Doc Posted November 28, 2012 Share Posted November 28, 2012 Take a look at the photo. Can you see the disc of white material sandwiched between the metal discs. What material would you say this was? Is it PTFE, Acetal or Delrin? What materials makes the best coefficient of friction? Link to comment Share on other sites More sharing options...
Tweedledee Posted November 28, 2012 Share Posted November 28, 2012 That is a wonderful mount and is apparently the smoothest and doesn't need locks. It seems the manufacturer isn't letting on what the friction discs are made of. I thought Acetal and Delrin were the same or at least that Delrin was a type af acetal. After a bit of googling other suitable options may be high density polyethylene (HDPE ). Apparently, ultra high molecular weight polyethylene (UHMWPE) has the lowest coefficient of friction of just about anything. Just a few ideas. Link to comment Share on other sites More sharing options...
Brantuk Posted November 28, 2012 Share Posted November 28, 2012 Milk bottle mods lol Link to comment Share on other sites More sharing options...
Doc Posted November 28, 2012 Author Share Posted November 28, 2012 Ok Peter if it is uhmwpe then what's better Aluminium against uhmwpe Bronze against uhmwpe Felt against uhmwpe Uhmwpe against uhmwpe Just wondering. Link to comment Share on other sites More sharing options...
Tweedledee Posted November 29, 2012 Share Posted November 29, 2012 I really don't know Mick, but it sounds like you might be planning a mod for a super smooth 300p . Or perhaps an artificial hip joint with titanium against UHMWPE . Link to comment Share on other sites More sharing options...
Doc Posted November 29, 2012 Author Share Posted November 29, 2012 No I'm thinking of building myself a mount for my WO GT81 similar to the DiscMount one. Link to comment Share on other sites More sharing options...
+Graham Posted November 29, 2012 Share Posted November 29, 2012 No I'm thinking of building myself a mount for my WO GT81 similar to the DiscMount one. Mick why are you after a low co-efficiency of friction. The lower you go the more problems you will have maintaining the scope's position. I mean the lowest thing is going to be a bearing. Link to comment Share on other sites More sharing options...
Doc Posted November 29, 2012 Author Share Posted November 29, 2012 You are most proberly right Graham I just thought if you use the material with the less stiction then the movement will be smoother, but then I can see what you mean as well. Link to comment Share on other sites More sharing options...
Tweedledee Posted November 30, 2012 Share Posted November 30, 2012 Sounds like a nice project Mick. I'll be very interested to see how it goes and what materials you use. Link to comment Share on other sites More sharing options...
Doc Posted November 30, 2012 Author Share Posted November 30, 2012 Pete I have loads of ideas just no money or time to do things, it's in the pipe line but don't count your chickens to quick. Link to comment Share on other sites More sharing options...
Tweedledee Posted November 30, 2012 Share Posted November 30, 2012 Probably a tall order to emulate that dm6 mount. But I can see that you want to combine smoothness without the need for locking clutches with good balance. Using ball bearing races would require locking clutches. I'm sure a combination of the right materials and the right amount of tightness of the axes could achieve that. An interesting problem to solve. Link to comment Share on other sites More sharing options...
Tweedledee Posted November 30, 2012 Share Posted November 30, 2012 Pete I have loads of ideas just no money or time to do things, it's in the pipe line but don't count your chickens to quick. Yes, it would be nice to take early retirement with a million in the bank Link to comment Share on other sites More sharing options...
Doc Posted November 30, 2012 Author Share Posted November 30, 2012 It would be lovely to retire with a workshop and lathes, milling machines etc, that would be heaven. I will get their one day you see. Link to comment Share on other sites More sharing options...
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