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6 inch' BL 26cwt Howitzer

This section is for builds that are not strictly Tamiya or Heng Long. For instance, replacing the electronics from a WSN or Matorro, or even a scratch-build.

Postby wibblywobbly » Wed Apr 05, 2017 12:03 pm

Thought I would have a go at a piece of British artillery, it will make a nice addition to the battlefield scenics. The plan is to make it with a recoil if possible. The Arduino Uno project is ideally suited to this as it can simply be plugged into a battery and will run all day unattended. This will allow me to hook it up to a pressure pad or light sensor so that when a tank comes within range it gets shot at. It will also have a full IR battle system attached. This means that it can be shot at and killed as well, complete with flashing hit led's.

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Postby silversurfer1947 » Wed Apr 05, 2017 1:06 pm

Off to a good start. I like the idea of the light sensor - people will forget about that. The diorama should be no problem, struggling trying to find a gun crew though. I don't suppose you can design and 3D print people? ;D
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Postby wibblywobbly » Wed Apr 05, 2017 2:30 pm

Ever since I got my first printer I have searched high and low for printable 1/16 WW2 figures, to no avail. Just the legs, arms and torso would be good enough as there are plenty of sources for heads and faces. I can print Brit helmets etc.

Theoretically, a detailed 1/35 or 1/18 one would do, as it is easy to scale a model up or down. A 3D scanner would be good, I could build one after the gun is done?
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Postby silversurfer1947 » Wed Apr 05, 2017 2:47 pm

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Postby wibblywobbly » Wed Apr 05, 2017 2:52 pm

If you can hang fire on buying them, when I have completed the gun, I'll look at doing a 3D scanner. If I can't get the scanner to work, I wouldn't be able to make use of the gun crew. All I really need is a turntable, decent lighting and a decent camera. It's all do-able...it's time as always. :eh:
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Postby silversurfer1947 » Wed Apr 05, 2017 2:56 pm

No rush
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Postby RobW » Wed Apr 05, 2017 3:57 pm

There's a phone app to do this, but the quality may suffer. If you've decent stl editing tools then shouldn't be an issue.

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Postby wibblywobbly » Wed Apr 05, 2017 7:31 pm

Ok, barrel done, recoil bed done, barrel recoils.
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Postby silversurfer1947 » Wed Apr 05, 2017 7:37 pm

At this rate, it will be up and running by the time I get back home next Tuesday.
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Postby wibblywobbly » Wed Apr 05, 2017 7:48 pm

No chance of that, these are the easy parts.... :problem:
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Postby wibblywobbly » Thu Apr 06, 2017 11:19 am

As a test, I found a figure online and printed it. 32 mins, and and it came out pretty well. On this basis getting a decent scanned WW2 figure should come out just as well. If only we knew a bunch of re-enactors and someone with a full body scanning machine, we could get the actors to pose in all sorts of positions, scan them and have a whole army of printable figures? :/
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Postby HERMAN BIX » Thu Apr 06, 2017 11:40 am

A T34's worth of Russian assault troops thanks, followed by a StuG's worth of German Grenadiers.............

Hey !, you asked for it :/ :/ ;)
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Postby wibblywobbly » Thu Apr 06, 2017 12:06 pm

You can have a small boy and be grateful!! :haha:
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Postby silversurfer1947 » Thu Apr 06, 2017 1:54 pm

Looks good. I read of some software that will turn a series of photos into a 3D image. Not sure how it becomes a printable file. The software was free so I thought I would have a go with one of my existing figures.
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Postby wibblywobbly » Thu Apr 06, 2017 2:08 pm

I had a go a while back. The trick to getting a good quality scanned image is getting 360 degree lighting, and keeping the camera a set distance from the scanned object. A tripod and a turntable are the way to go. It also needs some way of moving the camera 360 degrees on all planes. Eg The camera needs to see under arms, between legs and into recesses etc. That is the bit where it all gets complicated.

There are numerous programs out there that will process the pics, some are better than others, and as always, the free ones are a compromise and the decent ones are expensive.

The figure that I downloaded had been scanned, and then had to be turned into a 3D figure, the file was generated by the guy, but then had to go through two other programs to get it to a point where it could actually be printed? It shows the benefits of doing that. The original was about 4x the size, I scaled it down to 60mm tall, and it still printed very nicely.
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Postby silversurfer1947 » Thu Apr 06, 2017 2:52 pm

I've got a good camera, a tripod and a turntable, so the only thing it will cost me is some time. I will have a go with some of the free software partly just out of interest.
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Postby wibblywobbly » Thu Apr 06, 2017 10:06 pm

Did a couple more parts, next up is the undercarriage. I have plenty of room to fit an IR emitter and a flash led next to each in the end of the barrel.

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Postby [ICE]monkey » Fri Apr 07, 2017 5:12 pm

very nice 8)
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Postby wibblywobbly » Sat Apr 08, 2017 12:48 pm

Bit more done....Had to print the wheels in two halves, I can fill the gap.
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Postby Artyfist » Sat Apr 08, 2017 2:38 pm

Looking great!
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