1:35 Bucket chain excavator Ertmer KB 1

[Bernhard]

Hi Volker
Here a better picture of the winches. For the model I found worm wheels with 30 teeth and module 0.2.

Hi Kim
Last week I  got the last parts, the laser-cut chain links. Now I just have to assemble everything (the chain consists of 512 parts!) and paint it. Peanuts!

Bernard

[Hydrostat]

Bernhard,

thanks for the picture. Which diameter is such a worm wheel?

Volker 

[Bernhard]

Volker, the worm has the following data: m = 0.2 / dt = 2.4 mm / L = 3.5 mm. The worm wheel: m = 0.2 / z = 30 / dt = 6 mm / B = 1 mm. I found the parts here: https://www.sol-expert-group.de/.

[Bernhard]

The next small assembly is the closing flap on the discharge hopper.
The flap is used to close the discharge hopper, while a full tipper truck is exchanged for an empty one while the excavator is running.

[Bernhard]

The flap is soldered together on a small jig.

[Bernhard]

Then there are a few small levers to be done.

[Bernhard]

Screw the small levers together with M0.8 screws, ...

[Bernhard]

... and the movable flap is ready.

Bernhard

[TRAINS1941]

Your work is unbelievable!!

Jerry

[finescalerr]

Most satisfactory. -- Russ

[Ray Dunakin]

Brilliant!

[Franck Tavernier]

Amazing Bernard!

[Bernhard]

Thank you, guys. I hope you are all healthy.

Continue by the bucket chain excavator with the railing on the operator platform.Originally, the operator's platform was provided with a weather protection. The photo shows the excavator in its original condition, before the recovery and restoration.
Photo from http://www.feldbahn-riedlhuette.de/Riedlhuette/2010_Eiselfing_Bergung_Eimerkettenbagger_und_Steinbrecher/2010_Bilderuebersicht_Nr_B.htm

[Bernhard]

But I'll rebuild it to its present condition.

[Bernhard]

The necessary parts are quickly made.