Search results

Made the fins. Checked the gear mesh. Small gear was re-done (what 6 times? :) ). I made the flywheel from a disc of round stock that I found on the pile, and the flywheelpulley came from a piece of 2" bar stock. Flywheelbushing I skipped yesterday. It is still pending..... Cutting the fins...

Haha, poor you! Did you already cut the other part? 30% of my mistakes are incompetence, 80% impatience, 10% poor or wrong equipment and at least 20% someone elses fault. The remaining 70% is casued by my poor math performance and insufficient thinking ahead. :cool: In this case it is obviously...

Saturday afternoon, I am not very fast. Slowly doing one by one part. (mislpacing tools and braking M2 taps 😥) The cylinder heads are only "half done". Waiting for a tap to come that has 1/4-32 TPI. I did not cut them off. Who knows if the extra stock is useful when drilling the holes for on...

That is a nice collection of cross sections. Were those domed pistons made from cast iron? My guess would have been that this is related to pattern removal and beeing able to cast concentric round pieces easy.

As long as I can grind it all to a flat I call it good (enough)! :cool: ( Someone is making fun of my welding skills? I put a mask on his head and a torch in his left hand; switch on the welder and wait what comes up next :cool:. Only once it resulted in a nice TIG weld. Seriously, if "good...

Not very "model-engine" :cool: . I occasionally saw a Lanz running and it always nice to see."Marcus Lanz" is all I get when I search for "Lanz" on Youtube. That is funny and sad at the same time. p.s. what is the meaning of "Glühkopfzündung" with regard to TV-talk shows?

Or buy a welding robot and get one of your grandchildren into programming. p.s. I bought a cheap chinese TIG welder a while ago. It confirms what was said above about practice and muscle memory. But... my horrible welds (including inclusion, and cooling cracks) are often still doing the job...

Very inspiring, that those old projects are "re-visited" and not lost. Keep pushing it.

I was not confident about the soldering of cast iron (maybe some other time). The crank case will be made from aluminium, so I thought I give threading a try. The bore was quite bad after turning. I reamed it with an adjustable hand reamer, hopefully good enoug. The wall thickness is not...

I admit I overlooked that. Depending on required precision I think to get something usable "is possible". Some handfiling and fitting will be required. I am curious how the OP will solve it :cool:

Wait a minute! What is an aircraft bearing? (serious question). I would a) grab tube of adequate size and material b) cut tube in two halfes @ desired angle c) make pin that fits inside tube c) put tube cut-offs on pin d) pin/glue/weld/solder or whatever the three pieces together. Done...

I made the carburetor body on Monday. Throttle and jet took a while, small stuff. The needle is not done yet. Is that a part that needs to be moved a lot? I could make it from a cap head screw, but it would require a hex key to adjust. Or I have to make the complete thing. Next up the...

No really there seems to be a big F on it. But I think while I was trying to get a decent picture there was an Explanation for the mystery posted. (still no idea where it came from) Yes, approx. 6.5 mm.

What a mess. I use 5/127" or decimal fractions of it :). Found a drill with an F in my workshop yesterday. No idea why I have it or who gave it to me?

I probably would have bought an angle plate to machine the angle plate :). Makes no sense? ....yes that happens when I make my buying decisions.... Rubbish idea: mill slots first, weld another angle plate and then you can clamp one angle plate to the other angle plate. Improve the surfaces as...

It should be as "laid back" as you feel happy with. I constantly have the feel that I get nothing done :). And every time I try to become more efficient ( aka rush) it fires back and ends in rework, or damages. To me it looks like you proceed at quite a good pace.

p.s. just saw; "original poster" used #17" there is a zip file with the code. (I could download it to my computer today and it also compiled fine on my Arduino IDE) Hello, unfortunately there are a number of different versions around. All of them appear to be wrong. 😥 :) (at least the ones I...

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...