Recent content by timo_gross

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...

Here 8mm drill rod is for a 114 mm length almost same price as the drill, more expensive than a cheap drill. I think here "drill rod" is not same thing. https://www.suspt.com.tw/drill-blanks-b-102.html :cool:

Pulling the plough. Two engines: One on each side. That is why it is "unfinished" because AlanS will need to built another one. :D Just getting aware how detailed the model ist. Really funtastic.