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brahman104

HK B-17...C!!!!!!!! 4/9 drifting to the right

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Posted (edited)

Craig,

This is truly Amazing work you're doing here.. 

I am TOTALLY flabbergasted! :o

You are working this with every tool in the arsenal.

Keep up the Excellent work ! 

Pip

 

Edited by Piprm

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Nice work man!  I can see even at lower resolution this could be invaluably helpful to modeling. Someday a 3D printer will be on my to purchase list.

 

Model on! 

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16 hours ago, Starfighter said:

Looks good so far - looks like the resolution was rather low when you converted your 3D drawings into STL format. 

 

Hi Ben, thanks! I still have a lot to learn with this. Are you talking about when I first exported from Rhino or changing printing resolution in the photon? I'm not really sure about either process, so any pointers you have would be much appreciated! :)

 

15 hours ago, Piprm said:

Craig,

This is truly Amazing work you're doing here.. 

I am TOTALLY flabbergasted! :o

You are working this with every tool in the arsenal.

Keep up the Excellent work ! 

Pip

 

 

Thanks very much Pip! Yep, certainly redefining my modelling limits with this one, definitely made possible by access to things like 3D modelling and laser cutting :)

 

9 hours ago, Out2gtcha said:

Nice work man!  I can see even at lower resolution this could be invaluably helpful to modeling. Someday a 3D printer will be on my to purchase list.

 

Model on! 

 

Thanks Brian! I think you owe it to yourself, you won't be disappointed!

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When you first exported from Rhino! I do not have experience with Rhino, but when you export parts from Inventor and have the STL resolution turned to 'low', my parts look like yours. Check if there are any options when you export your part to STL and if so, check if you can turn the export resolution to 'high'.

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7 hours ago, BauAir said:

but now the most important question:

 

Which 3D-printer did You use ???

 

The prints look perfect

 

G'day mate, thanks for looking in on the build! I've mentioned it a few times throughout the thread but I'm using the Anycubic Photon, as quite a few of the other guys here are too.

 

Cheers,

 

Craig

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Craig,

What can I say! You just keep outdoing yourself with your "do overs!"

I thought your original ammo box was a work of art, but your new ones look fantastic --- and must be a timesaver!

 

I have to wonder sometimes if the C will ever be "truly" finished with your eye always on accuracy and revisiting items that where thought to be put to rest!

I'll love to see her when fiinshed, but each "delay" is an interesting project in itself! I for one can wait as long as it takes. Every step you take us through is well worth the wait!

 

Terry

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On 6/26/2019 at 12:31 PM, TKB said:

Craig,

What can I say! You just keep outdoing yourself with your "do overs!"

I thought your original ammo box was a work of art, but your new ones look fantastic --- and must be a timesaver!

 

I have to wonder sometimes if the C will ever be "truly" finished with your eye always on accuracy and revisiting items that where thought to be put to rest!

I'll love to see her when fiinshed, but each "delay" is an interesting project in itself! I for one can wait as long as it takes. Every step you take us through is well worth the wait!

 

Terry

 

Thanks Terry,

 

You know between this and the Desert Rat, I'm not sure who'll be finished first the way I'm going! :)

 

Anyway, back home after 6 weeks in the States, I've found some time finally to get some runs on the board with the C..... First up was the rudder pedals and centre pedestal, followed by the permanent fixing of the two rear seats in the cockpit. I really like the green I ended up with ;)

 

61EESuJ.jpg

 

Then, in a change of direction I decided to get done something I've been procrastinating about for a while - the nose windows. I covered the interior of the nose section with putty in an attempt to replicate the soundproofing felt. How successful that will be remains to be seen, but it has made the walls quite thick. I drew up some frames in Rhino and printed them on the Photon; still have a huge amount to learn about resin printing!

 

UQuNosG.jpg

 

Once cleaned up, each will form the inside border for the window. On the outside, the windows will be oversize acrylic which will be sanded and shaped, then the final window dimensions will be depicted by the aluminium skin.

 

PgqFZE7.jpg

 

Takes a lot of grinding and test fitting to set each one as they are bevelled to allow support of the acrylic pieces.....

 

gQBj5EB.jpg

 

Then fixed in place with epoxy.

 

VMmE2Ld.jpg

 

On the last photo you can see how the support will work so my clear bits don't fall in :)

 

9vk8AUN.jpg?1

 

More of that, then hopefully some colour and fitting out of the nose section to come soon!

 

Cheers,

 

Craig

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Craig,

 

Nice to have you back and recovering from your vacation!

 

I have to ask --- do the window frames have "rolled edges!"

 

Cockpit looks great. The overall cockpit coloring is very effective.The shade of "bronze green" you came up with is just right. The more "oliveish" sidewall insulation isn't at stark contrast, but enough to keep things from being soporific; the yellow seat cushions/floatation devices add that "glitz" to the surrounding greens. Your control yokes will also set things off. You avoided the cockpit from becoming a "green chamber." Excellent work and very realistic looking --- you pulled it off nicely.

 

I'm sure all of your "major" work on the "C" is rewarding, but it must be truly relaxing when you work on something like the "finishing" details of the cockpit.

 

Terry

 

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On 8/18/2019 at 8:09 AM, TKB said:

I have to ask --- do the window frames have "rolled edges!"

 

Haha, well the skin isn't on yet, so if I can find a mini-Mike to do my metal work, I might be in with a chance!

 

So as I've found out recently, the outboard engines are situated too high on the wing. Not really enough to worry most people, but if I'm going to build this C, then an E and an F, I figured it might be worth my while to see if I could something about it. Also, I had to get rid of the intakes between the two engines in each wing and the outboard fuel boost pump blister underneath as, after lengthy discussions with Terry (TKB), we've concluded that they weren't fitted until probably the E model.

 

After studying a myriad of top photos of the wings, it became apparent that the rear of both nacelles are the same distance from the rear spar line of the wing. When I examined the kit, here's what I found:

 

URIfpyC.jpg

 

Assuming that HK at least got the length of the nacelles right, that means that the outboard is too high by about 3-4mm, which is what I'd figured. So what to do about it?

 

Well as you know, I'm no stranger to drastic surgery...

 

Y3b57sG.jpg

 

The wing plastic is ridiculously thick, so it took ages to remove the upper and lower nacelles...

 

IiKZY6y.jpg

 

Now off the wing, you can see quite clearly how high it sits on the kit....

 

802SDdb.jpg

 

After a while of thinking, I got to what I feel will be a reasonable fix:

 

First of all, I had to bridge the gap where the original was. (this is the lower nacelle, as it needs to move down)

 

wq9Z9TI.jpg

 

Then, using laminations of plastic to follow the wing profile, I built it up (down) to 3.5mm

 

aYFksVT.jpg

 

Then placed back on the wing, you can now see it has had the desired effect...

 

jAoTVWF.jpg

 

5gLy0XZ.jpg

 

Iq1MQuQ.jpg

 

Still a huge amount of work to blend it back in, but I think I'm on the right track.......

 

Cheers, Craig

 

 

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