Author Topic: ...wing jigs... (Read 4770 times)

Bootlegger · « **on:** February 18, 2017, 05:02:03 PM »

I picked up an adjusto jig and wanted to see who else uses one and how do you like it?

Do you have any suggestions/advice on using one?

Thanks

Will Davis · « **Reply #1 on:** February 18, 2017, 05:09:41 PM »

The only wing jig I use, 25 plus years.. Good jig

I do not use the rib drill out fixture, just draw a centerline in rib, mark the holes by measuring from rear of rib and cut individual holes .

eric rule · « **Reply #2 on:** February 19, 2017, 11:41:33 AM »

I've used the Adjust-O-Jig for years. One of the best ideas ever.

A couple of things you may wish to do to yours to make it even better.
1) Unless you plan to build dihedral wings make sure you lock the bottom bar at the hinge. A simple way to do this which allows you to change back to standard for building dihedral wings is to install a metal bar that is locked to the bottom bars using bolts. Easy to remove it needed yet very solid otherwise.
2) get some "thinserts" And install them in the galvanized pipe. The threads in the thin wall pipe will rip out if you over tighten the pipe bolts.
3) Since many of the models we build will have fairly long ribs you will want to make up a number of extensions to allow you to create a third line jig jig holes in the wing to support them. I used 1/8 plywood sticks 1/2" high and 7" long. Three holes drilled along the center line at 2" intervals allow you to suspend a third rod out in space. This helps keep everything properly aligned.

Eric

frank williams · « **Reply #3 on:** February 19, 2017, 01:44:29 PM »

I've been using hardwood 1x2's

Randy Cuberly · « **Reply #4 on:** February 19, 2017, 04:36:16 PM »

I've been using Ajusto-Jigs For over 25 years. It's the only jig I use except Hunts Lost Foam Jigs.

I strongly recommend mounting the Jig on a piece of 3/4 inch plywood and screwing two long pieces of heavy angle iron to the bottom. This makes the jig much steadier to work on and prevents warping of the base that can make it unsteady. I also caution you not to tighten the end screws that allow the jig to rotate. too much or the plastic can break!

I also recommend not using the drill templates for rib positioning they wear out quickly and then the holes in the ribs can be too loose and/or misplaced. The method I use that works very well is to carefully stack the ribs together according to a common reference like the trailing edge if the trailing edge is straight or spar notches if they are aligned and pin the ribs together by driving T-pins through the ribs (from both sides if necessary). Mark the location of the necessary locating holes on the outside rib (I do this by holding the last rib against one of the rib locators on the jig). Then drill the jig wire holes with a drill Press. If the pins interfere with getting the ribs to lay flat simply use a piece of hardwood or flat plywood with holes drilled where the pins are located, on the drill press and place the ribs on the wood with the pins over the holes.
Do all of this very carefully and you will have a very nice straight wing.

Randy Cuberly

Target · « **Reply #5 on:** February 20, 2017, 12:22:26 PM »

Where do you buy an Adjust-o-jig?

Bootlegger · « **Reply #6 on:** February 20, 2017, 05:15:31 PM »

Chris I sent you a private message...

Bootlegger · « **Reply #7 on:** February 22, 2017, 05:41:03 AM »

Eric Rule, I sent ya a private message..

Target · « **Reply #8 on:** February 22, 2017, 07:34:23 AM »

What diameter are the rods that run through the ribs?
Thanks.

Bootlegger · « **Reply #9 on:** February 22, 2017, 02:09:00 PM »

Chris, the rods are 5/32" in diameter, hope that this helps...

Target · « **Reply #10 on:** February 22, 2017, 10:29:56 PM »

Gil, yes, thanks. That helps.
I have a line on two adjusto-jigs, but they are missing the rods.

Randy Cuberly · « **Reply #11 on:** February 23, 2017, 07:04:34 PM »

Quote from: Chris Behm on February 22, 2017, 10:29:56 PM

Gil, yes, thanks. That helps.
I have a line on two adjusto-jigs, but they are missing the rods.

They're just 5/32nd music wire. I've replaced a couple of them on one of mine due to rusting. They're usually available at the local hobby shop, or Michaels!

Randy Cuberly

RK · « **Reply #12 on:** February 23, 2017, 08:09:15 PM »

OK I've been looking for a good wing jig.....Where Can I buy one?

