Bill Piche Posted December 13, 2003 Share Posted December 13, 2003 http://www.cyberpump.com/gallery/album129 David Horne sent these in. Quote Link to comment Share on other sites More sharing options...
Sean Dockery Posted December 13, 2003 Share Posted December 13, 2003 Nice piece, an elegantly simple solution! Quote Link to comment Share on other sites More sharing options...
Rick Browne Posted December 14, 2003 Share Posted December 14, 2003 Very nice David, I assume those are steel plates? I have a few aluminum discs measured at 3/8 and 1/2 inch thick.. 11 inches in diameter. I use them between 2 25lb plates. They weigh roughly about a lb+ for the 3/8s and about 1.5lb or so for the 1/2s They are ideal in that the aluminum provides thickness without added heavy weight. I cut a 2 inch hole in the aluminum plates for the aluminum 2 inch round stock for additional add on weight plates Quote Link to comment Share on other sites More sharing options...
OldGuy Posted December 14, 2003 Share Posted December 14, 2003 That 'll work. Does that equipment have character or what! Quote Link to comment Share on other sites More sharing options...
David Horne Posted December 14, 2003 Share Posted December 14, 2003 The diameter of the discs is 400mm. Outer plates are steel. The inside discs are hard rubber, that have a slot for easy loading. The rubber was chosen so it would be lighter to post. But still the apparatus unloaded was 23k. The width can alter from 12mm upwards. Pictured is 52mm. John, glad you like it. It took a few ideas for us to eventually come back to original 'pinch disc' shape. Nothing beats it! David Quote Link to comment Share on other sites More sharing options...
Rick Browne Posted December 14, 2003 Share Posted December 14, 2003 Outer plates are steel. The inside discs are hard rubber, that have a slot for easy loading. The rubber was chosen so it would be lighter to post. But still the apparatus unloaded was 23k. The slot is ingenious! slide on then pull off without outside plate removal. Did you choose the rubber material specifically for the ease of the slot cutting? Quote Link to comment Share on other sites More sharing options...
climber511 Posted December 14, 2003 Share Posted December 14, 2003 Does anyone have a do it yourself at home easy way of cutting circles from flat stock steel? Quote Link to comment Share on other sites More sharing options...
Sybersnott Posted December 14, 2003 Share Posted December 14, 2003 Man, don't you love those old and ugly plates! I have a bunch of them myself... the way I see it, "iron is iron" no matter how rusty they get! David, again... you can send me some evaluation pieces if you wish. Just email me for my address, thanks!! Quote Link to comment Share on other sites More sharing options...
David Horne Posted December 14, 2003 Share Posted December 14, 2003 Rick, The slot was introduced for ease of loading/thickening. The hard rubber was used for cost cutting regarding postage. Climber, All this apparatus is made by a proper company, so obviously they have all the proper machines. David Quote Link to comment Share on other sites More sharing options...
The Mac Posted December 14, 2003 Share Posted December 14, 2003 David, Very nice work and a very good (and much needed) idea. Quote Link to comment Share on other sites More sharing options...
Mikael Siversson Posted December 14, 2003 Share Posted December 14, 2003 Yes, we are finally in a position where we can compete on equal terms in pinching. Everyone has their own power curve in pinching where they can lift the heaviest weight at a certain width. Going up or down from this width means less weight lifted. Now it just a matter of getting a set from David and find out where your maximum strength is. A quick way of getting a very rough idea is to pinch a bathroom scale adding books or something for extra width. Quote Link to comment Share on other sites More sharing options...
Bill Piche Posted December 14, 2003 Author Share Posted December 14, 2003 I want one! Quote Link to comment Share on other sites More sharing options...
The Mac Posted December 15, 2003 Share Posted December 15, 2003 Whoa Mikael, you're back!! Quote Link to comment Share on other sites More sharing options...
Allman Posted December 16, 2003 Share Posted December 16, 2003 I was wondering what the design for this adjustable apparatus was going to be like. To be sure it follows the minimalist tradition in some home gyms. I dislike the idea that adding discs, even hard rubber ones, will add a bit of weight to the assembly and will make comparing lifts a bit more confusing. It would have been preferred if the assembly remained the same weight. There does not seem to be any easy way to adjust the width to the mm. If someone wanted 69 mm I doubt you could select that unless the discs were made beforehand to achieve this. There is an "improvement" that can be done to the existing apparatus. It will take special welding to achieve. The collars should be welded to the outside steel discs so that these discs are kept vertical. If you look at the first photo you will see that the assembly is leaning to one side. That will happen when the holes are a bit on the large size which is needed to easily take discs off and on. As long as there are no sharp edge on the outside rims the apparatus works and is an improvement on the fixed width. I guess because of expense considerations we won't be seeing stainless steel rims for some time. Unless some maverick in a far away place decides to machine one up! Let's face it, guys, most of you never design things for commercial gyms. Stainless is the preferred surface for anything that gets touched a lot. However, we need not go into what has now become a rather taboo subject. Quote Link to comment Share on other sites More sharing options...
