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Found 1 result

  1. This is the big Moebius styrene kit that probably needs no introduction. Currently I'm at a "proof of concept" stage in trying to decide how to wire this for lights. I've got some other projects on the go, too, so I suspect this will be a sporadic log. The kit is supported by a long steel spine that runs the length of the craft from the base of the centre engine bell at rear to the back of the round command sphere at front. It's actually composed of two separate rods, of equal length, which join in a steel sleeve concealed inside the antenna module. There's a lot of space inside the kit's hollow engine compartment, so it's an obvious place to stow batteries, and the two steel rods of the spine are actually rather robust tubes, so in principle they could carry wiring from the back to the front of the kit. Here's what the inside of the engine compartment looks like, with the steel rod in place, protruding from the rear to support the rear engine bell: I made some mods to the upper half of the engine compartment to turn it into a lid for this "battery bay": I've extended the original locating holes for the outer plating into slots, and I've removed the front locating flange, so this piece now works as a removable cover: Next task was to prove that I could get some decent wiring through the tubing. With a little fiddling and some mineral oil I eventually managed to screw a twisted pair through both lengths of tubing: Here are the two rods assembled end to end, linked by the central sleeve fitting, to give an impression of how long this assembly is going to be: Next I wanted to trim a short length off the rear rod, so that it finished inside the "battery bay", but I needed to add some sort of structure inside the bay, so that the engine compartment remains supported. It doesn't need to be particularly robust, since there's not much weight at the back of the kit. I came up with this, which is drying in place supported by the full-length rod: I could actually have made it a little more robust if I'd thought to drill out the plastic case at each end of my brass rods---these holes would have been concealed by the external detail panels. As it is, they're simply epoxied in place. After letting that assembly dry overnight, I measured the length I needed to remove from my rear rod. Here I have the rod in its correct position, with the rear end against a stop inside the central engine bell, and I've marked the point at which it protrudes from the rear of my improvised support structure: On the principle of measuring twice and cutting once, I also assembled the four base units for the rear cargo pods, and made sure that once they were threaded on to the rod, an appropriate length of rod protruded at the front end to engage with the central sleeve. Then I pulled back my wiring and Dremelled off 1¾ inches of steel. Here's the post-lopping assembly, showing I can now get my wires into the bay, with the correct length of steel extending forwards to engage with the central sleeve. There's room for a couple of switched AA 3V boxes---one for the engines and one for the command sphere. And there's room to glue in a couple of connection blocks at the rear. To get wiring to the engine bells, I can use the original central hole for the steel rod, and I've drilled out the supports for the two lateral engines: As it stands, this leaves the engines bells relatively unsupported, so I may drill out further and add three styrene tubing sleeves to replace the original supports. At the front end, only one hole needed drilled, in the rear part of the command sphere, just large enough to allow the wiring through while still allowing the structure to serve as a locating stop for the front end of the steel rod. That's it for now.
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