My Buddy's new in line 4.

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Terry Keeley

Terry Keeley

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Jul 24, 2002
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My toolmaker buddy Rudy has been busy building a new in line 4 cylinder, he built a V8 from plans previously.

normal_Rudy_s_4_cylinder.jpg


He added an axis to the spindle of his lathe to grind the O-1 cams we heat treated in my kiln:

https://photos.google.com/share/AF1QipNQBDKfINgoXU2f_nPvcX800qncf7Q5KnS65HoHn0Sr_LTfhQaiK3hQNJkVASAhhw?key=czBicWxHLWs0Zm9IX1JSQkYwNDM1Nk9IS1NxTlN3
 
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Will do. Here's video of his V8 running in case you missed it:




He plans to put the 4 cylinder in a Chris Craft or something similar.
 
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That's just awesome stuff Terry! If I only had the $$ I'd love to do a vintage model Chris Craft with something like that under the hood! Hey wait, what's the current US to Canada exchange rate? Lol
 
Hi Terry. Your friend is a very skilled machinist. How is the cam profile actually ground? I see the controller gives partial rotation to the spindle. How is the grinding wheel slide movement controlled? In the past I saw the profile created using a profile template to control the slide. Interesting that a steady rest wasn't needed. Please educate an old guy. Thanks Jerry
 
Jerry Betke said:
Hi Terry. Your friend is a very skilled machinist. How is the cam profile actually ground? I see the controller gives partial rotation to the spindle. How is the grinding wheel slide movement controlled? In the past I saw the profile created using a profile template to control the slide. Interesting that a steady rest wasn't needed. Please educate an old guy. Thanks Jerry
Click to expand...

Yup, Rudy's my "consigliere" for a lot of my machine work, I'll often call him up and it usually goes something like "OK, I have the rotary table zeroed in"!

He has x, y & z axis' set up as well as the spindle (A?) so as the cam turns the carriage in feeds the right amount to cut the cam profile. He grinds about 0.0005" (1/2 thou) per in feed.

I found some other videos of him working on the block from last year:





ps: You're not old!
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Hi Terry. Is this a hobby for Rudy or does he have a machine shop business? CNC sure allows for a lot of milling to be done accurately on a single machine with minimal setup. Did Rudy make all of the holding fixtures? My brother-in law owns a CNC machining company. I always am amazed at the multiple complex machining he can do to a part with a single setup. Some RC boating friends and I were having lunch together on Tuesday. Our waitress recently had immigrated to America from Albanian. Because one of the guys is in his nineties and still active, she commented on how long people live in America. She ask me how old I was and commented that in Albania someone my age would have died from old age!!!!! So,I have another good reason to be an American, even if my technology level is behind the times. I am still building wood boats and loving it!!!!!! Cervical spine surgery has put me a little behind on a new 1/8th scale for MIke. With a little bit of luck It will be in the water in the spring. Have a good one Terry and thanks again, JB
 
Jerry Betke said:
Hi Terry. Is this a hobby for Rudy or does he have a machine shop business? CNC sure allows for a lot of milling to be done accurately on a single machine with minimal setup. Did Rudy make all of the holding fixtures? My brother-in law owns a CNC machining company. I always am amazed at the multiple complex machining he can do to a part with a single setup. Some RC boating friends and I were having lunch together on Tuesday. Our waitress recently had immigrated to America from Albanian. Because one of the guys is in his nineties and still active, she commented on how long people live in America. She ask me how old I was and commented that in Albania someone my age would have died from old age!!!!! So,I have another good reason to be an American, even if my technology level is behind the times. I am still building wood boats and loving it!!!!!! Cervical spine surgery has put me a little behind on a new 1/8th scale for MIke. With a little bit of luck It will be in the water in the spring. Have a good one Terry and thanks again, JB
Click to expand...

Rudy just retired from 40+ years as a toolmaker and has run boats almost as long. He built the gearbox in my little 20 mono originally for a K&B 21 and ran it in the early 80's. He recently converted his lathe to CNC using ball screws and stepper motors from eBay running on "hobby" Mach 3 software. He just added a 4th axis (the spindle) to grind these hardened O-1 cams for his 4 cylinder.

I was chatting today with a very talented guy from Ukraine that made his own 27cc engine and who chromes and grinds liners and makes pistons, here's a couple of videos from his YouTube channel:



Amazing what you can do in a home shop these days.

Yes, we're very fortunate in this part of the world to have the standard of living that we do, many are not so lucky. Just ran into a gentleman in Barbados who is 100 and flew bombers in the second world war! I worked with his son who is now 70 and retired 10 years ago.

BTW, 60 is the new 40, 80 is the new 60 and 100 is, well...
default_smile.png
 
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Friends just teaching a 95 your old ex Lancaster Bomber pilot to fly again as we speak! My mate reckoned he's the best student he has trained in the last 25 year's of teaching flying! And has even taught him a thing or two!!
 

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