De Industrie 2VD5

[xander janssen]

Made a medal for the skipper of the tug boat "Odilo" to thank him for supporting me in building this engine.

 

[xander janssen]

A friend 3D-printed me a template for the crank case covers. Next is to deburr it, cast it in heat resistant silicone and replicate it in pewter.

Size is 37x37x2 mm (1.5 x 1.5 x 0.08 inch) with 4 mm (0.16 inch) font.

 

[xander janssen]

Last week CNC milled some flanges, soft soldered the cooling jackets. Next is to pressure proof them with air while holding them submerged under water. No bubbles = succes.

Internally, there is a nice filled of solder. The gap visible on the outside is due to a too large chamfer/debur on the edge of the tube.

3d design of the head is also finished. First will make one prototype from aluminium before machining two from solid brass.

 

[minh-thanh]

Looks great !
Do you intend to start the engine with compressed air ?
That is very interesting and different
And, because.... I'm very interested in ..

 

[xander janssen]

Looks great !
Do you intend to start the engine with compressed air ?
That is very interesting and different
And, because.... I'm very interested in ..

Hi,

I'm not building the air start. The head design is already rather complicated as it is going to be a machined part from bar stock. A casted head would leave more options, but still, adding another functional valve in the already tiny head would give me headaches

 

[xander janssen]

Slow but steady. Finished the pre-machining of the dummy cilinder head. Before I go to the expensive 60mm (2.5") diameter brass, I test all machining steps on a piece of aluminium.

After turning and saw-cutting away the bulk material, the 0,0-ref point is reamed and a reference plane is milled. A sanity check with a 1:1 scale drawing to see if there is enough material for cnc milling the outside profile, hole patterns and recesses.

Once all processes are checked, the two final heads will be a matter of a few hours.