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nyterminat(at)aol.com
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 Posted: Mon Jan 28, 2008 8:43 am Post subject: Forming blocks - a 'right of passage"??? |
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John, Want to sell them when you are done?????  
do not archive
| Quote: | | Quote: | When I first decided to switch to scratch building, I thought it would be easy
to find a builder willing to pass on his old forming block when finished with
them. I was surprised when my post last year got no responses offering to sell
old forming blocks. Now I see why. Building these things is a kind of a 'right
of passage". No one should be able to say that they scratch built a plane if
they didn't have to make these things. Cutting metal and popping rivets is
easy. I find making the forming blocks much more tedious. Anyway, I am almost
done with wing forming blocks. I just have to make the relief cuts and I am
done. Lets see, there are 15 relief cuts on each block, times 18 blocks.
That's 270 relief cuts! I made a jig for my drill press and it works fine, but
its not near as quick as the oscillating spindle sander that Mark uses in his
"Scratch Built Basics" video. Ugh! I long for the day that I can pop another
rivet!
John Hines
www.johnsplane.com |
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victorbravo(at)sbcglobal.
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| Posted: Mon Jan 28, 2008 10:16 am Post subject: Forming blocks - a 'right of passage"??? |
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So... can I borrow your form blocks !?!? For me this is about flying off
of remote and short strips. I'm not a Tony Bingelis scratchbuilding purist.
jhines wrote:
| Quote: |
When I first decided to switch to scratch building, I thought it would be easy to find a builder willing to pass on his old forming block when finished with them. I was surprised when my post last year got no responses offering to sell old forming blocks. Now I see why. Building these things is a kind of a 'right of passage". No one should be able to say that they scratch built a plane if they didn't have to make these things. Cutting metal and popping rivets is easy. I find making the forming blocks much more tedious. Anyway, I am almost done with wing forming blocks. I just have to make the relief cuts and I am done. Lets see, there are 15 relief cuts on each block, times 18 blocks. That's 270 relief cuts! I made a jig for my drill press and it works fine, but its not near as quick as the oscillating spindle sander that Mark uses in his "Scratch Built Basics" video. Ugh! I long for the day that I can pop another rivet!
John Hines
www.johnsplane.com
--------
John Hines
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=160844#160844
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bill_dom(at)yahoo.com
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| Posted: Mon Jan 28, 2008 11:21 am Post subject: Forming blocks - a 'right of passage"??? |
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I've made my relief cuts with the router and a 45 degree trimming bit. It is a painless and quick operation.
However, If you make them with your router and you use them as mold to make your crimps in the manner shown in Mark's scratch building DVD, they might come out too wide. I use the ZAC crimping tool for this and the results are great.
William Dominguez
Zodiac 601XL Plans
Miami Florida
http://www.geocities.com/bill_dom
jhines <johnrhines(at)gmail.com> wrote:[quote] --> Zenith-List message posted by: "jhines"
When I first decided to switch to scratch building, I thought it would be easy to find a builder willing to pass on his old forming block when finished with them. I was surprised when my post last year got no responses offering to sell old forming blocks. Now I see [quote][b]
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Ron Lendon
Joined: 10 Jan 2006
Posts: 685
Location: Clinton Twp., MI
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| Posted: Mon Jan 28, 2008 7:00 pm Post subject: Re: Forming blocks - a 'right of passage |
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The reliefs were made using a 3/4" 24 grit barrel sander in a die grinder, took about an two hours to mark and grind em in.
YMMV
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_________________
Ron Lendon
WW Corvair with Roy's Garage 5th bearing
CH 601 XLB
N601LT - Flying
http://www.mykitlog.com/rlendon
Corvair Engine Prints:
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Jugle
Joined: 04 Aug 2007
Posts: 47
Location: Victoria, Australia
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| Posted: Tue Jan 29, 2008 2:24 pm Post subject: Re: Forming blocks - a 'right of passage |
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My form block reliefs were all done by hand. I was going to use the tapered router bit method, but I would've had to wait three or four days till I could get to a shop that had them from where I live, so I decided to start there and then.
Roughed out with a rasp, then finished with a file using an aluminum angle as a jig. See here:
http://eastcoastit.net.au/zenith/?p=58
If form blocks are a rite of passage, then I've done my time.
Glenn
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Glenn Andressen
601XL- Rudder, Stabiliser parts completed, Wing ribs, nose ribs done, 70% Fuselage parts made. |
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Kevin Bonds
Joined: 09 Jan 2006
Posts: 171
Location: Nashville, Tn
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| Posted: Tue Jan 29, 2008 6:34 pm Post subject: Forming blocks - a 'right of passage"??? |
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Don't bother with the relief cuts. You will have to finish the bend with
your hands some anyway regardless. Just get to making some parts.
jhines wrote:
| Quote: |
When I first decided to switch to scratch building, I thought it would be easy to find a builder willing to pass on his old forming block when finished with them. I was surprised when my post last year got no responses offering to sell old forming blocks. Now I see why. Building these things is a kind of a 'right of passage". No one should be able to say that they scratch built a plane if they didn't have to make these things. Cutting metal and popping rivets is
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KevinBonds
Nashville, TN
Plans-building Zenith CH601XL w/Corvair Power
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ashontz
Joined: 27 Dec 2006
Posts: 723
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| Posted: Wed Jan 30, 2008 5:15 am Post subject: Re: Forming blocks - a 'right of passage |
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| Ron Lendon wrote: | The reliefs were made using a 3/4" 24 grit barrel sander in a die grinder, took about an two hours to mark and grind em in.
YMMV |
I take it you mean two hours to do all of them on all the forms, right?
I did the same thing, I used a little barrel sander in my dremel tool. Took like 5 minutes to do one of the wing rib forms. You don't even need a template, just hold it steady.
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kmccune
Joined: 22 Sep 2007
Posts: 577
Location: Wisconsin, USA
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| Posted: Wed Jan 30, 2008 3:34 pm Post subject: Re: Forming blocks - a 'right of passage |
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I like this idea!
do not archive
[quote="bill_dom(at)yahoo.com"]I've made my relief cuts with the router and a 45 degree trimming bit. It is a painless and quick operation.
However, If you make them with your router and you use them as mold to make your crimps in the manner shown in Mark's scratch building DVD, they might come out too wide. I use the ZAC crimping tool for this and the results are great.
William Dominguez
Zodiac 601XL Plans
Miami Florida
http://www.geocities.com/bill_dom
jhines <johnrhines> wrote:[quote] --> Zenith-List message posted by: "jhines"
When I first decided to switch to scratch building, I thought it would be easy to find a builder willing to pass on his old forming block when finished with them. I was surprised when my post last year got no responses offering to sell old forming blocks. Now I see
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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_________________
“Always do what you are afraid to do.”
R.W. Emerson (1803-1882)
"Real freedom is the sustained act of being an individual." WW - 2009
"Life is a good deal...it's worth it" Feb 1969
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jhines
Joined: 14 Mar 2007
Posts: 20
Location: Bella Vista, Arkansas
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| Posted: Wed Jan 30, 2008 10:03 pm Post subject: Re: Forming blocks - a 'right of passage |
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Guys,
Here is a picture of my jig to make the relief cuts.
John Hines
www.johnsplane.com
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