M-10005 - new pictures of the aux. power-baggage car

Some progress on the baggage car (trucks' sideframes started, most of the rivets on the body set etc.)

Further progress on ATSF #2611

Window & door openings roughly cut and roof modified to asymmetrical design of front and rear

 

ATSF #2611 - further progress

Basic pilot design and side skirting as well as roof shape were finished

ATSF #2611 in1/29

Another project: ATSF #2611, a transfer unit rebuilt from one of the one-spots.

ATSF #2611

Body will - once again - consist of an Aristo-Craft HW. Shortened, with the HW's end slightly inclined.
Roof will be a bit more difficult due to the different intake grills on each end and sides as well as the two 'counter-sunk' exhaust/muffler arrangements (quite similar to those of the M-10005) and the several cooling intake hatches.

Trucks of an USA-Trains F3B will be used.

First pictures of the basic body & truck assembly (I have to admit, looking really strange & ugly). Body height seems to be rather small in comparison to the usual F-units and the trucks - however, it is according to the app. 6'10" listed in the drawing in 'Santa Fe early diesel daze'.

M-10005: electrical controlling system installed

Since I use four motors of app. 750W each (36V) I had the choice between two controlling systems:
- a single, very powerful controller with long wire harness to the motors and the two 36V-packes (12V batteries in serial connection)
- two smaller controllers one for each truck, connected in a master-slave set-up, with shorter wire harness and none of the problems of connecting two different 36V-packs

Well, after several months of consideration I decided to go with two controllers in a master slave set-up (4QD Pro-150).
The front truck is the slave, the rear the master controller which is connected to the controlling box (with ignition, forward/reverse-switch and speed
pot).
For safety I put several fuses into the harness (ignition, battery connection and to each motor) -  maybe overkill but this set-up may help to locate a problem or to ease limping back into the station.