Now that a rather significant number of speed baggers have my Arc swivel installed, I think it is a good idea to open a thread here for tech support issues or questions.
I will start by discussing a problem existing in a (very) few of the latest units I shipped, a couple of Arc Gammas that went to new forum member Mydogsparty.
I recently made a batch of nylon tri-hooks for the Arc swivel, and that batch had a few defective units that I should have noticed and rejected, but I missed them. Fire my quality control department! Oh, wait, since this is only my hobby, I don't have a quality control department. Oh well...
I thank Mydogsparty for promptly letting me know there was a problem, and I was very happy to be able to identify and fix it. At first, I thought the defective tri-hooks may have gone out to more people, but it seems that he was the only person to get bad ones. If I am wrong, please contact me.
The specific problem with those tri-hooks is a thing in the 3D printing world called under-extrusion. I believe there was a partial jam of material that caused a few tri-hooks to be less than 100% filled and fused nylon polymer. They looked ok but did not perform. They were weak, and deformed and failed with normal stresses of holding the speed bag.
Who can guess which tri-hook is the good one and which one is the bad one?
A correctly made Arc tri-hook can withstand over 400 lbs. of static tension and is even stronger than a stock Everlast S-hook! Not theory, I tested.
I will start by discussing a problem existing in a (very) few of the latest units I shipped, a couple of Arc Gammas that went to new forum member Mydogsparty.
I recently made a batch of nylon tri-hooks for the Arc swivel, and that batch had a few defective units that I should have noticed and rejected, but I missed them. Fire my quality control department! Oh, wait, since this is only my hobby, I don't have a quality control department. Oh well...
I thank Mydogsparty for promptly letting me know there was a problem, and I was very happy to be able to identify and fix it. At first, I thought the defective tri-hooks may have gone out to more people, but it seems that he was the only person to get bad ones. If I am wrong, please contact me.
The specific problem with those tri-hooks is a thing in the 3D printing world called under-extrusion. I believe there was a partial jam of material that caused a few tri-hooks to be less than 100% filled and fused nylon polymer. They looked ok but did not perform. They were weak, and deformed and failed with normal stresses of holding the speed bag.
Who can guess which tri-hook is the good one and which one is the bad one?
A correctly made Arc tri-hook can withstand over 400 lbs. of static tension and is even stronger than a stock Everlast S-hook! Not theory, I tested.
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