Mystic 185 Twin Turbine Build by Chris "Sir File-a-Lot" Fischer

[Boaterguy]

that box is gonna look sweet!
no red in this build? maybe some purple...

[ManuelW]

assembly of the different frames

In the two frames with 10mm and 12mm width, Christian drilled congruent holes and then counter bored them for the countersunk screws of the spacers.




(parts for the frame)

Here are the parts put together just to get an idea of the optic, not assembled yet:




As for sure Christian did some modification to the spacers to save weight and get a nicer optic, then he also polished them:

[megalops]

Hey ManuelW what CAD program is that? BTW Hats off to you guys on what is go to be the "Tightest" build i have even seen so far. Wow!

[megalops]

This is what happens when dudes with lots of skills and "time and money are irellevant" ! Love it.

[ManuelW]

After assembling with the spacers he glued the 5mm frame to the top:







bulkhead and side walls or just "the seams"

The next work was to glue in the bulkhead to create two seperate parts, before "wrapping" it with 0.3mm CF sheet to create the side walls. A very important chapter in the rc box build are the epoxy seams. As resin he uses UHU Endfest 300, I don't know if its available in the USA, here you can get it really easy. To be honest, Christian reached an almost awful precise level to make these seams absolutely perfect. Its maybe even better than a machine could do it.
Therefore below are a few photos which should show the perfection. He uses mask tapes to cover areas from the resin and to get a sharp edge. He adds black epoxy color to the resin and the exact amount of thixotropic agent. As tools he only uses the wooden sticks from McDonalds, there they use them to mix coffee but I think this is more a hoax - their real use is to make epoxy seams. He always says it needs a lot of patience and a calm and competent hand. The resin mustn't be too liquid as well as not to viscous - you have to get the right point. Maybe in the future I'll take a little bonus video of him how he prepares and makes these seams.

The bulkhead and the seams - sit down and enjoy!

[ManuelW]

The 0.3mm thin CF sheet has a nice glossy side and a rough one. As 0.3mm is really thin, first Christian made one layer with the glossy side to the inside of the box, then another layer with the glossy side to the outside. So the overall thickness of the side wall is now a bit above 0.6mm which is enough. Before he ordered the needed CF sheet, I could measure the circumstance of the box in the CAD program. For the 1. layer its 945mm, the box has a length of 345mm and a width of around 200mm.

[ManuelW]

I think the following picture sums up the perfection, in this curved area he didn't even use masking tape!



As you could aready see the side walls are higher than the box itself. So first Christian cut it down rough and then sanded it to the same level of the frames. The texalium sheet on the bottom was glued last, as he needed perfect access to both sides to make his seams. Here some pictures of the temporary result:

[Drax21]

Wow , that is a lot of work for a radio box. Totally looks worth it though and I haven't even seen it all yet.....

[ManuelW]

(and yes the optic of the side wall looks also in reality totally unreal like on the second to last picture )

final cover

As already mentioned there should be a final cover for the complete box, also with the glossy 0.3mm CF sheet as well as the texalium skull. Sadly the imported texalium sheet from Switzerland was not opaque, so you would have seen the black CF sheed shining through. As a solution I had the idea to have the skull cut out mirror inverted of a silver self-adhesive plotter foil. This has two advantages, first the sheet is not opaque any more, second that Christian then can use the contour of the "sticker" to cut the texalium sheet.

Here the two sheets/foils (1x texalium, 1x plotter foil)


Christian told me it was an extreme effort and took a lot of time to cut it out and file it to the right contour as the material is really really thin and starts to flutter almost immediately. Therefore he always filed as beneath as possible to the edge of the table and move only small distances. But finally he managed it

[ManuelW]

Christian proudly presents:






baseplate for RC box

Beside the RC box also the already shown hopper tanks have to be mounted inside the hull. In the original build Chris Tonn already designed a mount system for the old RC box which was longer. On one side it was just hinged inside a mount with hard rubber plugs and on the other side screwed down using two screws.
Christian wanted to use this system again so he designed a HUGE baseplate out of the rest from the nice 3mm CF sheet. The plate is 508mm long and 155m wide.

Here the sketch....


...and the transformation to reality...

[ManuelW]

After the ground plate was finished, the hopper tanks were installed first.





And here with the RC box, the mount system is still missing



As usual Christian made the parts for the mount system out of high strength aluminium before he polished them to "bling-bling" finish

[ManuelW]

The result

RC box and hopper tanks finally mounted inside the hull. I think everyone to his taste, I think the hopper tanks don't mess up the engine bay but are a nice piece of engineering.




So I think this was enough progress in this review for today. I'll continue the day after tomorrow, in the meantime I hope you enjoy reading.

Wish a nice evening,
Manuel

[Drax21]

Brilliant. I guess this is going to be Christian's best build yet!

[Boaterguy]

does he need a little assistant?
this is just crazy, i wonder how many files he goes through.

[Gimp]

Very, very, very very nice