NöNöBärs's What-If Flugwerft (WIP: Greenland Airforce TS-11 Qinngorneq)

nönöbär · October 13, 2019, 01:21:52 AM

The jet engines are now added to the wings. 4 of them are enough

But because of then, I cannot use the original landing gear of the Caravelle, it is too short (the one of the L1049 does not fit under the wings at all). So I have to make a new one.

First tests are printed and I will continue in this direction.

Tophe · October 13, 2019, 03:02:02 AM

Nice silhouette, unusual

nönöbär · October 20, 2019, 03:15:50 AM

Quote from: salt6 on October 13, 2019, 06:57:27 AMI think you'll need a little bit more rudder.

As salt6 pointed out, the rudder was too small. So I am working on a bigger one. Which basically a scaled up version of the original one. A first test print was made, now i can make the "real" one:

Besides this, the new landing gear is now made. The front one is the original of the L1049, the main gear is printed, the wheels are taken from the Caravelle kit:

zenrat · October 20, 2019, 03:55:33 AM

How strong and stable are 3d printed parts compared to injection moulded styrene or resin?
Resin will bend over time if there is weight on it (don't ask me how I know that) while injection moulded styrene is more stable.

Tophe · October 20, 2019, 03:58:52 AM

Quote from: nönöbär on October 20, 2019, 03:15:50 AM
the rudder was too small. So I am working on a bigger one. Which basically a scaled up version of the original one. A first testprint was made, now i can make the "real" one:

This is even better with the new fin.

nönöbär · October 20, 2019, 04:24:59 AM

Quote from: zenrat on October 20, 2019, 03:55:33 AM
How strong and stable are 3d printed parts compared to injection moulded styrene or resin?
Resin will bend over time if there is weight on it (don't ask me how I know that) while injection moulded styrene is more stable.

A good question, I don't know. I guess FDM prints (PLA) and SLA prints (Resin) are quite different.

PLA is sensitive to temperature. at about 60°, its getting weak. I had one mount for a thermometer outside which got a lot of direct sun this summer. Its now completly bended. I have some other prints outside to see how they will react to sunlight, rain, snow etc over alonger time.

For the resin, I have no experience so far. The landing gear is made with the SLA printer, so I have to see if this will be a problem after some time.

NARSES2 · October 20, 2019, 06:56:04 AM

Quote from: zenrat on October 20, 2019, 03:55:33 AM
How strong and stable are 3d printed parts compared to injection moulded styrene or resin?
Resin will bend over time if there is weight on it (don't ask me how I know that) while injection moulded styrene is more stable.

Interesting that, maybe it's why a few of the top end resin boys now mould their undercarriage parts in a different type/colour resin from the rest of the kit ? I knew it was for added strength, but was not aware of the time issue.

zenrat · October 21, 2019, 04:30:54 AM

ThePartsBox.com cast their resin hot rod front axles with a wire through the middle for strength. They didn't used to and they would sag over time.
I had a 1/25 '29 Ford roadster which ended up with very cambered front wheels.
However, putting a block under the axle allowed them to drop back down again.

McColm · October 21, 2019, 05:09:41 AM

Looking good, I have tried adding turbofaned engines taken from two Matchbox A-10 to a Heller 1/72 Connie. It works so I will try it again in the future.

TheChronicOne · October 21, 2019, 10:05:35 AM

Looking really nice with the larger fin. I glad you kept the original shape... the curviness of the whole affair is a large part of the appeal.

Dizzyfugu · October 21, 2019, 10:22:15 AM

Quote from: TheChronicOne on October 21, 2019, 10:05:35 AM
Looking really nice with the larger fin. I glad you kept the original shape... the curviness of the whole affair is a large part of the appeal.

Second that.

nönöbär · October 21, 2019, 10:51:48 AM

The fin was taken form a 3D model of a Constallation. I removed the rest of the plane, scaled it in the size I wanted and printed it. Have to see if I can really use it or make a new print with the Resin printer.

And i will have to see what happens to the printed landing gear after a while. As I do not have this printer fro so long, there is no long-time experience for me with the prints.

nönöbär · October 27, 2019, 04:01:17 AM

Unfortunately I lost the cockpit windscreen somehow...

So I will close it, sand it and use some decals for it. Would fit better to the passenger windows as those are decals, too.

Old Wombat · October 27, 2019, 06:41:34 AM

And, once completed, you'll find the cockpit window.

nönöbär · November 03, 2019, 01:45:16 AM

Quote from: Old Wombat on October 27, 2019, 06:41:34 AMAnd, once completed, you'll find the cockpit window.

Of course - I will find tw oof them....

To check if the putty&sanding went well, I did a complete paint over the complete model. Looks as if a few spots are left which need a bit more work:

But i hope I can go to the real paint job soon.