Impex
1/2 ton status
1.5 hole saw cutting 1.5 tubing, the hole cuts off more to one side than the other...am i doing something wrong?
dosen't cut enough
cuts to far
dosen't cut enough
cuts to far
CK5
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help with HF notcher
- Thread starter Impex
- Start date
85mudblazin
1/2 ton status
does your hole saw fit snug into the guid to the tube? is so then maybe the centering is off a little or loose.
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big83chevy4x4
3/4 ton status
mine does the same thing, im also cutting 1.5" with 1.5". im saving to by a protools notcher /forums/images/graemlins/waytogo.gif
DPI
1/2 ton status
The hole saw is not centered on the tube. The saw is too close to the notcher, you can use some washers to move it out until it is centered with the hold down strap/tube. Put the washers between the backing plate and the clamp assembly that holds the tube. There are two bolts that hold the clamp assembly to the backing plate. However, you might need more than two washers to move it out far enough to center it.
This is how I fixed mine...
This is how I fixed mine...
Yes, HF or other similar notchers (even the more expensive ones) often need a bit of shimming to make them work right. Problem is, any little bit off, even due to "stack" tolerances that are individually within spec, multiplied over the length of the bar, can get it off by 1/8" or more easily. Mine is pretty close but not perfect.
Here is another bit of advice. Cut it first. Figure out where the base of the fish-mouth will be, and add about 1/3 the width of the tube you will be joining. This way the saw only makes half the cut, and you don't wind up with razor edge ears that have to be ground down anyway. Saves the saw which lasts twice as long, and even if it's off a little bit, it doesn't really matter.
Here is another bit of advice. Cut it first. Figure out where the base of the fish-mouth will be, and add about 1/3 the width of the tube you will be joining. This way the saw only makes half the cut, and you don't wind up with razor edge ears that have to be ground down anyway. Saves the saw which lasts twice as long, and even if it's off a little bit, it doesn't really matter.
FWP
CRS
Your doing ok, that thing is a POS, but it works. I just use the grinder to clean it up a bit when I'm done cutting...
Russ has it right.....you can't "holesaw" through the middle of a tube!!! /forums/images/graemlins/yikes.gif
It's an end-notcher...if you're trying to notch 2" tube the cutting blade should only have about 3/4" over the tube, and the rest of the blade should be hanging over the edge of the work.
It's amazing that you were able to cut as deep as you did, with that much drag the blade should have been binding up and chattering like crazy!!!!!
/forums/images/graemlins/thinking.gif
It's an end-notcher...if you're trying to notch 2" tube the cutting blade should only have about 3/4" over the tube, and the rest of the blade should be hanging over the edge of the work.
It's amazing that you were able to cut as deep as you did, with that much drag the blade should have been binding up and chattering like crazy!!!!!
/forums/images/graemlins/thinking.gif
What about using a 1 7/16" hole saw? /forums/images/graemlins/thinking.gif
[ QUOTE ]
What about using a 1 7/16" hole saw? /forums/images/graemlins/thinking.gif
[/ QUOTE ]
.474375" over the tube.
.963125" hanging over the end.
Smarta$$ /forums/images/graemlins/grin.gif
What about using a 1 7/16" hole saw? /forums/images/graemlins/thinking.gif
[/ QUOTE ]
.474375" over the tube.
.963125" hanging over the end.
Smarta$$ /forums/images/graemlins/grin.gif
so is that good or bad? /forums/images/graemlins/dunno.gif /forums/images/graemlins/confused.gif
Impex
1/2 ton status
i just cut it in the center to show so i could take a pic (if you look close i tried notching the very end and didn't work)
