Recent content by iszczyg

Hi HMEMs, I've just finished the replica of Richard's Trevithick's Dredger Steam Engine. It took me almost a year to build the model (I wish I had more time for my passion ;)). Comparing to original I've made slight modifications (mainly due to the model scale): - instead of solid fuel I've...

Neil: thanks a lot - I haven't noticed Tony's thread. Basing on the infos from Tony's thread I have changed the size of holes to 1.2 mm - it has started to behave a little bit better. Finally I've replaced nozzle from 0.6mm to 0.15 mm. Now it works perfectly! The gas velocity out of the nozzle...

I've tried torch type flame, but when I put the outlet of burner to the tube the flame goes out. It behaves in the same way like my burner. Cheers Irek

I've tried to heat up the chimney with external gas burner but it didn't work

Hi, I have just finished Trevithick's Dredger model engine. It perfectly runs on compressed air, only paintings is to do. The last thing I have started to do is gas burner. I 've decided to use propane-butane gas delivered in small containers. I have constructed burner in a form of brass tube...

No, it was rather easy. Two afternoons: changing the volumes (position of restrictor) and machining new piston (first one was too loose) made the engine running. Regards!

The engine is inspired by Jan Ridder's thermo-pulse engine. It is called Daga VI :-) https://youtu.be/GbD8kV2PWNA

Daga V is finally ready! Four stroke, two cylinders IC engine. Openings in cylinders which allows observations of piston movements. Almost two years of build - in fact with two long breaks. https://www.youtube.com/watch?v=dk19mk16X8I&feature=youtu.be

Thank you all for the encouraging words! Now I'm working on the base of the engine. Some pictures of machining the stands. Irek

Hi all, The new project, Daga 5 is started. It is 2 cylinders Otto engine. Some ideas were taken from Jan Ridders' projects. Now I'm finishing the base of the engine. greetings from Poland Irek

Thanks all for the kind words! The diagram of the ignition system is shown in the Jan Ridders page. It bases on the electronic gas lighter. I have noticed, that it works better with the 2V supply, so I have used two AA rechargeable batteries (1.2V each) with 1.2 Ohm/2W resistor...

Hi, I have just finished my fourth project: 4 stroke internal combustion engine based on Jan Ridders plans. I have finished the engine in the beginning of this year, but since I've made a lot of mistakes, I had many problems with starting the machine. Finally, it is finished and works fine...

Actually not too much. It feeds two LEDs, one small and the second bright one, so it is approximately about 0.2W. But I think it is possible to connect a small bulb. I'll try. Regards Irek

Hi, I am preparing CAD model of Daga III. Here are some cylinder details. Best regargs Irek

Hi, A couple of pictures concerning Daga III construction can be found in the album: http://www.itc.polsl.pl/iszczygiel/hobby/gallery/steam/ Best regards Irek