Whirlwind or Sawstop

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Whirlwind or Sawstop

Post by admin »

In his proximity detection video, he alludes to possible damage from triggering it too frequently. I'd assume he is using some type of DC injection braking, which does generate heat.
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robinson46176
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Post by robinson46176 »

I have not seen any mention of the possibility of the flywheel effect of the blade causing the retaining nut to loosen from the sudden stop of the shaft and allowing the blade to keep spinning loosely on the arbor from its own momentum... :eek:
It might require an arbor redesign to be able to lock it.


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Francis Robinson
I did not equip with Shopsmiths in spite of the setups but because of them.
1 1988 - Mark V 510 (bought new), 4 Poly vee 1 1/8th HP Mark V's, Mark VII, 1 Mark V Mini, 1 Frankensmith, 1 10-ER, 1 Mark V Push-me-Pull-me Drillpress, SS bandsaw, belt sander, jointer, jigsaw, shaper attach, mortising attach, TS-3650 Rigid tablesaw, RAS, 6" long bed jointer, Foley/Belsaw Planer/molder/ripsaw, 1" sander, oscillating spindle/belt sander, Scroll saw, Woodmizer sawmill
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JPG
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Post by JPG »

robinson46176 wrote:I have not seen any mention of the possibility of the flywheel effect of the blade causing the retaining nut to loosen from the sudden stop of the shaft and allowing the blade to keep spinning loosely on the arbor from its own momentum... :eek:
It might require an arbor redesign to be able to lock it.


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You mean . . . like . . . uh . . . er . . . the . . Powerpro?:D
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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'/ 10E[/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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robinson46176
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Post by robinson46176 »

JPG40504 wrote:You mean . . . like . . . uh . . . er . . . the . . Powerpro?:D


Not that familiar with that aspect of the PP...
I decided that now was not the time and just sort of quit looking at it much. Too many other places I want / need to put $ $$,$$$.¢¢ right now.

I once saw a classmate in metal shop flip the switch from forward to reverse quickly without having a big 12" chuck tight enough and it spun off and rolled across the floor. :eek: :eek:
It made a lot of noise when it hit the floor (missed everybody). Woke a bunch of guys up. :D


.
--
farmer
Francis Robinson
I did not equip with Shopsmiths in spite of the setups but because of them.
1 1988 - Mark V 510 (bought new), 4 Poly vee 1 1/8th HP Mark V's, Mark VII, 1 Mark V Mini, 1 Frankensmith, 1 10-ER, 1 Mark V Push-me-Pull-me Drillpress, SS bandsaw, belt sander, jointer, jigsaw, shaper attach, mortising attach, TS-3650 Rigid tablesaw, RAS, 6" long bed jointer, Foley/Belsaw Planer/molder/ripsaw, 1" sander, oscillating spindle/belt sander, Scroll saw, Woodmizer sawmill
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JPG
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Post by JPG »

robinson46176 wrote:Not that familiar with that aspect of the PP...
I decided that now was not the time and just sort of quit looking at it much. Too many other places I want / need to put $ $$,$$$.¢¢ right now.

I once saw a classmate in metal shop flip the switch from forward to reverse quickly without having a big 12" chuck tight enough and it spun off and rolled across the floor. :eek: :eek:
It made a lot of noise when it hit the floor (missed everybody). Woke a bunch of guys up. :D


.

There have been some posts describing saw blades continuing to spin after the PP stops. The result of braking action of the PP and loose screws etc.
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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'/ 10E[/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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billmayo
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Post by billmayo »

JPG40504 wrote:There have been some posts describing saw blades continuing to spin after the PP stops. The result of braking action of the PP and loose screws etc.
I found the use of 1 ot 3 additional set screws took care of any arbor becoming loose. I have used a set screw in the older arbor nut. They make many sizes and lengths of set screws for this purpose. I only used added set screws when I saw that I have a problem, not before. Many arbors have no problems. I have became a firm user of blue LocTite when in doubt.
Bill Mayo bill.mayo@verizon.net
Shopsmith owner since 73. Sell, repair and rebuild Shopsmith, Total Shop & Wood Master headstocks, SPTs, attachments, accessories and parts. US Navy 1955-1975 (FTCS/E-8)
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