gazza Posted December 16, 2003 Share Posted December 16, 2003 I think its an excellent design,david and Mikael should be congradulated for there thinking design and hard work,its a very possitive step in the right direction. Stainless steel plates and the like belong in the gyms were the pussies hang out and no chalk is aloud. You cant please all the people all the time ,and yes it would be nice to have infinate adjustability,but that would make it too expensive for most people. David is making something available at a reasonable price that most of us can afford and can then compare results with other people across the world. Lets help him and mikael out not knock him for his efforts. Quote Link to comment Share on other sites More sharing options...
the swiss Posted December 16, 2003 Share Posted December 16, 2003 very cool implement. As usual Vince you are very critical about using chalk and not using a machine. but it seems to me that everyone but ONE person likes the device, so the goal is reached!! congrats david. thanks for posting those pics!! david Quote Link to comment Share on other sites More sharing options...
David Horne Posted December 16, 2003 Share Posted December 16, 2003 Here's the thoughts that went into making this. 1. We tried a few other ideas and stainless wasn't any of them!. We thought about an adjustable one via a large threaded bar, but when I asked the company they said with all the dropping of the weight in training/competition it wouldn't last 2 seconds. 2. But the outside discs had to be the same ones as there may be a difference if I had a few different width discs on offer, ie. one might be more chalky or whatever. 3. After getting another device made up, I realised that I wanted a pinch to look like a pinch hence round plate style discs. 4. It's 40cm high so this will not be a problem as far as depth goes. 5. For the filler discs I thought of steel plates, but this would increase the price dramatically, and make postage out of this world. Wood was thought of next, but small warping may occur and it isn't as resiliant as the hard rubber which we ended up choosing. 6. For ease of loading (I was thinking of our poor loader Magnus who does it every year), we got the slots cut into the rubber, so that it can be made thinner or wider by just loosening the collars and slotting them in from the top. 7. As Vince said the discs were loose on one of the photos. Well this was due to us not tightening them for the last few lifts as we were just messing around and then I said "take a photo of the weighted pinch". No biggee, it is as tight as you want when you fasten it. Hope this hasn't bored everyone too much, David Quote Link to comment Share on other sites More sharing options...
Rick Browne Posted December 16, 2003 Share Posted December 16, 2003 Hope this hasn't bored everyone too much, No way!! Without sounding to Rah- Rah!, I am stoked about the slotted add on plates for width adjustment !! You have a winner Dave! Quote Link to comment Share on other sites More sharing options...
Bill Piche Posted December 16, 2003 Author Share Posted December 16, 2003 David, when are you gonna sell these puppies if at all? Quote Link to comment Share on other sites More sharing options...
Allman Posted December 16, 2003 Share Posted December 16, 2003 (edited) I guess most of you people haven't made any gym equipment. I have my own engineering factory with big lathes, milling machines, automatic bandsaw, radial drills and so on. So I feel my comments are worth something and are not knocking anyone or anything. You start out with an idea and then try to come up with a solution that is satisfactory. Sometimes there are several engineering solutions. When that happens considerations such as expense and weight become important. It all depends on what you want. The idea that you will be using the same device in competitions as you are training on is fine. That doesn't mean it is the best solution. Why limit ourselves to things that are cheap? If someone is planning on making items for sale then I fully understand that it has to be affordable. I still think welding the collars is preferable. The steel discs will tend to get larger holes in them after a while. There is nothing sissy about using gym equipment with stainless steel handles. Nor does one achieve manhood by using magnesium chalk! Edited December 16, 2003 by Allman Quote Link to comment Share on other sites More sharing options...
gazza Posted December 16, 2003 Share Posted December 16, 2003 Sorry Vince but the stainless steel issue just wont wash LOL anymore,its been beaten to death on Nicks site. Chrome and Fern,washing hands every 2 minutes,no chalk,no thanks,i want to lift like the oldtimers,raw,rough and brutal,not like a puff. Quote Link to comment Share on other sites More sharing options...
David Horne Posted December 16, 2003 Share Posted December 16, 2003 Thanks all. I will try to get the costs, including postage together. Probably in the new year. David Quote Link to comment Share on other sites More sharing options...
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