I've been researching my options to convert what I have purchased for the 3DR simple into a Kossel. Ultimately, if I can't get it to work right then I'll convert it. I recently purchased a MakerfarM I3v upgrade kit for my MF I3, though, so anymore printer purchases will hae to wait.
I found one interesting problem with my 3DR Simple. The Z-carrriage mounting lugs for the diagonal rod were cracked. The crack was such that it allowed the through bolts to sit lower on the carriage. This could account for the LOW nozzle height when the Z-carriage was raised (bolts/arms) move down slightly as would happen when the machine is moving the nozzle from y to Z (Z carriage moves up). I dind't have any more spectra line so I superglues the carriage lugs back together and reinforced them a bit. I'll print some more at a higher infill when I get more spectra line. I might get belts/pulleys anyways although it would be a shame to waste the money I spent on the machine spools.
I found one interesting problem with my 3DR Simple. The Z-carrriage mounting lugs for the diagonal rod were cracked. The crack was such that it allowed the through bolts to sit lower on the carriage. This could account for the LOW nozzle height when the Z-carriage was raised (bolts/arms) move down slightly as would happen when the machine is moving the nozzle from y to Z (Z carriage moves up). I dind't have any more spectra line so I superglues the carriage lugs back together and reinforced them a bit. I'll print some more at a higher infill when I get more spectra line. I might get belts/pulleys anyways although it would be a shame to waste the money I spent on the machine spools.
