Author Topic: Beginner Engine Plans??  (Read 10397 times)

Offline Bear

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Re: Beginner Engine Plans??
« Reply #75 on: June 21, 2020, 02:11:05 AM »

... Bottom line, have fun with it!

Will do. Thanks.

Offline 90LX_Notch

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Re: Beginner Engine Plans??
« Reply #76 on: June 21, 2020, 04:18:23 AM »
Wish you guys would have said, just get a 5/16" reamer for use on most of the engine's flywheels  :).

Easily done by scaling each engine so that it's flywheel will accommodate a 5/16 reamed hole.
Proud Member of MEM

My Engine Videos on YouTube-
http://www.youtube.com/user/Notch90usa/videos

Offline Bear

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Re: Beginner Engine Plans??
« Reply #77 on: August 15, 2020, 01:24:26 AM »
Update: Got most of the parts almost done; except for hole drilling, some threading and of course fitting. Now I am trying to figure out the best way to drill and tap a shallow hole on the flat of my cylinder for a pivot rod. The depth is only to be no more than 3/16", and not perforate through into the cylinder wall. I guess I need a bottoming tap and a drill with minimal point to it. Any other ideas or tips?

Offline crueby

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Re: Beginner Engine Plans??
« Reply #78 on: August 15, 2020, 01:42:12 AM »
Bottom tap is usual way, if you have a broken tap you can even up the end on a grinder (keep it cool by dunking in water frequently, the tap that is) and use that after starting the threads with a normal tap. Biggest thing is to be sure not to let the tip of the drill break through into the bore. Gotta stop short, or it may dimple into the bore.


Got pictures of the progress?

Offline Bear

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Re: Beginner Engine Plans??
« Reply #79 on: August 15, 2020, 02:02:18 AM »
Thank's crueby. Here is a photo of all the parts I have made so far. Like I said, still have a few things to do before fitting.

Offline Bear

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Re: Beginner Engine Plans??
« Reply #80 on: August 17, 2020, 07:53:27 PM »
Crueby, good idea on the broken tap. I just happened to have a pretty new 6-32 that I broke on it's first use (wasn't too pleased at the time). I ground it down and threaded the pivot hole. Worked great. Now i have a 6-32 bottom tap   :).

Time to get on it, and get this engine done.

Offline crueby

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Re: Beginner Engine Plans??
« Reply #81 on: August 17, 2020, 08:04:44 PM »
Crueby, good idea on the broken tap. I just happened to have a pretty new 6-32 that I broke on it's first use (wasn't too pleased at the time). I ground it down and threaded the pivot hole. Worked great. Now i have a 6-32 bottom tap   :) .

Time to get on it, and get this engine done.

Excellent!   :cheers:

Offline Bear

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Re: Beginner Engine Plans??
« Reply #82 on: August 25, 2020, 01:37:36 AM »
Almost done. Just need the air fitting. Used my air compressor, just holding the nozzle over the intake port, and it ran great!  :)

I was focused on function over form, so the finish is not real good. It is made of aluminum and steel.

I would like to give credit to Steve of Steve's Workshop (http://www.steves-workshop.co.uk/steammodels/simpleoscil/simpleoscil.htm). His plans were what I used (although I deviated some, especially as to the materials), and he was extremely helpful in answering some questions by email.

Of course, the forum members here were very helpful. Thank's.

Here are some photos.
« Last Edit: August 25, 2020, 01:49:00 AM by Bear »

Offline Admiral_dk

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Re: Beginner Engine Plans??
« Reply #83 on: August 25, 2020, 12:31:40 PM »
The first is always special - so congratulations is in order  :cheers:

Any change for a video ?

If you need to ask - shoot one (maybe with phone) and upload to youtube - place link here to it and remember to make public or just for this forum.

Best wishes

Per

Offline Bear

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Re: Beginner Engine Plans??
« Reply #84 on: August 25, 2020, 02:30:38 PM »
Thank's, Per. Once it is complete, I will consider making a video, and if posted, it will be for this forum only.

Today, my goal is to get the intake done. Need to go to the store to see what is available for fittings, or will just make my own.

Offline Flyboy Jim

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Re: Beginner Engine Plans??
« Reply #85 on: August 25, 2020, 02:35:00 PM »
Well done Bear.  :ThumbsUp:

Jim
Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Offline Bear

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Re: Beginner Engine Plans??
« Reply #86 on: August 25, 2020, 03:05:05 PM »
Thank's, Jim. Good to hear from you again.

Offline Bear

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Re: Beginner Engine Plans??
« Reply #87 on: August 26, 2020, 01:28:24 AM »
Got it completed with the air fittings. I am using a pressure regulator off my compressor, and I like the way I can make it go from very slow to fast and back again. Neat to see it going slowly.

Now I am hooked. Next, I am thinking stirling engine  :).

Online steamer

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Re: Beginner Engine Plans??
« Reply #88 on: August 26, 2020, 02:14:54 AM »
Congrats man!!!!
Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Bear

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Re: Beginner Engine Plans??
« Reply #89 on: August 26, 2020, 02:29:16 AM »
Thank's, Dave.

 

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