scratchbuilt 1/32 taifun

[anonymous-user]

Well, long before I cared about cars, I built model aircraft. I still do but the rate has been dramatically reduced by adult life.

I have a bfb rapman 3.1, and I decided to put it to good use in my first scratchbuild project. I am documenting the process over on britmodeller, and I thought that some of you here might like to take a look....

http://www.britmodeller.com/forums/index.php?showt...

Coanda

[Eric Mc]

That's an amazing machine you've bought. It's like something from a science fiction story.

Why doesn't your thread have a proper title, by the way?

[anonymous-user]

You know those machines on star trek.....! Very first baby steps towards it!

Matt Dell sorted the title for me. Don't know what happened there, but sorted now!

[Eric Mc]

Makes more sense now.

It's all a bit like magic.

[dr_gn]

Nice project. I've got one of these in the garage:



But the control board's gone, so it doesn't deposit the plastic. I was going to use the motors and ballscrews to make a CNC mill, but they're not up to it. Stratasys give you a program to make this F-16:



It's OK, but nothing like a decent injection moulded kit. We are about to get a load of the latest generation of 3D printers at work, so I'll be interested to see how they've improved.

Have you considered spraying the parts with thick filler primer? Presumably the step-over is not that large?

[perdu]

I thought that tail end looked Messerschmitty

Looks wonderful, if I had one of those mchines I could go mad

coanda that's brilliant

[anonymous-user]

gn - looks good. UV setting?

The surface is ideally keyed for a coat of filler. Necessary for scribing panel lines, so not really an issue.

Perdu, I've been waiting to do this for a while, and am really enjoying the ride soo far.

Got some photo's of the parts to upload to the thread in a bit.

coanda

[dr_gn]

coanda said:

gn - looks good. UV setting?

The surface is ideally keyed for a coat of filler. Necessary for scribing panel lines, so not really an issue.

Perdu, I've been waiting to do this for a while, and am really enjoying the ride soo far.

Got some photo's of the parts to upload to the thread in a bit.

coanda

Naaa it's ancient technology - melted ABS squirted out of a nozzle onto a platten than increments downwards. There are different grades of plastic for the model and overhang support structures.

(ETA - I just realised it's the same type as yours! The one I've got is about 10 years old though).

I've got an on-and-off project at work for robotic milling. I've got as far as a small scale F-15 (from a ProE model), and it looks promising. The idea is to robotically mill an entire ducted fan model eventually. In fact I already have the solid model of a Boeing X-32 ready and waiting.

I guess you saw the 1:32 rapid prototyped Bf109 exhausts (laser sintered in Inconel) I had made - again from a ProE model? This would be a good method of making details for your '108.

I agree it's all excellent fun.

Edited by dr_gn on Wednesday 12th October 23:53

[anonymous-user]

Ahh I see. The enclosed box would be good for keeping the part warm during build to reduce in-built stresses and thus warping. Have you looked at the BFB site? They are pretty good, and would be able to sell you an electronics package that you may well be able to use to get your prototyper going?

I didn't see the exhausts - can you point me in the right direction?

Here in Bristol a group of Airbus and Rolls apprentices worked together to make a full size repro of a Bristol Fighter. It's externally accurate only, but they did a good job. The RR guys made a few bits of the engine using RP techniques, and then had them sprayed up to look like metal - exhaust tubes I think. Looked very good indeed.

More printing tomorrow afteroon whilst I'm staring at Forza 4!

Cheers,

coanda

[dr_gn]

coanda said:

Ahh I see. The enclosed box would be good for keeping the part warm during build to reduce in-built stresses and thus warping. Have you looked at the BFB site? They are pretty good, and would be able to sell you an electronics package that you may well be able to use to get your prototyper going?

I didn't see the exhausts - can you point me in the right direction?

Here in Bristol a group of Airbus and Rolls apprentices worked together to make a full size repro of a Bristol Fighter. It's externally accurate only, but they did a good job. The RR guys made a few bits of the engine using RP techniques, and then had them sprayed up to look like metal - exhaust tubes I think. Looked very good indeed.

More printing tomorrow afteroon whilst I'm staring at Forza 4!

Cheers,

coanda

I'll have a look at the BFB site, might be able to cobble something together.

I saw the replica aircraft in a magazine not so long ago - I bet it was some of the best practical training the apprentices ever got.

The exhausts were here (30th April post - might not be the right page in the link)

http://www.pistonheads.com/xforums/topic.asp?h=0&a...

Ta.