Author Topic: Flyboy Jim's PM Research #5  (Read 10470 times)

Online propforward

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Re: Flyboy Jim's PM Research #5
« Reply #210 on: March 16, 2020, 02:58:39 AM »
Coming along very nicely Jim.
Stuart

Offline Ye-Ole Steam Dude

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Re: Flyboy Jim's PM Research #5
« Reply #211 on: March 16, 2020, 12:17:47 PM »
Hello Jim,

Looking really good, should not be long now until you have a runner.

Have a great day,
Thomas

Offline TerryWerm

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Re: Flyboy Jim's PM Research #5
« Reply #212 on: March 16, 2020, 01:07:18 PM »
It's looking great Jim. Good to see you making progress again!   :ThumbsUp:
----------------------------
Terry
Making chips when I can!

Offline Flyboy Jim

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Re: Flyboy Jim's PM Research #5
« Reply #213 on: March 17, 2020, 01:44:29 AM »
Thanks guys.  :)

Nice afternoon today, so Ann and I took the new Miata out for a little "social distancing". Still had time when we got back to get a little machining done.

Milled the mating surface for the Crankshaft Bearing Caps.



Then milled the ends. I tried a 3/8" end mill first, but wasn't happy with the finish. Then used my flycutter which worked great.!



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 crueby

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Re: Flyboy Jim's PM Research #5
« Reply #214 on: March 17, 2020, 01:50:58 AM »
Going great!   :popcorn: :popcorn: :popcorn:

Offline Flyboy Jim

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Re: Flyboy Jim's PM Research #5
« Reply #215 on: June 16, 2020, 03:27:30 PM »
Not much work going on lately. However, I need the mill for another use, so I finished up milling the vee groove in the Valve Slide Caps before changing the setup.

I made some little standoffs to get the height I needed and then was able to mount the Valve Slide Caps and mill the vee groove just like I did for the Valve Slide Bearings (no picture). It took a couple of tries to sneak up on the clearance I needed for the Valve Slide.





Probably won't get much more done this summer, but at least I made it to a good stopping point.

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

Online Admiral_dk

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Re: Flyboy Jim's PM Research #5
« Reply #216 on: June 16, 2020, 09:11:02 PM »
Quote
Probably won't get much more done this summer, but at least I made it to a good stopping point.

Why - are you going to 'live up to your moniker'  8)

Enjoy your summer  :cheers:

Per

Offline larry_g

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Re: Flyboy Jim's PM Research #5
« Reply #217 on: June 17, 2020, 07:13:43 PM »
https://www.guhring.com/Support/Technical/Tap-Drill-Sizes

Above is what I consider one of the best tap drill charts I've found.  It gives a range of tap drills that will give an expected percentage of thread depth.  Unfortunately it starts at #3 fasteners.

I am just finishing up a PMR #4 and am looking for the next project.  I really like what your doing but this small stuff really scares me.  I may try something in a barstock design.

lg
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Offline zeeprogrammer

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Re: Flyboy Jim's PM Research #5
« Reply #218 on: June 17, 2020, 10:53:46 PM »
but at least I made it to a good stopping point.

Is there such a thing?  ;D
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
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Zee-Another Thread Trasher.

Online propforward

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Re: Flyboy Jim's PM Research #5
« Reply #219 on: June 18, 2020, 01:35:53 AM »
Nice work Jim, looking very nice.
Stuart

Offline Flyboy Jim

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Re: Flyboy Jim's PM Research #5
« Reply #220 on: June 19, 2020, 02:03:28 PM »
Thanks guys.

Per, I'll definitely be doing some flying this summer, as well as some outside garden work. Also camping as things start to open up. Must stay vigilant though.

You're probably right about stopping points Zee. Maybe some are just better than others.  :)

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

Online propforward

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Re: Flyboy Jim's PM Research #5
« Reply #221 on: October 01, 2020, 03:54:44 AM »
 :popcorn:

Cool weather approaches.......just wondered if this project was calling yet?

Ive enjoyed the build very much so far.
« Last Edit: October 01, 2020, 04:00:35 AM by propforward »
Stuart

Offline Flyboy Jim

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Re: Flyboy Jim's PM Research #5
« Reply #222 on: October 01, 2020, 03:18:05 PM »
:popcorn:

Cool weather approaches.......just wondered if this project was calling yet?

Ive enjoyed the build very much so far.

Thanks for checking in Stuart. Hope all is going well there.

Actually I did look at my project the other day............thought to myself "now where the heck was I"? The first thing I'll do is read my thread in order to get my head back in the game. I'm just about to the point of having to machine the crankshaft casting and am a little (a lot) intimidated by that.

It's still supposed to be 82 today, so still lots of outside activities calling. Won't be long and that will end.

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

Online propforward

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Re: Flyboy Jim's PM Research #5
« Reply #223 on: October 01, 2020, 03:24:10 PM »
Yes indeed! I like these build logs as much so I can refresh my memory as to what I did, as well as just getting some input and so on. I've been reading back through this one for some ideas, plus thinking about when I can start this engine.

Don't want to rush to welcome winter in for sure! But it's good to start thinking about how to pick back up.

We're getting the chills here, only 50 F for a high today. We'll get a little uptick again and some lovely days, but we're almost past peak colour on the leaves, so won't be too long before I fire up the shed heating and hibernate there - wreaking havoc on the forum with my novice ways and enthusiasm. :D
Stuart