macaz Posted March 22, 2011 Share Posted March 22, 2011 So I decided to build a grip calibrator. So far I am loosely going of the design from the gripper superstore (the photo on the website). Ill use a strap to pull down on the gripper as in the photo on the Gripper Superstore. I wish I had a picture of what type of weight contraption the strap goes to. Im going in between the idea of a platform or a loading bar. The point of this post is if any one can upload a decent photo of their contraption (top and bottom with a few angles would be nice) I would appreciate it a lot. I am fortunate enough to have access to a very accurate digital scale that is calibrated to ISO standards so that will take care of how much my plates weigh. Thanks! Rich Quote Link to comment Share on other sites More sharing options...
Benedikt Farsmann Posted March 22, 2011 Share Posted March 22, 2011 Take a look at this, maybe it helps: http://www.software-henritzi.net/Articles/MortonGripperCalibrationDevice.pdf Quote Link to comment Share on other sites More sharing options...
Jedd Johnson Posted March 23, 2011 Share Posted March 23, 2011 Would this demonstration help? Quote Link to comment Share on other sites More sharing options...
macaz Posted March 23, 2011 Author Share Posted March 23, 2011 Thanks Jed and Ben for the help. That was a great video. As usual you explained things very well. Now All I have to do is hook up a 220V 50amp plug near my breaker box so I can use the arch welder. I should be rolling by the weekend! I have a 2.5 that is a bear. My guess is its about 138. Ill post my results. Quote Link to comment Share on other sites More sharing options...
McHaggis Posted March 23, 2011 Share Posted March 23, 2011 Just want to share a couple pictures of my device. It might give a few ideas to those looking to make one. I used low grade aluminum for the holding block and thick steel plate as a base. The square tube act like 2 handles My wooden version 1.0 , 1/4" wasnt thick enough. Replaced it with 5/8" plate. I made an alumimum sleeve for testing the 5/8" handles. Quote Link to comment Share on other sites More sharing options...
paulw Posted March 23, 2011 Share Posted March 23, 2011 Would this demonstration help? Thanks for posting the video Jedd, really interesting to someone who's never seen it done before Quote Link to comment Share on other sites More sharing options...
macaz Posted March 23, 2011 Author Share Posted March 23, 2011 Wow McHaggis! That is well made. Quote Link to comment Share on other sites More sharing options...
macaz Posted March 25, 2011 Author Share Posted March 25, 2011 Today I weighed my weight plates on a good scale. All the metal needed was bought over the week. Now all I have to do is install a 50amp 220V circuit breaker and line for an arch welder. I will post results hopefully this weekend if I don’t electrocute myself. Quote Link to comment Share on other sites More sharing options...
macaz Posted March 26, 2011 Author Share Posted March 26, 2011 I finished my gripper calibrator contraption. The results: T1=58Pounds T2=70LB T3=93LB T4=105LB T5=127LB T6=139LB T7=174LB T8=208LB T13=FORGET IT COCS=44LB COC1=84LB COC1.5(SLIGHTLY FILED*)=98LB COC2=116LB COC2.5(MY GOAL GRIPPER)=146LB COC3=156LB RB210=141LB RB240=143LB ATOMGRIPZ III=130LB ATOMGRIPZ VI=280LB MM1=159LB RETRO BEAST SMOOTH STEEL HANDLE=160LB HG350=143LB BBM=110LB BBGM(EXTENDED HANDLE)=155LB BBE(EXTENDED)=171LB BBSE(EXTEND)=206 Thanks guys for the input!! Quote Link to comment Share on other sites More sharing options...
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