Thanks... we printed the plastic parts on a Makerbot Replicator 2 in PLA, using mostly standard settings. I really like how the 3DR works - after the initial problems sorted out, I find no serious weak points in the design. The only thing I currently plan to modify is to build a weight optimized platform: a one piece printed part which integrates platform, j-head holder and fan mount. Now what'by HaDe - Delta Machines
>> Anyone finished one printer so far? << Yes - my 3DR is up and running real nice for two weeks now. Some things come to mind: - for the upper Spectra line idlers, I use (in this order) a M5x18 dome head screw, two 625 bearings, M5 nut and a *large* M5 washer. Quite sturdy and fits (although tight) unter those upper covers. - for attaching the Spectra line to the carriage, I putby HaDe - Delta Machines