Thanks RK Flyer

Leester · « **Reply #13 on:** February 24, 2017, 06:38:24 AM »

These are no longer in production, Put a want add in the classifieds. There are some around you just have to find one in good shape.

peabody · « **Reply #14 on:** February 24, 2017, 06:55:12 AM »

John D'Ottavio came to GSCB meeting almost 30 years ago and explained that he built most of his wings on a 2" X 8 piece o pine and eyeballed them straight...

john e. holliday · « **Reply #15 on:** February 24, 2017, 12:42:48 PM »

Some of the straightest wing that I have built were done with out a jig. Using straight pins, rubber bands and tape. The advent of CA is what really helps to a point.

Tony Drago · « **Reply #16 on:** February 27, 2017, 10:18:10 AM »

Some one want to float me a loan? Granted it's new in the box.
On Ebay
A-Justo-Jig ------ Wing Jig ------ Unused
Unused http://r.ebay.com/qmAyQ9

Mike Griffin · « **Reply #17 on:** February 27, 2017, 11:16:27 AM »

Quote from: Tony Drago on February 27, 2017, 10:18:10 AM

Some one want to float me a loan? Granted it's new in the box.
On Ebay
A-Justo-Jig ------ Wing Jig ------ Unused
Unused http://r.ebay.com/qmAyQ9

Tony I went to that link and could not believe that price. People have lost their minds.

Mike

Randy Cuberly · « **Reply #18 on:** February 27, 2017, 11:28:09 AM »

Quote from: Tony Drago on February 27, 2017, 10:18:10 AM

Some one want to float me a loan? Granted it's new in the box.
On Ebay
A-Justo-Jig ------ Wing Jig ------ Unused
Unused http://r.ebay.com/qmAyQ9

That's positively crazy. I guess it's true that some people have a lot more money than brains!

Randy Cuberly

Tony Drago · « **Reply #19 on:** February 27, 2017, 12:52:15 PM »

I agree. Wonder what it would cost to reproduce one.

Tony Drago · « **Reply #20 on:** February 27, 2017, 12:54:01 PM »

Quote from: Mike Griffin on February 27, 2017, 11:16:27 AM

Tony I went to that link and could not believe that price. People have lost their minds.

Mike

At least the S&H is free.

Allan Perret · « **Reply #21 on:** February 27, 2017, 01:19:07 PM »

Quote from: Tony Drago on February 27, 2017, 12:52:15 PM

I agree. Wonder what it would cost to reproduce one.

That concept could be duplicated for $60~$70 in materials. Using 5/16" arrowshafts would only need 3 supports per wing panel instead of supports between every rib.

Randy Cuberly · « **Reply #22 on:** February 27, 2017, 03:51:24 PM »

Quote from: Allan Perret on February 27, 2017, 01:19:07 PM

That concept could be duplicated for $60~$70 in materials. Using 5/16" arrowshafts would only need 3 supports per wing panel instead of supports between every rib.

Well yes but I think you would be losing one of the best features of the Ajusto Jig, which is the fact that the all wing ribs are held tightly in three axis throughout the build including the application of the sheeting of the LE and TE.

I agree that the materials should not cost more than about $60 maybe considerably less. If the materials were purchased in advance for 20 or so Jigs I would think it could be considerably less! Most of the Jig could be built from plywood except the main tube that holds the rib supports and it's just 1" aluminum tube, and the jig rods which are 5/32 music wire!

Randy Cuberly

eric rule · « **Reply #23 on:** February 28, 2017, 10:16:59 AM »

You should check out the pictures of the wing jig in Mike Griffin's vendor corner (Griffin Building Service).

What Mike is showing is my rendition of an Adjust-O-Jig. The uprights extend above and below the ribs so all you have to do is turn the jig upside down in order to finish the wing. Like all jigs it is designed to keep the leading and trailing edges on the same plane through out the building process. It may not be pretty or sparkle or cost an arm and a leg ....BUT IT WORKS!

Tony Drago · « **Reply #24 on:** February 28, 2017, 10:43:15 AM »

Eric.
So you finally found a good use for all those extra landing gear blocks.
Seriously, I like the concept. Do you sell these.I looked on your web site and could not find it.

peabody · « **Reply #25 on:** February 28, 2017, 02:19:05 PM »

Windy had aluminum end pieces, drilled and glued to a piece of marble......used 3/8" stainless rods.....always waxed the rods....there are videos with the process.

Have fun!