PMisiaszek
Member
I'm sure there is a simple design for a jig to cut off the corners of a blank on a band saw. If you use one and like it, would you save me from reinventing one?
corners jig?
- Thread starter PMisiaszek
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Monty
Group Buy Coordinator
Why waste time cutting the corners off? That's what the lathe is for. If it's just to cut down on the possibilities of chipping or a catch when starting, I just use a belt sander to take the edges off.
PaulDoug
Member
snyiper
Member
I was goint to suggest a simple V block to shave the corners with..Paul beat me to the punch!!
ribanett
Member
What Monty said is a lot faster. I have one of those jigs somewhere, wasted the money on it a couple of years ago.
Sberger
Member
Why? If you cut the corners off, then you will make it much tougher to find the center for drilling. One miscut corner and your perception is off. You buzz them off with the rest of the blank on the lathe anyway. Sounds like a government project idea.
PaulDoug
Member
Well, not here to argue with you, but I think I would mark the center of the blank before cutting... but I agree this kind of jig isn't necessary. I can't remember why I made it to begin with. For some reason it seemed necessary at the time.
PMisiaszek
Member
What prompted the question about a corner-trimming jig is that I've ordered some Tru-stone blanks. and the instructions suggest trimming the corners to reduce the risk of chipping and/or cracking. Trimming corners is not something I'd typically do with a wood blank.
surveyzo
Member
When I turn acrylics and tru-stones I knock the edges off on the belt sander. It doesn't have to be perfect.
Alonzo
Alonzo
PMisiaszek
Member
I thought about using the sander to knock off Tru-stone and acrylic corners but was a bit concerned that the heat generated might react with the blank.
http://www.smileycentral.com/?partner=ZSzeb001_ZSYYYYYY19US
Just to be different I'll jump in. I use a SHARP skew and LIGHT cuts, rarely do I have any issues (note I said RARELY not NEVER).
nava1uni
Member
I use a parting tool to round blanks and don't have chip out anymore. Learned this little trick at a chapter meeting and it works great.
glycerine
Member
If you have a disc sander, you can just drill the holes, glue in the tubes and then take off the edges on the sander. That's what I do...
ThomJ
Member
I drill & glue the tubes in,then knock the corners off with the belt sander
Parson
Member
Heat buildup is indeed an issue with trustone... so hit it just a tad on one corner, rotate it, hit it, rotate it, hit it, and so forth until each one is ground down a bit. This way you won't stay on one corner too long and get it too hot.
But I gotta tell you that I grind the crap out of my corners and yeah, it gets hottern' hades but I just keep going. It's never been an issue... no color changes, no tubes coming loose, nothing. Well, I did almost burn my fingers once, but I learned from that lesson
But I gotta tell you that I grind the crap out of my corners and yeah, it gets hottern' hades but I just keep going. It's never been an issue... no color changes, no tubes coming loose, nothing. Well, I did almost burn my fingers once, but I learned from that lesson
