CR10'ish_Toolhead_on_Rails_for_Orbiter2_and_Rapido

thingiverse

CR10'ish Toolhead on Rails for Orbiter2 and RapidoAs my old CR10 bowden printhead broke away it was time to replace it with something that can print with more than 10mm³/s (and as direct drive extruder). From another project i had a Pheatus Rapido and an Orbiter 2. As I converted my system already in a railed system I first looked at the mighty EVA Toolhead. But EVA is for top rails only which is very common in xy-core systems. So I decided to take the Rapido mounting/cooling system from EVA and build my own cage around this for front rail mounts. To make it stiff I decided to let it print/cut from aluminum at PCBWays. Orbiter 2+Rapido+Cage+Hotend_Rapido_EVA+Backplate =~360g. The enormous stiffness helps to print on point. Actual speed is 350mm/sec @ 2900mm/sec² accel. with Steppersonline Motors (2Amp/phase) and TMC5160 Stepperdrivers.Maybe someone could find it usefull for further modifications. Step files included. Use at your own risk!!!Parts:Backplate - Connects the MGN12 carrier with the HeadHousing and provides handles for the X-belts.HeadHousing - Is connected to the Backplate. It provides the mounting holes for the orbiter 2, the BL Touch and some more for future stuff. Most mounting holes have 2.7mm diameter to take a manually applied M3 thread for direct mounting. Hotend_Rapido_EVA - Connects fan and Rapido to a unit which is then installed inside the HeadHousing. This part is not from me, but from a snapshot of the mighty EVA Printhead project. It's just provided to complete this printhead as the EVA project is a very active project and parts might get changed in the future. It turned out that the M3 nuts fit perfectly with a part made out of plastic but made out of aluminum didn't fit. I used 2 component glue and drilled 2.5mm holes afterwards to apply M3 threads. Maybe future work:Partcooling fan. Lighter version without EVA Cooling Frame (Hotend_Rapido_EVA).