RR-Evo Delta 3D Printer - [E2] upgraded with Rostock parts

thingiverse

This is a pivotal step in the evolution of RR-EVO. Moving plywood components have been replaced with 3D-printed parts. The previous step: RR-Evo Delta 3D Printer - [E1] plywood version Upcoming steps: RR-Evo Delta 3D Printer - [E3] hot-end mount Description As soon as the device began printing, I started creating new parts to replace the plywood ones. All components are based on the original Rostock design, except for the vertical carriages. The following modifications were made in the carriages: A couple of 'ears' was added to hold end-stop screws at positions that correspond to the plywood version of the carriages; The standard belt holder was removed (instead, I developed a separate tensioner). As you can see from the photos, the quality of the parts was quite poor. This can be attributed to several factors: Lack of experience in 3D printing; Very poor calibration of the machine, not only extrusion but geometry as well - a lack of knowledge about delta mechanics. Despite these challenges, I achieved significant improvements with replaced parts. The tensioners were fastened to carriages using M3 bolts and 'glue' (ABS dissolved in acetone). I attempted to develop a carriage with an integrated tensioner, but the design I got would be difficult to print. Therefore, I decided to leave it separate. The 'glue' was also used to fix some defects of parts and to secure nuts in different places. Alongside these improvements, several major issues remain in this construction: The carriages are still on two linear bearings (swinging) - it would be better to use carriages sitting on 3 bearings (or at least 2 longer bearings); Due to the poor calibration of geometry, printed parts had incorrect and inconsistent sizes, which led to significant troubles during the calibration process of the updated version. I was impatient... that was stupid.