Get a long piece of paper at least 1 foot wide. Wrap this around the sonotube until the edges are aligned exactly and ther are no wrinkles. Take a pencil and scribe along the paper. Cut by wahtever means and follow the line.
🙂
🙂
A piece of masking tape works wonders as a guide. A steady hand and a box cutter should do the trick. You could always cut it a little long and file or even sand it down, too. I just got a dremel I'm going to try next but again, steady hand. Also, a few of my saws come with edge guides one could place on the other side.
go with poobahs advice - masking tape is not easy for a nice straight egde.
I would cut using a fairly fine tooth sandvik saw, about 16" minimum.
Boxcutters on sonotube...naahhh, broken blades, cut fingers come to mind.
Also - I cut a lot of ABS by hand - cut to below the thickness of the material, then turn the tube, and cut following the previous cut channel and the pencil mark, continue that way. It is easier to follw the line thean trying to cut through the whole tube from the start position.
I would cut using a fairly fine tooth sandvik saw, about 16" minimum.
Boxcutters on sonotube...naahhh, broken blades, cut fingers come to mind.
Also - I cut a lot of ABS by hand - cut to below the thickness of the material, then turn the tube, and cut following the previous cut channel and the pencil mark, continue that way. It is easier to follw the line thean trying to cut through the whole tube from the start position.
it needs to be cut down from 12' to 36"
i have plenty of saws. just want to know how to do it.
thank you
i have plenty of saws. just want to know how to do it.
thank you
audio-kraut said:
They don't call me Ghetto for nuthin'!
seriously, I actually used duct tape but it can pull off the outer layer upon removal. it seemed like the box cutter really "used" the guide if I went slow. Definitely ate the blade though.
Masking tape or duck tape won't establish a line that is truely perpendicular to the tube. The long piece of paper will... if you don't have paper, a piece of kitchen foil will work too.
Following the line with a saw is problem #2. Getting a good line to follow is problem #1.
😉
Following the line with a saw is problem #2. Getting a good line to follow is problem #1.
😉
oh, I like the kitchen foil idea! much easier to work with than paper IMO.
I should qualify the above statements -- tape worked fine for cutting 1"~2" from the edge. In the middle, no
I should qualify the above statements -- tape worked fine for cutting 1"~2" from the edge. In the middle, no
The way I do it is to clamp a piece of wood to the table saw fence that's at least as tall as the tube's diameter.
Also clamp a piece of wood to the miter gage that's at least half the diameter of the tube.
Push the tube into the blade to start the cut, then rotate it around to complete.
Also clamp a piece of wood to the miter gage that's at least half the diameter of the tube.
Push the tube into the blade to start the cut, then rotate it around to complete.
Be sure to use 'Reynolds' brand. If you use the generics you will end up with a gritty, harsh high end in your subwoofer.
The paper idea always worked good for me.
The easy way to draw a line on any size tubing is to use something that slips over the tube and trace around. Of course you wont be able to find any fittings so cut 6-12in off one end (slit it full length) and use the uncut end of this piece as a "straight edge", tape it on and draw the line. Then measure the thickness of the blade and the distance from blade to edge of jigsaw base(if your using a jigsaw) place the good edge of the sonotube this combined distance from the cut line and you have the worlds first circular fence.
The gap in the circular fence should be PI times the thickness of the tube.
Drill matching rows of holes along the 2 sides of the slit.
Use a bootlace to tighten the fence in place.
Drill matching rows of holes along the 2 sides of the slit.
Use a bootlace to tighten the fence in place.
- Status
- Not open for further replies.