Cheap way to cut carbons?
#12
Join Date: Feb 2003
Location: Grand Forks ND
Posts: 258
RE: Cheap way to cut carbons?
Ok, so not aluminum. <img src=icon_smile_wink.gif border=0 align=middle> Can't wait to try the jig, Harry. I guess I'm the reason there is three and not four. <img src=icon_smile_big.gif border=0 align=middle>
#13
Join Date: Feb 2003
Location: Woodstock GA. USA
Posts: 9
RE: Cheap way to cut carbons?
Just some general info - it's not the cut that determines if your insert seats true. The mating of the shaft of the insert to the arrow shaft is what determines the orientation of the point. You could cut at a 45 degree angle and still have a in line point. However, a true cut means that the lip of the insert has full support from the wall of the shaft and makes it stronger both along the shaft and for any cross ways forces. AFTER you cut you want to make sure you "deburr" the inside of the shaft. They sell a special deburring tool, but you can use a standard drill bit. Use one that is bigger than the outside dia of the shaft. DO NOT use any kind of power drill/tool, it will remove too much material and weaken the shaft/insert connection. After you beburr and before you glue. Put in an insert with a point installed and spin check. Inspect the mating of the insert lip to the shaft for any gaps or high points. If need be you can use a emory board or a fine tooth cross cut file to even up the edge, then deburr again and recheck before gluing. Oh I almost forgot. Before cutting your first arrow with a new wheel. Cut a wire coat hanger a couple of times to dress the wheel. It will make for a smother cut. (My wife says I'm not really anal retentive, I just act that way). Hopefully this is of some help to someone.
#14
Join Date: Feb 2003
Location: coal center pa USA
Posts: 27
RE: Cheap way to cut carbons?
I made an arrow saw that is as good as any that you can buy for about $30 TOTAL.
It takes some rigging but here it goes.
I bought one of those cheap 4" 90 degree high speed grinder that you can buy at any flea market for about $15. I removed the handle that is threaded into the frame with a 1/4 bolt. The grinder will now have 2 1/4 threaded holes opposite each other on the frame. I bent a piece on 1/4" by 1 1/2" stock in a u shape, drilled holes in each end and bolted them to the grinder, making a solid mount. I mounted the grinder to the end of a 36" piece of 2x6 so that the blade is 90 degrees to the length of the board. next I took a piece of 2" angle iron about 2 ft in length and mounted it parrallel to the board with the up right in the back and even with the center of the cutting wheel. I made the arrow holding bracket by benting a thin piece of flat 1" stock so that it had a flat side about 3" long then a 90 degree bend with a 2" upright follwed by a slightly greater than 90 bend back at you and then an upward lip to hold the arrow. This looks like a u with a lip on one side. The side with the lip got slotted to fit inbetween the blade. I cut 2 slotted holes on the bottom side and mounted it with bolts coming up through the 2x6 with wing nuts on the top, so that could adjust the holder in as the blade wears out. The other end of the jig that hold the nock end of the arrow was made by taking a piece of meatl, I used alum, about 2"x1"x" ,machining a slot in one end to ride on the angle iron. I drilled and tapped the back to accept a bolt to lock it on the jig. The front right side has an indentation in it to hold the nock made by usind a 5/16 drill bit and making about a 1/4' hole. I mounted a piece of tappe measurer on the jig, offset the depth of the hole to give an accurate measurment on the front side of the sliding block.
It sounds like a lot, but all I did is copied a comercial jig, and replaced that $100 cut off motor with an inexpensive grinder. I use 3" fiberglass waferboard blades.
It takes some rigging but here it goes.
I bought one of those cheap 4" 90 degree high speed grinder that you can buy at any flea market for about $15. I removed the handle that is threaded into the frame with a 1/4 bolt. The grinder will now have 2 1/4 threaded holes opposite each other on the frame. I bent a piece on 1/4" by 1 1/2" stock in a u shape, drilled holes in each end and bolted them to the grinder, making a solid mount. I mounted the grinder to the end of a 36" piece of 2x6 so that the blade is 90 degrees to the length of the board. next I took a piece of 2" angle iron about 2 ft in length and mounted it parrallel to the board with the up right in the back and even with the center of the cutting wheel. I made the arrow holding bracket by benting a thin piece of flat 1" stock so that it had a flat side about 3" long then a 90 degree bend with a 2" upright follwed by a slightly greater than 90 bend back at you and then an upward lip to hold the arrow. This looks like a u with a lip on one side. The side with the lip got slotted to fit inbetween the blade. I cut 2 slotted holes on the bottom side and mounted it with bolts coming up through the 2x6 with wing nuts on the top, so that could adjust the holder in as the blade wears out. The other end of the jig that hold the nock end of the arrow was made by taking a piece of meatl, I used alum, about 2"x1"x" ,machining a slot in one end to ride on the angle iron. I drilled and tapped the back to accept a bolt to lock it on the jig. The front right side has an indentation in it to hold the nock made by usind a 5/16 drill bit and making about a 1/4' hole. I mounted a piece of tappe measurer on the jig, offset the depth of the hole to give an accurate measurment on the front side of the sliding block.
It sounds like a lot, but all I did is copied a comercial jig, and replaced that $100 cut off motor with an inexpensive grinder. I use 3" fiberglass waferboard blades.
#17
Join Date: Feb 2003
Location: coal center pa USA
Posts: 27
RE: Cheap way to cut carbons?
Brian
I don't have a digital camera, but it looks just like the apple arrow saw but instead of the motor they have, it has a 4" grinder mounted so that the body is running back away from the frame to get the blade angle correct.
I don't have a digital camera, but it looks just like the apple arrow saw but instead of the motor they have, it has a 4" grinder mounted so that the body is running back away from the frame to get the blade angle correct.