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Model Forum / General / Rockets / April 2007Building questions
Hello all, I have asked a few questions over the weeks and thank you all for your time and reply's. Now another. How do you cut your body tubes? Primarily small rocket stuff (rolled paper). I have marked the tube (using a homemade contraption) accurately and then tried cutting to length a few different ways, just cutting with a #11 blade, or using a hacksaw, both freehand and then finishing up with a sandpaper block. Don`t mind that way it`s just time consuming (however the whole built of building right:) and I can get a tight fit between mating parts. I have also used thin CA and sanded, but without CA seems to work better. Just wondering if I am missing something. Also what do you guys use for a list of building tools ( I am thinking more along the lines of homemade jigs and stuff) to make life simpler. For instant, I started using 90* angle lengths to hold body tubes while gluing fins on ( I do need to make a fin jig ) I appreciate any replies. rick > Hello all, I have asked a few questions over the weeks and thank you > all for your time and reply's. Now another. How do you cut your body [quoted text clipped - 4 lines] > block. Don`t mind that way it`s just time consuming (however the whole > built of building right:) and I can get a tight fit between mating Mitre box and x-acto saw. >> Hello all, I have asked a few questions over the weeks and thank you >>all for your time and reply's. Now another. How do you cut your body [quoted text clipped - 6 lines] > > Mitre box and x-acto saw. OK, for small tubes but I screwed to 2 X 6's together to form a 90 degree angle. Took a metal strap and used that to screw a utility knife blade to the end of the wood. I have several levels so I can cut different sized tubes. Perfect cuts every time. The mitre box might work for you but is you get into a larger tube like BT-70 or above a unit like I described might be better. > >> Hello all, I have asked a few questions over the weeks and thank you > >>all for your time and reply's. Now another. How do you cut your body [quoted text clipped - 13 lines] > work for you but is you get into a larger tube like BT-70 or above a > unit like I described might be better. I use a power miter saw. I can cut tubes from 1/4in to 4in without any problem and the ends are 90 degrees every time. Takes about 15 seconds. Anything larger than that and I'll use either a band saw or a table saw. Miter box and a razor saw will work for the non-powered version. -Aaron >>> Hello all, I have asked a few questions over the weeks and thank you >>> all for your time and reply's. Now another. How do you cut your body [quoted text clipped - 13 lines] > work for you but is you get into a larger tube like BT-70 or above a > unit like I described might be better. That's how I've been cutting my tubes for years and it works very well. For larger tubes made of thicker cardboard or phenolic I substitute a razor with a razor saw. Ted Novak TRA#5512 IEAS#75 > OK, for small tubes but I screwed to 2 X 6's together to form a 90 > degree angle. Took a metal strap and used that to screw a utility knife > blade to the end of the wood. I have several levels so I can cut > different sized tubes. Perfect cuts every time. The mitre box might > work for you but is you get into a larger tube like BT-70 or above a > unit like I described might be better. Old timers refer to this as a "Kuhn cutter" after Howard Kuhn's tube cutting jig. For small stuff, a piece of L-shaped 90-degree wood molding works well. Clamp a block of wood to stop the tube for the length you want. Notch the wood to hold a razor blade that sticks out just enough to cut. Set the tube inside the "L" and rotate the tube. Cuts nice and square. I've scaled this up by making the "L" from a couple lengths of 8" wide laminated shelving material. For thicker tubes, especiall kraft-phenolic, a fine hacksaw blade works better than a razor. -John 2 planks of wood, bolted together in a 90 degree angle, lengthwise. A razor blade (flat one, not #11) is attached to one end of this wooden thing, tube is placed on the thing, a block is placed on the other end and clamped to keep the tube stable, turn the tube until it cuts.  SignatureTAI FU > Hello all, I have asked a few questions over the weeks and thank you > all for your time and reply's. Now another. How do you cut your body [quoted text clipped - 12 lines] > replies. > rick |
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