DEMAG ML15 (engine locomotive with 15hp)

[1-32]

cool cool Happy 2021.

[fspg2]

First a Happy New Year!

The first bearing shells were milled out.

A pocket was milled 5.0mm deep into an MDF board and a 20mm x 8.0mm MS58 square bar was inserted.

Even if it was already sitting tight in the recess, I also drilled five 3.0mm holes. After wood screws fixed the rod, I could start.


Demag_ML15_Montage_147 (fspg2)


A total of 8 different drills and milling cutters were used.

Demag_ML15_Montage_148 (fspg2)



Demag_ML15_Montage_149 (fspg2)


During the last milling process, I left small retaining bars between the bearing shells and the residual material (fixed with the screws).

Before the final sandblasting, the retaining bars on a grinding wheel were removed.


Demag_ML15_Montage_150 (fspg2)

[finescalerr]

Jewelry. -- Russ

[Bernhard]

Perfect parts. A cnc machine like yours is a really practical thing.

Bernhard

[Ray Dunakin]

Fantastic, as usual!

[Franck Tavernier]

Outstanding quality and beautiful job!

Franck

[fspg2]

Thank you very much for your kind words 

After I had inserted the first mounted axis into the milled test bearing block, an error on my part came to light.

I had specified the bevel gears in the CAD drawing with 10.2mm (instead of 10.5mm) and then drew the gear blocks . Everything fit there.

During assembly, the two bevel gears, offset by 90 °, sat very tightly - without any play - in the half-shells.
The remedy was that Achim kindly lend a hand again and put the two collars of the ball bearings on the outside. So I gained 0.5mm in the lateral displacement of the bevel gear on the axis.


Demag_ML15_Montage_156 (fspg2)



For the bevel gear of the central axis, I minimized the wall thickness by 0.5mm. Mounted in this way, both gears can be wonderfully adjusted to get a smooth run.


In addition, a recess was milled into the two upper covers so that the Allen screws of the bevel gears could be readjusted a little when screwed together.


Demag_ML15_Montage_153 (fspg2)



Demag_ML15_Montage_154 (fspg2)



The milling machine was busy at the weekend.


Demag_ML15_Montage_155 (fspg2)




Frithjof

[finescalerr]

I don't even know how you can design something that wonderful, let alone build it. Most adequate. --  Russ

[Bernhard]

It's always a pleasure to see your design and your perfect parts.

Bernhard