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Pretty soon Marv is going to jump in and talk (yell) to me about planning and thinking things through.
Re: Monitor Steam Engine « Reply #375 on: Today at 03:45:26 PM »QuoteQuote from: zeeprogrammer on January 31, 2016, 10:10:28 PMPretty soon Marv is going to jump in and talk (yell) to me about planning and thinking things through.Would it make a difference if I did?
Quote from: zeeprogrammer on January 31, 2016, 10:10:28 PMPretty soon Marv is going to jump in and talk (yell) to me about planning and thinking things through.Would it make a difference if I did?
Off to see Chris.Hope he likes my cookies.
Quote from: zeeprogrammer on January 31, 2016, 11:10:33 PMOff to see Chris.Hope he likes my cookies.As I did. But I forgot the cookies. (Well I didn't forget...I don't have any! )So I looked/studied/investigated his approach.I see that when he did (what I call the outer hub) he drilled/reamed for the piston rod and also did the drilling/threading for the gland.I don't see the work done for the (what I call the inner hub but is now known to be as the flange). i.e. the part of the part that acts as a register to the cylinder's bore.What am I missing?I'm thinking I'm good to go to make the flange and drill/ream the piston rod hole. Leaving the gland to figure out (for which I have some Marv non-approved ideas).Chris...I wish I could send you some real cookies...but T won't make them again until Christmas.
I left the inner hub a touch on the small side. No matter what, there will be some errors (tolerances in enginerspeak!) In the parts. So I leave the inner hub small and use the piston and rod find thier own center for the assembly, and tighten the hub bolts to hold it in place.Even if you drill the gland nut as tightened perfectly, how good were the threads aligned in each piece? When the nut is a partial turn farther out with packing or o ring in place, how is it aligned then? Wont be same. Leave play in key places to let you adjust fit as assembled. Get it hot with steam, and prts too tight, it will bind up. Look at the SR71, it leaks like a puppy when on the ground
I'd expect no less, 14 pages of indecision for a perfectly completed part.
Oh! Did you make some progress Zee? I hardly notice with all the banter we been doing.
Nice! Keep the parts coming
and you can have another hopping stinkie, or whatever you call it...!