Simple approach here, we have eBay comms to Jin and will ask him the test questions: (I better do it any case before I run the engine!!)ġ) Is the boiler pressure-tested to at least 10bar? (That's 2x the advertised valve pressure, standard safety factor). Jin pays back when he knows that the buyer is honest, this is why he asked Bernhard to send me the machine, and unfortunately for him, some buyers are not like Bernhard and ask their money back for false reasons and keep the products. As it can't be dismounted, if it is not tested before packaging, the result is a lottery and Bernhard lost. I am not a specialist but I have a significant collection which let me say that the conception of this machine is very original and does not allow any tolerance.
The displacement between forward and reverse is 4-5 mm, the maximum speed id found on less than 1 mm so if there is as I guess it any mistake of 1 mm, the admission does not correspond and the result is teh one we note. This axle is cylindric and it has a small flat (1 mm depth) which is supposed to make the steam transfer from the pipe to the cylinders on one side or another. The problem with this machine is that, in its conception, you can not open the reverse box to see if the axle, very accurately machined besides this,correctly or not aligned in both directions face to admission holes in the cylinders. I have checked the mechine sent by Bernhard and confirm what he says, there is no reverse. Jin sent me the broken parts (water level foot).
I have not the M29C but this steam plant and I confirm I have no problem with it, as shown in my videos. Sorry Carl, my Englsh is too poor to make good videos in this langage and there are already good English videos but none in French Any other info about this engine and steam plant is appreciated. Rafael posted a video of what looks like M29 going very nicely and although I don't have translation for any of the audio except Bonjour, I think he is happy with what it does. So I hope mine will not experience the same troubles. This thread started out talking about Bernhard's engine called Q3B (10 x 12) and I changed the subject a little by asking about Jin's 2-cyl steam plant which I believe has the M29C (12 x13) or later. I am interested because I have one of Jin's 2 cyl engines coming in the mail to Hawaii, and I do hope it will work, because I have no help here, and very little steam engine experience. But it is worth a little follow-up to see what went wrong? Sounds like Bernhard knew what he was doing to fix things but it just got out of hand so maybe Rafael can tell us what really was the problem and could it/did it get get fixed? Good to hear at least there was an honest refund. I better get busy and build it.īernhard's story of his bad time with the Q3B engine must have a been a disappointment for Bernhard a well as Jin. Cecilia will be light weight and easily driven, and I bought 60mm 3-blade prop for her.so. I have not much steam experience (I'll tell about my Mildura in a separate post) so I am taking a guess that this engine will be suitable for the launch I am making. I don't know how long this engine has been in production and it differs from the others in this post, but if anybody has opinions or experience with it I would love to hear it.
#Microcosm steam engine full
This will be a 50" strip-planked shallow draft hull, originally designed for RC sailboat (Google Tippecanoe T50) but I will add full length keel/skeg and a barndoor rudder. It holds 420 ml water, and I don't intend to add a feed pump so it's just a guess right now as to whether I will get a decent run time (10 minutes I hope) from it on my new boat. But I think Ed is using just air, so no word about the steam plant as an entity. I spoke to a man in Florida who has the engine (he called the M29, but I don't know how) and says it runs very smoothly. The 2 cyl slide valve is spec'd at 12mm bore and 13mm stroke. I am taking a little gamble that Jin at Microcosm is making a good product and I just ordered this steam plant shown in the photos below.
Well I just joined the forum so I can post almost the same question.
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