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I received a question about using larger mounting screws that my stock #10 screws, so I wanted to test the modification first and share the results with the group.
The question was would it damage the Arc swivel if you drill the holes wider to accept 1/4" lag screws. The answer is no, there will be no damage, and the strength of the swivel base is not compromised by the modification.
It is very easy to do. I used a simple hand drill and a 1/4" twist drill bit to ream the holes wider. You should, however, use 1/4" washers between the lag screws and the plastic. Make sure the holes are wide enough so the screws can be fit through by hand easily like this:
Then just mount the swivel, done.
Just for fun, I wanted to share some pics of my static load testing on this mod.
In the last pic, you see the result of a 340 lb static load. The swivel held fine, but the Everlast s-hook began to bend. This Arc Gamma is a real hulk!
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Have you been getting buys from non forum members? I am gonna get another one. I want plenty of backup swivels. Ever since I read how a members Deville swivel finally broke by the ball popping out I want to make sure that I have plenty of backups. My Deville has some serious wear on it, and I have no idea how long its gonna last.
This is a great time for swivels with 2 members right now making awesome ball hooks.
Yes, I have been getting buys from non forum members. I am trying my best to steer them to the forum for more information about the Arc before buying it. Ball hooks are not for everyone (hard to believe, I know)
I can set one aside for you until you order. What color where you thinking?
I finally installed and used your swivel. I just don't like taking out and reinstalling the screws since each time the hole weakens.
Great swivel! On my setup it is a tad faster than the Deville. So far every bag I have tried fit on the tri-hook. My Ali Authentic leather though just barely will fit with its very short loop. It responds to my bags pretty much the same way as the Deville. The bags that on the Deville hit irregular do the same on the Arc. On some of my faster, bouncier bags, the added speed threw me off at first until I regained control by hitting softer. Well since I do not like to remove swivels, this is gonna be my swivel for a while until I get off my butt and modify my platform by drilling all the way through the board and installing bolts.
I will have to drill out one of the holes a bit larger as the bolt holes line up perfectly with the Deville except one that is a mm or so off.
I hit for around two hours on it today, trying out different bags and I am really happy with it. If I ever get off my butt and sell my townhouse so I can get a house I can finally setup my ultimate speed bag room. My dream setup is to have 3 platforms, 1 ball hook, one chain link, and one U-bolt and then a vertical board too. I do miss using a U-bolt and just doing a boxing triplet, as I found for myself that I am faster in that style with a U-bolt or chain link.
Thanks again!
For those wondering what bags fit here is what I tired.
Title Ali Authentic Leather
Everlast 4204
Leone
Title Gyro
Cleto Reyes
Paffen Sport
Everlast Elite Roo
Bags with long loops fit easily, those with shorter loops will with a bit of finesse and turning the bag sideways.
I will post if I find a bag that does not fit, but the Ali Authentic leather is a real pain to get on and off.
One more thing, the Deville is showing a lot of wear on the outside, but inside the lip that holds the ball in is in great shape! So the wear on the outside is not yet affecting the inner lip and she has plenty of life left in her.
Last edited by jaja6009; 09-16-2018, 06:22 PM.
Reason: Added
...The bags that on the Deville hit irregular do the same on the Arc...
I can't speak of the Deville because I don't have one. But my experience has been that many factors add up to produce an irregular rebound from a bag. A worn or poorly designed swivel can do it, an out of balance bag can do it, etc.
With the precision movement and wide arc of the Arc swivel, it is more likely an out of balance bag will become apparent. One quick thing to try is reverse the direction of the bag as you put the loop into the tri-hook. I find this improves some bags.
I can't speak of the Deville because I don't have one. But my experience has been that many factors add up to produce an irregular rebound from a bag. A worn or poorly designed swivel can do it, an out of balance bag can do it, etc.
With the precision movement and wide arc of the Arc swivel, it is more likely an out of balance bag will become apparent. One quick thing to try is reverse the direction of the bag as you put the loop into the tri-hook. I find this improves some bags.
I'd vote for an irregular, mishaped or out of balance bag. If a swivel hits perfect on a few bags why would its function change with any "other" bag. IMO, it has to be an issue with the bag that is actually warping the rebound. For a test, take that same bag on hit on a bunch of other swivels and see if you get the same issues.
Yeah I wasn't blaming the swivel, it just made it apparent that the bag is the culprit when it does the exact same thing on both swivels. I just got a Title Perilous 5x8 and it is the most jumpy, irregular bouncing bag I have ever hit on. The 6x9 was similar but no where near as bad, but a bladder change fixed it. The Perilous bags do not have the circular glue down inside and are glued to the inner bag in a random sloppy way.
Getting ready to hit on some new bags on your swivel. I'm trying to find it's bag mate. For the Deville, I loved to hit on the Title Ali Authentic Leather 5x8 or 6x9. Looking for the Arcs new soulmate.
The Title Platinum Perilous has a very narrow loop. Somebody brought one to SB9 and people were commenting about how narrow it was.
Does the narrow loop slide down to one corner of the tri-hook? That may cause it to bounce funny.
Personally, I did not notice that on the Platinum Perilous. I didn't particular care for the shape of the bag, but I didn't notice it sliding on the swivel. But then again, I didn't hit it long and Hard. would be great to get G-Town (Louis) and Matt's viewpoint on that. I think they got after it on the ARC.
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