My Growth Rings with Scott Markwood

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JPG
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Conical disc angles

Post by JPG »

Reverting back to the conical disc(s). FWIW the SS conical discs I have are all slightly under 3° (2.7°) rather than the published angle.

On my M VII discs I have the same grit on each disc. Different discs for different grits(4). Their angle is about 1.2°.

Not sure how the tapered holding plate makes much difference? Holes that tight????
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10
E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
edma194
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Re: My Growth Rings with Scott Markwood

Post by edma194 »

"Not sure how the tapered holding plate makes much difference? Holes that tight????"

What do you mean by "tapered holding plate"? And the rest of it?
Ed from Rhode Island

510 PowerPro Double Tilt:Greenie PowerPro Drill Press:500 Sanding Shorty w/Belt&Strip Sanders
Super Sawsmith 2000:Scroll Saw w/Stand:Joint-Matic:Power Station:Power Stand:Bandsaw:Joiner:Jigsaw
1961 Goldie:1960 Sawsmith RAS:10ER
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JPG
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Re: My Growth Rings with Scott Markwood

Post by JPG »

It was mentioned that the plate under the wingnuts was tapered to match the blade taper. Since the taper is so slight, I question the need.

Or maybe I simply mis heard/understood what was said. ???

I have not had one of these in my own hands. (I made one out of a hunk of oak firewood.)
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╟JPG ╢
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10
E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
edma194
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Re: My Growth Rings with Scott Markwood

Post by edma194 »

Interesting thing happening...I didn't recall that tapered plate and wing nut so went to rewatch the video in case mentioned there. Used the link a couple pages back to start the video and it wants me to pay to join the channel to see it. Switching over to YouTube I found the video and can play it for free.

In fact I was thinking of paying some dues for this channel because I find it so interesting and useful, maybe I'll just go ahead and do that. It is rare that a cheapskate like me would do something like that even with it being a trivial sum.
Ed from Rhode Island

510 PowerPro Double Tilt:Greenie PowerPro Drill Press:500 Sanding Shorty w/Belt&Strip Sanders
Super Sawsmith 2000:Scroll Saw w/Stand:Joint-Matic:Power Station:Power Stand:Bandsaw:Joiner:Jigsaw
1961 Goldie:1960 Sawsmith RAS:10ER
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jsburger
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Re: My Growth Rings with Scott Markwood

Post by jsburger »

edma194 wrote: Wed Dec 01, 2021 4:51 pm Interesting thing happening...I didn't recall that tapered plate and wing nut so went to rewatch the video in case mentioned there. Used the link a couple pages back to start the video and it wants me to pay to join the channel to see it. Switching over to YouTube I found the video and can play it for free.

In fact I was thinking of paying some dues for this channel because I find it so interesting and useful, maybe I'll just go ahead and do that. It is rare that a cheapskate like me would do something like that even with it being a trivial sum.
Scott mentions this on most of his videos. The weekend videos are always available for free. The mid-week videos he calls Stumped Q & A are free for one week. Then they go private for channel members only.
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thedovetailjoint
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Re: My Growth Rings with Scott Markwood

Post by thedovetailjoint »

Hey JPG. The point I think I was trying to make is that the angle that the base of the jig holds the knives is designed to produce a 45 degree angled bevel. Because the disc is beveled and the back face of the tapered knives are not paratonnerre the face of the knives, the angles were calculated by Shopsmith to allow the jig to be used without tilting the table, as we do when sanding the edge of wood. This was done so the jig could be used on the Power Station. The question that I’ll admit to being a little coy about is if the jig can be used on non-Shopsmith jointer or planer knives. I’ve answered that question by saying that I suspect Shopsmith would say that it isn’t designed to be used with non-Shopsmith knives, but let’s face it, it would work. The guy who asked the question mentioned that he used it on DeWalt planer knives, and I took that opportunity to mention that most portable planer knives aren’t ment to be sharpened because they don’t have height adjustment. Anyway, the fact that I could see myself sharpening my Delta jointer knives on it shouldn’t be an endorsement of the activity. Am I making any sense? I think I’m sleep deprived! Scott
http://www.Youtube.com/user/MyGrowthRings
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JPG
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Re: My Growth Rings with Scott Markwood

Post by JPG »

Ya yo making sense! Re the grind angle, adjusting the table angle will allow differing grind angles for different species. I must have misconstrued what you said. When I made my oak jig, I cut the slot at 45° which will create a slightly more aggressive grind angle with the 2.7° disc angle.(47.7°)

Power Station? Aux table/rip fence/conical disc. Good way to get a slow grind speed? Trying to get my mind wrapped around that setup! All that vibration!!!

Sleep deprived @ 16:00 ? ? ?
╔═══╗
╟JPG ╢
╚═══╝

Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10
E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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Chad
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More with Jim McCann, Craftsman, Creator, Engineer & Shopsmith Legend: Part Two

Post by Chad »

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My Growth Rings with Scott Markwood

Watch it here: https://youtu.be/51jRiMJXi-A

Continuing our conversation with Shopsmith power tool company engineer, Jim McCann, we move on to improving on old tool designs and the importance of a "weak link" in a powertrain. Jim has been a friend and woodworking mentor since the 1980's and has been working at and for Shopsmith for 42 years!

If you enjoyed this, here are a few videos you might also enjoy"
🎬 Here's Part One of my chat with Jim: https://youtu.be/mXMhBdZtaQo
🎬 Here's Jim's shop tour with Nick Engler: https://youtu.be/O8-fU850MZg
Last edited by Chad on Fri Dec 03, 2021 10:48 am, edited 5 times in total.
HopefulSSer
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Re: My Growth Rings with Scott Markwood

Post by HopefulSSer »

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Greenie SN 362819 (upgraded to 510), Bandsaw 106878, Jointer SS16466
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Chad
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Why so few Shopsmith tools in YOUR shop, Jim McCann?

Post by Chad »

138.jpg
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My Growth Rings with Scott Markwood

Watch it here: https://youtu.be/7GuQMjgt3rk

We wrap up our conversation with Shopsmith power tool company engineer, Jim McCann, and we start off with a comment that I heard from several people who saw the tour of Jim's shop on the Workshop Companion channel. From there we talk about tools that Jim wishes could have made it to market and a few final thoughts. Thanks for joining us in this conversation.

If you enjoyed this, here are a few videos you might also enjoy
🎬 Here's Part One of my chat with Jim: https://youtu.be/mXMhBdZtaQo
🎬 Here's Part Two of my chat with Jim: https://youtu.be/51jRiMJXi-A
🎬 Here's Jim's shop tour with Nick Engler: https://youtu.be/O8-fU850MZg
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