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Author Topic: F4U Corsair  (Read 3376 times)
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Don McLellan
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« Reply #25 on: June 23, 2021, 11:04:51 PM »

Thanks Mike.  Now looking at how to cover it. 
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Prosper
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« Reply #26 on: June 24, 2021, 04:03:51 AM »

That's a lovely little thing Don. Does one need to be an IT expert to bridge the gap between a paper drawing or plan, and the delicate balsa shapes the machine cuts out? How is the required info fed to the craft cutter - USB link to computer, or memory stick, or whatwhich?

Stephen.
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Don McLellan
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« Reply #27 on: June 24, 2021, 02:41:44 PM »

Hi Stephen,

I'm probably the last guy who should be handing out info regarding 'how to' and craft cutters......................however:

I make an electronic drawing of the parts I want to cut out, then send this drawing to my craft cutter.  Note that my cutter plugs into my computer with a cord, so sending the info to my craft cutter is just a couple of key strokes.  My craft cutter is several years old.  The maximum width and length I can cut is not that big:  8" wide by 12" long.  Also, the maximum depth of cut I can make is .040".

Actually just remembered, my wife bought me a new, larger craft cutter for Christmas, but I have yet to open it.  (Old dog, new tricks etc...........plus brain fade......haha........).

Craft cutters will read file types other than DXF, but I have never tried using a different file type.

Tony Ross and others on this board are far more familiar with craft cutters, so please feel free to chime in.

Cheers,
Don
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pedwards2932
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« Reply #28 on: June 24, 2021, 09:17:15 PM »

I use Inkscape for tracing parts......you can bring a pdf file into Inkscape and trace it to create a .svg file that my cutter can use.  Also if you are worried about the balsa leaving dust and balsa on your platen, I have made platen out of cereal boxes and they work....cheap alternative and you can toss them when they wear out.  Make them the same width as the factory one, draw a grid on it and spray with adhesive.
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Prosper
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« Reply #29 on: June 25, 2021, 07:01:01 AM »

Thanks Don and pedwards. Intriguing stuff.

Stephen.
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Don McLellan
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« Reply #30 on: July 13, 2021, 06:15:30 PM »

Apologize for the lack of progress on my Corsair.  My printer seems to have gone on strike, so can't print any tissue.
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Don McLellan
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« Reply #31 on: July 22, 2021, 06:22:57 PM »

Strike partially over.  Did manage to print some tissue.
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PaulBrad
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« Reply #32 on: July 23, 2021, 11:41:43 AM »

As usual Don, your Corsair and printed tissue are looking terrific.

Paul Bradley
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Don McLellan
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« Reply #33 on: July 23, 2021, 02:51:42 PM »

Thank you Paul.  Now have to get busy and install the tissue.
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Sky9pilot
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« Reply #34 on: July 23, 2021, 07:54:38 PM »

Looking forward to those skins being applied!  I know it will be fantastic!
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Sky9pilot
    "If God is your Co-pilot, consider switching seats!" 
http://www.stickandtissue.com/cgi-bin/yabb2/YaBB.pl
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« Reply #35 on: July 23, 2021, 10:03:09 PM »

Lovely looking structure Don.

John
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Don McLellan
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« Reply #36 on: July 24, 2021, 09:16:42 PM »

Thanks Sky, John.  Managed to get some tissue on the fuse today.
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Sky9pilot
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« Reply #37 on: July 28, 2021, 08:35:53 PM »

Looks great Don...as expected!
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Don McLellan
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« Reply #38 on: July 31, 2021, 09:04:54 PM »

Thanks Sky! 

As mentioned, my printer is on it's last legs, so the rate at which I can print tissue is determining the speed of construction of the model.  The first pic shows the wing partially covered, with a puncture wound in the tissue.  I did the old white glue and wax paper repair, and it more or less worked (second pic).

Third and fourth pics show the wing sitting in place.  I should have outlined the '850' on the side of the fuse to make it stand out a little better.
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PaulBrad
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« Reply #39 on: August 01, 2021, 04:27:56 PM »

Looking very nice Don. The tissue repair sure looks good in the photo.

Paul Bradley
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alfakilo
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« Reply #40 on: August 01, 2021, 07:20:19 PM »

...I did the old white glue and wax paper repair...

Can you describe this repair technique? I suspect it's something I will need to know!!
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Don McLellan
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« Reply #41 on: August 01, 2021, 08:30:47 PM »

Thanks Paul.  As per usual, a carefully posed picture can hide a thousand wrinkles..............

Alfa:  I take a small amount of regular white glue, dilute it with water (at least 50/50 but in this case it was something like 25% glue/75% water), brush the diluted glue around the area of the tear (not liberally but don't skimp either; the white glue should be visible around the tear), then place a small piece of wax paper over the tear, very very lightly smoothing out the glue around the tear.  Note that the smoothing is sometimes not required.  As the glue cures, it is attracted to the wax paper, and the tear is 'healed'.  Leave the wax paper for some time, say over night, then carefully remove the wax paper. 

Have made a buck for the canopy, but not really looking forward to pulling one. 
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OZPAF
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« Reply #42 on: August 02, 2021, 04:20:49 AM »

That's a very neat repair Don. Typical of your tissue work!

John
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alfakilo
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« Reply #43 on: August 02, 2021, 05:52:47 PM »

Don...thanks much for the info. I'll try it out the next time I poke a hole where it shouldn't be!!
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Sky9pilot
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« Reply #44 on: August 02, 2021, 06:16:16 PM »

Great looking buck for the canopy Don.  I love your tear repair tip.  Thanks!
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Sky9pilot
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http://www.stickandtissue.com/cgi-bin/yabb2/YaBB.pl
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DavidJP
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« Reply #45 on: August 06, 2021, 08:09:51 AM »

Very nice (of course).  Don’t disclose the weight please. Just do not want to know. 
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Don McLellan
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« Reply #46 on: August 06, 2021, 08:06:34 PM »

Hi David,

Good to hear from you; I think the uncovered weight is around 7 grms, or maybe just under. 

Did manage to get the nose and the stab covered today.  And yes, my printer is still working to rule.  The 3rd pic shows where the nose will come apart for rubber installation and winding, and the 4th pic shows a little more detail of the rabbit on the side of the cowl. 

Don
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OZPAF
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« Reply #47 on: August 10, 2021, 05:23:54 AM »

I  like the bugs motif Don. Did you have any trouble getting good colour density when you printed it?

John
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Don McLellan
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« Reply #48 on: August 10, 2021, 12:16:21 PM »

Thank you John.  I had to fool around a little with the bunny motif, not so much regarding the density of the colour, but trying to get the blue the right colour (which is waaaaay off as you can see in the earlier pic).  However, and I've noticed this before, if the colour is close (in this case blue), a slight difference in shade doesn't seen to show up.  At least doesn't show up at Peanut scale.

As mentioned earlier, my printer is on its last legs and is now truly working to rule.  So I did try printing some tissue for the rudder using my wife's (newish) Epson ET-3760 (which doesn't use Durabrite ink), and it seems to have worked.  I glued the tissue to one side of the rudder, carefully brushed on some water to shrink, still had wrinkles in one area so really applied the water to that corner.  And, the tissue shrunk, but the ink didn't run.  As you can see in the pic, I used white Esaki, and printed both the blue background and the black lines.
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PaulBrad
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« Reply #49 on: August 10, 2021, 04:45:16 PM »

Everything sure is turning out nice Don.

Paul Bradley
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