Building of the CMA Flecha Azul scale bus

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Building of the CMA Flecha Azul scale bus

     The miniature project of the CMA-SCANIA Flecha Azul bus, of molded tinplate in 1:25 scale, includes versions III through VII. Earlier models should be included later.
     Project Details:
               Length: 528mm
               Width: 104mm (not including rear view mirrors)
               Overall Height: 144mm
               Estimated Weight: 1450g
          General features:
               Windows with movable glass;
               Detailed interior with ceiling cladding; package carrier; armchairs and toilet;
               Very detailed powertrain and suspension chassis;
               Rubber tires;
               Luggage compartments and engine compartment open;
               Possibility (optional) of conversion to RC system (radio controlled)

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CMA bus models from III to VII will be included in this project

Prototype modeling stage. (A) space left to be filled with a part with the inscriptions Scania or Cometa embossed.

Prototype modeling stage. Several changes will still be made to these parts.

Prototype modeling stage. Several changes will still be made to these parts.

The fluted aluminum on the sides of the CMA-SCANIA Blue Arrow bus are the details that most impress at first glance, but they are also a critical point of the project at the time of modeling. The alignment as well as the distance between the flutes of the sheet are not very easy to leave with a pleasant appearance.
A linear crimping machine has been developed specifically for this project. In the photo is the result of the first stamping of the top of the side still without the alignment guides on the stamper.

The stamper for the standard of the lower section of the side of the CMA was developed. From this stamping will be trimmed the doors of luggage compartments and other pieces that make up the side below the level of the floor. This is the first stamping test without completing the stamper inlet and outlet guide adjustments.

Adjusting dimensions of the right side front. The parts are still being modeled.

Adjusting dimensions of the left side rear. The parts are still being modeled.

Another partial assembly was made in order to check measurements and to give notion of dimensions. It also aims to show the progress of the project to the people who made the reservation of the miniature and the people who, in some way, are accompanying the development of the miniature project of the bus. The base of the project is the CMA III and the window at the bottom of the door was added in this assembly so that it could give notion of how it would be in the versions of the CMA IV onwards.

The scale CMA-SCANIA bus is, now, being worked at the level of the windows. This part is not entirely detailed yet. This time the works go to the roof level and then back to the luggage compartments and other parts to be re-detailed.

One more update. Unfortunately, the prototype is still without the windshields openings. I hope that in the next update the whole prototypes of the sides are done. It can be noticed that one window is lacking. With this last window one can have notion of the whole length of the bus.

The sizing and positioning step of the lower compartments is almost over. The luggage compartments are sized, now other compartments like the battery, tank and engine will be worked. It was also done in this stage the dimensioning of the lateral structure of the roof and windows.

Except for some corrections that still have to be made in the molds, today was stamped the final structure of the front of the CMA. The darkest area, where the lights are, is not yet definitive.

Picture 2 of the same stamped set.

First tests with the seats in the standard coach version. These seats are not finished and were made for the tests only.

Opened luggage compartment and other side compartments.

Adjusts in the driver cab.

Adjusts in the driver cab.

Accesss to the passenger compartment.

Accesss to the passenger compartment.

Engine compartment and suspension settings.

Body for CMA version III.

Body for CMA version III.

Body for CMA version III.

Body for CMA IV versions onwards.

Body for CMA version VI.

Body for CMA version VI.

Body for CMA version VI.

Front view of a typical CMA Sleeper.

Assembly of the structure of the first units.

There is more on this to show and will be added as soon as possible.
Ivan Gouveia

Post graduate in Computer Networking from FACIMED - Faculty of Biomedical Sciences of Cacoal. Graduate in Information Technology from UNESC - Union of Colleges of Cacoal. Has a CCNA (Cisco) as complementary course on Computer Networks. Is professional in the field of Electronics and Computer Programming. Programmer in languages Delphi and Visual Basic.