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If you are just after a co-ordinate system for a cad/cam file for say, SolidCan Or EdgeCam, then wherever you want to place the co-ord sys,create a plane, then a sketch on the plane with a line perpendicular(Z)to the centre of your proposed co-ord sys and a line horizontal(Y), close sketch but...

Sorry No sketch attached http://i412.photobucket.com/albums/pp206/techman-engineering/APIPinBox.jpg

Can anyone explain the benefit of cold rolling of API connections? The method of cold rolling is, I beleive, to form a compressive layer to the root of the thread using a roller, this roller only touches the root of the thread, not the flanks. Why does the root get treated? when only the...

I would like to thank all contributors to this thread, for their assistance, I hpoe I didn't get anyone too confused, as unclesyd says torque multipliers are readily available, the one we have is quite an impressive piece of kit.

re: handleman, My field is CAD/CAM, I was asked to produce drawings and CNC programs for the parts, for a machine to torque up one componemt on to another, I was also asked if I coiuld find out what torque would need to be applied to the torque wrench, hence the question, I joined this forum...

I thought that length from the central axis of the drive shaft, to the 1st driving point, must have some bearing on the output? My calculation, as per comment by hydtool, was based on 12000ft/Lb x 12(into inches) = 144000in/Lb divided by 125(torque multiplier) = 1152 divide by 5 (length from...

Hello handleman, No, the torque multiplier is an enclosed arrangemant of gears that multiplies the input 125 times, a standard torque wrench fits into one side and a sprocket fits into the drive shaft @ the square cut-out in sketch. I thought that the radius of the 1st gear on the drive...

I am having a problem with clarifying the following question. I need to know what torque to apply at the shaft to acheive the required torque at the faces indicated, see attached sketch. The torque multiplier is an enclosed arrangement of gears, with an input socket (to take a torque wrench)...