You never cease to amaze!
Why is that so beautiful! I hope Gerber people are taking notes.
Will be interested to see how these pliers hold up to heavy use. Seems like this will be a very weak design but I could be wrong.
Quote from: NetsNJ on September 09, 2018, 06:36:32 PMWill be interested to see how these pliers hold up to heavy use. Seems like this will be a very weak design but I could be wrong.I must admit, that was my concern too. I like the idea of one arm extending, but it seems that a lot of rigidity and strength has been sacrificed to achieve it. Interesting concept though
Point taken on the rivet diameter. However, they are further forward from the effective fulcrum point of each handle section (bottom edge of plier trunnion) than the uppermost retaining screws are, thus subjecting them to less force. The counter point to my own arguement being that the pivot is in shear force, and the uppermost retaining screw is in tension - and identical pins are only 0.75x as strong in shear as they are in tension... but the difference in distance from effective fulcrum is enough to counter this.It will be interesting to see not just how that screw fares under tension (which it ordinarily wouldn't be), but also how the guide channels themselves fare. As designed, there would be full face contact between the guide channels and plier trunnions, with the force all acting in one direction. With this modification, there's opposing forces, with partial contact between channel and trunnion at the bottom, and the sole point of contact at the top, is the underside of that little dome head screw. A lot of force focussed in a small area. I don't want you to think I'm being intentionally derogatory about your work Sam, merely sceptical, and I don't want folks rushing into copying you, and ending up with grossly compromised tools I look forward to the testing, and what effects may occur. I'm expecting that if the screw doesn't go ping under tension, that the channel may deform, and depending on the force used, the screw might even pull through the slot. I look forward to the update
remember the failure of my PaulChen Multitasker that uses the same system... Show contentthose are tricky pesky sliders
For what it is worth, but knowing I'm not an engineer and this is my observation/experience, the Pinchy plier screws are absurdly strong. From my experience, everything Gerber utilized on the Pinchy was well underrated. I would guess the screws are of high grade with good tensil strength, compared to other typical steel screws.But, if the screws do break, suitable screws can be sourced. Without checking (and please correct me if this is wrong), they look like 10-24 threads.
For what it is worth, but knowing I'm not an engineer and this is my observation/experience, the Pinchy plier screws are absurdly strong. From my experience, everything Gerber utilized on the Pinchy was well underrated. I would guess the screws are of high grade with good tensil strength, compared to other typical steel screws.But, if the screws do break, suitable screws can be sourced. Without checking (and please correct me if this is wrong), they look like 10-24 threads.Edit: checked with my die sets and the Pinchy screws on my V.3 appear to be M5 0.9. Anyone else find theirs to be different?Photo shows that this was the only die the screw fit into on the tight end of the die with no play, and threaded all the way
50ft,In your experience, would a 0.9 pitch M5 be close enough to the standard coarse 0.8 pitch M5 work on the Pinchy(since the length isn't a big issue with them)? Without tapping the threads of course.