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Brian Rupnow
Design Engineer From Barrie, Ontario, Canada
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Brian Rupnow posted the thread O-ring groove depth--Viton ring---another look. in A Work In Progress.I have built a number of 1" bore internal combustion engines, using Viton 0-rings. The o-rings I use are 1" o.d. x 0.070" cross section... -
Brian Rupnow replied to the thread Cutting a cam with radiused flanks.Pileskis is correct.--It would have been a more secure set up if I had held the shank of my new cam cutting tool in an R8 holder. I only...
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Brian Rupnow replied to the thread Demoiselle boxer twin.I am impressed with your build!!---Brian Rupnow
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.I think it is always better to have the shaft supported on both ends. Of course, that being said, I have made at least 50 cams with the...
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.And here is the Randall Cox method of cutting a cam using a boring head running in reverse. This method again requires many, many cuts...
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.Just by coincident, I found this video of a man making a cam lobe using the Edgar Westbury/Bob shores offset turning jig.
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.Jason--I lay in bed last night trying to see how your method of holding the blank in the three jaw chuck on the rotary table would work...
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.I then moved the material over to my lathe and polished it with some 200 grit paper.---What do I think?--I think this is absolutely...
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.After cutting the two flanks in the previous step, I moved over to the 3 jaw chuck mounted on my rotary table and machined away the...
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.I turned a piece of 1" diameter round stock to an outer diameter of 0.764" as called for on the drawing, mounted it in my machine vice...
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.So, here we have a 3D model of the larger cam cutter, which will cut a cam the same size as the one used on my T-head engine, and the...
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.Vietti--I don't run my mill in reverse with a boring tool in it, because I am afraid the boring head will unscrew itself apart and cause...
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.This morning I decided to make a dedicated tool to cut a slightly larger cam than I made yesterday. The cam I have chosen to be my...
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.I'm happy that the new cam cutter worked. The cam I made is serviceable, and it's an exact match for the cam I used in my flathead...
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Brian Rupnow replied to the thread Cutting a cam with radiused flanks.One final bit of magic---I couldn't figure out how to measure from the centerline of my new cam cutting tool to the tip of the cutting...
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