Odd circle test results (Page 8 of 24)

Yep and it has a setup similar to your SD4 on the carriage.

shame we gotta drag out such a long topic for such trivial SD work , but this is good reference for future mods etc too

Just checked and I can't twist that carriage even a bit and it really is very similar to what you guys have.

the real question is what are they doing over there at sd. building printers or nightmares?

lock collars are still lame for holding the 6 rods in place

On this note I would like to take a moment to calm you guys down.  I know you are frustrated by all of this but don't think for even a second that the more experienced guys with SD2's and 3's didn't have their fair share of frustrations.  All sorts of things didn't work as promised from SD and the Customer Service is actually better now than it was then.  The thing is you are all bright people in your own right.  Many times guys like myself see your problems and actually have the answers.  The hard part for us is we have answered the same questions so many times that we burn out.  I decided to take this one on because you guys were obviously stuck and I assure you we will figure it out.  That being said it takes a lot of patience and hard work on your part.  The joy is in the learning process and the next time a problem arises you will be able to figure it out in minutes versus days.
I used to always end my posts with "We're all here to help".  Although still true today there are fewer and fewer advanced users showing their faces around here.  So I would ask that you all do your best to figure things out on your own until you are totally stumped.  Then you search your asses off until you come to the conclusion that the answer isn't here.  Then ask for help and I ensure you that if it truly is an unusual (as this was) issue, Someone will rise to the surface to help.
So I will end this with my original
"Happy Printing"

Wardjr, do you work at SD? 

You have a good point but don't forget, we started this thread because we were all stumped after doing hours of research coming up empty handed.  That's partly why this thread lasted as long as it has, because people are dedicated, receiving help, and this is the only place help is coming from.  And it's not done yet. 

I would love to pitch the idea to SD of providing the necessary parts to fix this issue, free of charge, because the community diagnosed the problem and came up with the engineering behind the solution.

When a car seatbelt is later found to be faulty, the manufacturer goes through a recall because it was unintentionally designed with this problem.

SD would be selling the parts though so that free use rights thing at Thingaverse dont apply there. and I can see in the current pics SD posted of the new printers the exact same bushings and 'Teflon blocks' as my SD2.

look up Ians topics on solidoodle visit/tour and a forum member tells of a 1 of a kind SD3 he got and its pictured in the "printer farm" Ian shot. yet SD denied any knowledge of it ever being from them.

Thank You

also the working printers would cost much more lol

all owners of SD 3D printers should know as rattly and fragile as they are they are lucky to turn out anywhere near the quality prints they do without mods/upgrades. for DIY price you dont get an industrial precision factory on your desk top. all prospective 3D purchasers need to understand this fact of life.