Rotary mandrel press kit

Soft soldering paste for brass, copper, steel and silver steel. The paste is applied thinly to the parts to be tinned and heated with a brazing lamp. For large-area soft soldering, it is optimal to tin- the parts beforehand. For example, we use the paste to pre-tine the cylinder and the mirror when constructing a model steam engine. The tinning paste can also be used optimally as a flux substitute. The soft soldering paste is excellently suitable as corrosion protection for steel parts. Bengs Modellbau uses the zinc paste for steel cylinders with a cooling water jacket. For example in the Flammenfresser Kurfürst. Stirring the paste before use is not necessary! The soft soldering paste may be diluted with water. Ready-to-use metal paste Contents: 50g Bottle with brush Click here for the modeling magazine: Soldering with soft solder paste and tin paste Soldering and tinning with soft soldering and tinning paste

Brass Ms58 flat material is a very good machinable material. Brass is probably the most widely used material in technical modeling. Which is certainly due to the fact that it can be worked very well. It can be milled, turned, drilled, brazed and softened. Many Stirling engines, steam engines and flame eaters in technical model construction are mainly made of MS58 brass. You can order brass flat material in different thicknesses from 2mm to 6mm here at the Bengs Modellbau Shop. Flat Material Brass Quality: Ms 58 (drilling and turning quality) Strength F45-50 Flat material 50mm wide Length 300mm

The original Britain, America and France had introduced several notable hot air engines by 1850. Surprisingly, Germany had not produced any significant innovations in this area up to this point, it was not until 1867 that the German Wilhelm Lehmann produced a significant innovation in the field of hot air machines. A late innovation, but an impressive one: the Lehmann air expansion engine!The model Stirling engine Rainer The model of the Lehmann Stirling engine has a total length of 285 millimeters. When designing our Stirling engine, we tried to keep it as close to the original as possible. However, it is not a 100% copy of the original. Our model is operated with an alcohol burner. The burner is firmly screwed to the oak base plate. The cooling jacket, which was a solid casting in the original, is assembled from several milled brass parts and soft-soldered. Just like the original Lehmann Stirling engine, the model has a functional centrifugal governor that can regulate the speed of the hot air machine. As with the original, the centrifugal governor opens a valve that allows the air in the Stirling's working chamber to escape. The 140 mm diameter flywheel is made from a very clean cast steel. In addition, the Stirling engine has a 48mm pulley that could be used to drive small drive models, for example.Speed control via centrifugal governor This Stirling engine has a working centrifugal governor. When the speed is sufficient, the balls of the regulator rise. This moves a lever that operates a valve. If the valve is opened, the working air can escape from the displacement cylinder. Due to the reduced pressure, the Stirling process no longer works optimally and the engine reduces its speed. To set the desired speed, you can adjust the spring tension of the valve using a handwheel during operation.Dimensions of the model Stirling engine Base plate: 255mm x 120mm Flywheel: 140mm Pulley: 48mm Total height: 210mm Working piston: 28mm Displacer piston: 25mm Length overall: 285mmThe “Rainer” Stirling engine material kit is included in delivery Wooden base plate Finished milled parts Brass, steel, stainless steel and silver steel Raw material for the turned parts Cylinder sleeve made of precision tube flywheel All required screws, nuts, gaskets, grub screws and wick Construction plan model Stirling "Rainer" drawings (14 sheets) and construction instructions (9 sheets)

This brass Ms58 hexagonal material is very easy to machine and is ideal for turning, milling, drilling and tapping. The material is suitable for self-assembly of screws, model building nuts and other components for technical modeling. You can order different key sizes in our shop, or you can order a set of different diameters. Features of brass Ms58 hexagon  Hexagonal material brass with different key ranges Quality: Ms 58 (drilling and turning quality) Strength F45-50 Length: 300mm We supply the brass Ms58 hexagon in 300mm sections. Savings set Hexagon brass Ms 58 / You save 20% The brass hexagonal material savings set includes 300mm per 1 bar 4mm 5mm 6mm 8mm 10mm 12mm