurately.
My message does not contain the phrase: "just any conical shape".
My Zenith construction manual shows a drawing depicting a conical nosepiece with no radius or depth of radius specified, with only a notation directed at the still flat edges of the nosepiece: "should not damage parts!".
Best Regards,
Randy, Las Vegas
[quote] ---
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