Hulett Ore Unloader in 1:32th

[Bernhard]

The metal sheets are thoroughly washed to remove any soldering fluid residue before further assembly.
Now everything is ready to assemble the first girder.



First all the braces are inserted, ...



... then the box is closed.





Now all parts can be soldered together. This is not easy in places inside the girder, because it is difficult to get in with the electrode of the resistance soldering device.

[Bernhard]

But after six and a half hours, it's finally done.







The first girder lies on the towers for a test. And my employee of the month, despite his fear of heights, stood on top of it to show you the proportions.
The figures are impressive:
Height of the feet: prototype 6336 mm (20.8 '), model 198 mm (7.8 '').
Height of the carrier: prototype 2440 mm (8'), model 76 mm (3').
Length of the girder with the rear cantilever: prototype 40870 mm (134 '), model 1277 mm (4.2 ').

[Bernhard]

But the girder is far from finished. Next, I have to attach various trusses. To do this, I cut two soldering jigs into a Resopal panel.



Fitting the gusset plates with rivets, ...



... and the first trusses can be soldered.



As you can see from the part on the right, I always mill the soldering jigs so that I can solder a left and a right version in the same jig.

[Bernhard]

The next soldering jig is a little more complex. It is intended for the trusses on the outside of the cantilever and is half a meter long. It is also prepared so that I can solder a left and a right version.





But before I can start soldering, I first have to fit countless gusset plates and angles with embossed rivets.

Bernhard

[Peter_T1958]

This gets more and more dizzying...   
But your work space is not bad either!

[finescalerr]

So tell us, Bernhard, what did you do over your Thanksgiving vacation?

The size and complexity of those girders and supports are overwhelming, yet every detail is virtually perfect. This is an adequate project.

Russ

[Bill Gill]

Bernhard, I showed a retired machinist/engineer friend parts of this thread and he was amazed at your work and envious of some of your equipment. 

[Ray Dunakin]

Wow, what an epic project!

[Stuart]

Always impressive and gets ever more so as your work continues!

Stuart