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I did redraw most times in my computer, then I use the CAM software to give me the references. Now that I think of it? Without a CNC and just the DRO a posted G-code can still be very helpful and sufficient. You can be your HNC (human numerical control). The Code is not really complicated to...

That is odd. The HSS blanks I bought from SUS were always straight (as far as I could measure or see) How long do they need to be? The ones I have are 57 mm long. A pack of 10 costs about 10 USD. Can buy them one by one. https://www.suspt.com.tw/drill-blanks-b-102.html p.s. maybe they got wet...

The question was more a general thought, if anyone who reads it might have tried it. Because I was cheating so far. Running this "sandwich" without any gasket. In my case for compressed air with no load on the engine this was fine. Does not give big trouble. I found some very thin teflon sheet...

The cam shaft gear was made today. (from some cold rolled mystery steel) I have a 0.5 module hob, i decided to go with that. 0.5 module gears compared to 0.528 module gears (aka 48 pitch) have little smaller teeth. So I adjusted the counts from 30/60 to 32/64. That pair would have a center...

In the Elmers Engine that I made a plate like this is in the design. (visible sandwich) it can be only 1 or 2 mm thick. Maybe a shallow pocket is an option. You could clamp it with the steam chest, it would not be visible, and not require much extra space, not require glue (Maybe I am...

I am not so sure, I think buying one or ten of those engines would have been the far cheaper option, compared to start making things by myself. But then again, I do not want to have the engine, I wanted to make one. Is scaling one of the "too large" plans an option. Should be easy enough. Just...

Looks like a foamy slag coating (skull) on the cruicible, not the cruicible material. You can try to cut some slit with a dremel tool or stone cutting disk (careful the dust is not healthy) and chisel the skull out with a small chisel. Very easy to brake the cruicible in the process. For a clay...

So it is possible to get a part e.g. like this one out of a screw machine 90 min after receiving the drawing? I have no insight how it actually works . I was under the impression that the cams need to be made to specification of the part. And that for certain shapes form tools had to be made...

Maybe that is of interest. (I found it fascinating) The cams are basically the G-code of the 1940ies?

A few minor changes I am taking the feedom to do. e.g. using my existing metric tooling. (the adapter will stay). POM machines quite nice, it will stay probably round enough. Will use a bar of black POM to make the cap. :cool:

I necked down some Endmill to cut the lower cam lobe. Chatter was not good, made some big marks on the part and during the 2nd approach broke off the DIY cutter. I ended up with something that looks like a cam shaft, but might not be one. ( I will see) p.s. it is make from cold rolled...

raspii and Jasonb you saved me a lot of head scratching.

This is probably some feature that would not have made it into the original plan, because it is supposed to be doable wiht a lathe and drill press only. Making those slots would be difficult. But my cap will probalby milled anyway, so slot design is likely happening. I cam across a small omron...

😥 maybe I should go sleep and look into that another day, mixing up the camshaft and crankshaft all the time. (maybe because I have no clue about it ). Part2 breather cap. Cancel the breather tube and will thread the top plate for it. if it does look too much like a steam dome (because of size)...

You are correct the crank shaft is not 0.25" (do not know how I came to this) So far crank shaft change to 8 mm. (that makes the adapter plate "useless" :cool: ) I made two new adapters, (one is lost forever in the chip tray of the lathe, or under the lathe or somewhere) the other is on the...

I am not really confident, that this will not become a never finished item. I decided to start anyway. I also took the decision to start a parallel thread, because I do not want to clutter up Brian Rupnows thread. I am following video series by Andrew whale and since April Brian Rupnow. (never...

I guess the lifting weight is limited by the strength of the typical Lego Mini figure :) and the rope. Anchor bolts are M2 threaded into the wood base directly (good enough). The original (or typical others) had no counter weight there is a long column in the middle taking the load into the...

Haha that is mean in "one of the comments" :cool:. Let me guess (without context), GreenTwin was refering to control voltage for field equipment. Coils for valves, motorized valves, small blower fans and such things. 220V or 110V. Is lower AC voltage in use? Greetings Timo

Definitely not quiet in this case, as it would have been easy to "catch the wrong fish" in the internet for me. :) The drill blanks are HSS all hardened ready to be "converted into a drill" (or boring bar, dovetailcutter etc.), the price difference (to a drill) is only 20 Ct or so, so no point...

If I am getting upset about something "false" for fact or in my view ( sometimes can be blurry, a misunderstanding or I am plain wrong ), I try to stay silent. :cool:Me beeing upset does not make it easy to stay "neutral, diplomatic, polite and respectful". So I try my best to "shut up and bear...