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Forum topic by Karda posted 10-01-2017 02:13 AM 477 views 0 times favorited 11 replies Add to Favorites Watch
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Karda

715 posts in 336 days


10-01-2017 02:13 AM

I made a carbide tool with a round cutter, I was wondering what are the square and the square with a radius used for thanks


11 replies so far

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Rick_M

10279 posts in 2162 days


#1 posted 10-01-2017 02:46 AM

Same as you would use a flat scraper. You can plunge or rough a blank, square off ends of a spindle, shear scrape.

-- http://thewoodknack.blogspot.com/

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Karda

715 posts in 336 days


#2 posted 10-01-2017 03:04 AM

ok thanks

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hairy

2549 posts in 3315 days


#3 posted 10-01-2017 06:07 PM

I use a square cutter when making mortise and tenon joints, as in fitting the top into the bottom of a turned box.

Also for tenons to fit in a chuck. I don’t have any dovetail jaws, all serrated jaws.

-- stay thirsty my friends...

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LeeMills

438 posts in 1084 days


#4 posted 10-02-2017 12:15 AM

I have only used my square for roughing a bowl blank. Working from the tailstock end to go into side grain rather than end grain; hopefully straight but no more than 45* before switching to a bowl gouge.
Harry’s use of fitting a box lid sounds good also.

-- We cannot solve our problems with the same thinking we used when we created them. Albert Einstein

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Karda

715 posts in 336 days


#5 posted 10-02-2017 01:44 AM

OK THANKS, will be my next too. What is the difference between the square and square with radius

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LeeMills

438 posts in 1084 days


#6 posted 10-02-2017 04:52 PM

I only have the straight. For what Harry suggested (boxes) you would want a completely flat edge, same for the inside bottom corners if that is what you want. I would think the radius would be easier for sheer scraping and general hollowing since the “corner” is back a bit and less likely to grab.
Maybe someone else uses both.

-- We cannot solve our problems with the same thinking we used when we created them. Albert Einstein

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Karda

715 posts in 336 days


#7 posted 10-02-2017 05:13 PM

ok thanks, what size should I use on a 3/8ths shaft, I am metric challenged

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LeeMills

438 posts in 1084 days


#8 posted 10-03-2017 01:45 AM

I would use 1/2” bar for the additional strength. You may have to grind the tip back slightly for clearance but that is no problem. 1” = 25.4mm so my cheat is 1/8” = 3mm, (1/2” = 12.5); close enough for woodworking in most cases. If you already have the 3/8 bar then maybe 9 or 10 mm, not sure of all the sizes they come; you can also use the 12 or 12.5 and already have a small clearance. A mm each side ain’t much. :)

-- We cannot solve our problems with the same thinking we used when we created them. Albert Einstein

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Karda

715 posts in 336 days


#9 posted 10-03-2017 02:12 AM

I measured my round tool it is about 5/8ths I used calipers so it if accurate. I think it is 15MM but don’t trust my memory any more

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Madrona

48 posts in 677 days


#10 posted 10-03-2017 05:25 PM

The radius is less aggressive than the square. That said, if I use one it’s usually the square.

-- Living In The Woods Of Beautiful Bonney Lake, Washington

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Karda

715 posts in 336 days


#11 posted 10-03-2017 06:11 PM

ok thanks

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