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Heron's Aeolipile
Divided he ad:
Ok.... Sorry I didn't make it too clear... I wasn't thinking of hard clamping, just nipped up. So that with lubrication it would move with the pressing action. I'm sure that it could work?!?! I'm sure that I have some new landrover valve springs somewhere that could be used under the plate instead of the packers pictured in my scrauling?
The distorted hole has already been noticed from the forms I tested on Ian... I can remove the spigot if needed, but the holes are going to have things soldered onto and over them so they may yet need to be bigger?
I was going to make it from steel plate because I have it... And I want it to last... Once I get it working I plan on making a few for all sorts of things :D
I am reading everything that everyone is saying and I'm going to make a vey big list of all the points raised so far and sort through them... everything from plates to materials to forming action will be tried and tested... I will get a spere or 2000000000 made.... Well nearer 100 maybe?! I've got all sorts of little plans for them in the long run.... I just got to get it right!
I'm now looking at this as a summer completion project as opposed to the winter one originally envisaged.... Still I plan on enjoying the hell out of myself trying to get it right :headbang: :thumbup:
Ralph. ( Just currently searching tinterweb for stuff! :wave: )
Bernd:
Ralph,
Just went back through the whole thread. I noticed that you have the bottom die held down with a clamps. Now this is just a thought, but have you considered letting the bottom die float. In other words don't clamp it down. I'm thinking that perhaps there might be a small misalignment even though you have that pin in the center.
I would leave the bottom die unclamped, since there is no way it's going to move other than try to line up with the upper die. Take the pin out and try to form one without punching a hole. See if that makes a better part.
From rereading all what was done it seems like an alignment problem between the bottom and upper die.
Bernd
Circlip:
Firstly, I hope you haven't taken any of my comments as a criticism JM, they were in no way intended to appear that way, just another road to Rome/Ancient Greece. Stews suggestion of a "Soft" pressure plate was certainly a good idea. UNFORTUNATELY Ralph has now changed the rules so it looks like a harder one is required ( 100 half shells ? ) :jaw: Yer may have to put the pressure plate at the top, round the punch with your springs sandwiched between a backing plate on bolts with a clearance in the pressure plate and screwed into the backing plate. Just seen HS93's pickkys using a rivveting block, did the same thing for working vents on the Model Maker plan version RTTL (Vic Smeed). The Punch was a ball/pein hammer, using another hammer to strike with, it was at school, and taught me about annealing, and the vents were Copper, Ahhh, those were the days.
Regards Ian.
bogstandard:
No Ian,
It was just me clearing myself of being a bit negative in my postings. It looked like I was saying it was almost doomed to failure, and up to this time, it is far from it. With all these experts on the case now, it just has to work, or a lot of people will be getting ready for redundancy.
John
cedge:
I'm no expert, but it can certainly be done. I know for fact that Karsten modified a pedestal (bottle) jack to make them for his turbines. There was some small amount of rippling at the rims of his earliest work, but it was minor and he did eventually figure out how to beat that problem. His tooling was far more primitive than anything you guys have mentioned in this thread, so don't give up.
I'd be happy to ask him about this project, but he seems to have fallen off the face of the earth recently.
Steve
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