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  #1  
Old 02-04-2014, 07:18 PM
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Chocflip201 Chocflip201 is offline
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Bendtech Pickpoint measuring techniques

What fancy tools have you guys came up with to measure pick points when designing an assembly or tube in Bendtech?

Pickpoints are often invisible and imaginary coordinates, so what do you guys use to help you get accurate coordinate readings?

Sometimes I will use two plumb-bobs and tape them where I want tube and dangle them down to the ground and measure between them to get a good width reading. What else do you guys use other than "tape measure and eyeballin' it"
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Old 02-04-2014, 07:28 PM
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I guess any tubing bending techniques would fly. Don't need to be just for Bendtech.
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Old 02-05-2014, 07:28 PM
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AngryBee AngryBee is offline
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I use all of what you said, plumb bob, tape measure and steel ruler. Most times I try to use a triangulation (pyramid even?) technique to get the point as accurate as possible.

Tone
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Old 02-05-2014, 07:58 PM
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Are you talking Pythagorean Theorom or something else?
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Old 02-06-2014, 08:32 AM
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No idea (math wasn't my strongest subject at school). I like to measure from two or three separate known points to the single point I want to place. I use dowel as well to simulate tube and get someone else to hold it in position. Low tech but gets the job done.
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Old 02-06-2014, 12:01 PM
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Gotcha. Pythagorean Theorom is A-squared+B-squared=C-squared.

So you take two known lengths of a triangle to find the third length.
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Old 02-06-2014, 12:41 PM
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I've found that when I'm using 2" tube a tennis ball can be held directly on the pick point you then can measure to the center of the ball by eyeball with a YoYoStick (tape measure) then it is a simple matter to adjust the radius of the ball to set the pick point where you want it for clearance or interference. The ball can be Taped to the location with Masking Tape and you can use 2 or more balls to get your spatial view and I have gone so far as to run the Masking Tape between the balls to give me a visual of the tube.

E
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Old 02-06-2014, 04:07 PM
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I get what you're sayin Entropy. Luckily I have tons of tennis balls around the house from my dog :)

That would work will in a rollcage design project.
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