Micro Kossel with upgraded raised effector |
Effector version 1 with one fan installed for testing |
For my second iteration, I decided to move the effector so it's just above the wiring, basically made it shorter, the design work was fairly quick this time, so I printed version 2 the next day.
Effector V2 |
Version 1 (left) and Version 2 (right) |
Hot-End clamp with mounting screws |
For the non-printed parts I'm using a pair of 3010 box fans with 2 of the corners cut off, 6 M3x20mm screws, and 2 M3x10mm screws.
V2 with hot-end fully clamped |
This solved the wiring issue, so I proceeded to install the rest of the components, only to find that the fans protruded too far from the effector and jammed against the rod arms, not much of an improvement over the 'tuna can' effector. So back to the drawing board for version 3.
For Version 3, I moved the fans upwards so they are fully above the hot-end and rotated them 180 degrees so the lowest edge is pointing inwards towards the Bowden tube, not outwards. As you'll probably notice, the v3 prototype's fan mounts are a bit rough around the edges, that's because my Mini Kossel was being glitchy about printing V3, just some kinked filament, so I cut the fan mounts off the V1 and epoxyed them to the incomplete V3 print.
All that remained was to attach the rod-arms and test the range of motion, the V3 design allows the effector to practically touch the drive belts without issue, and adds a full 5 cm to the maximum build height, bringing the maximum build volume up to a 13 cm diameter by 11 cm high cylinder.
You can find the stls for the raised effector here: Body Clamp
Non-printed parts:
2 3010 case fans with 2 corners removed (see photos above)
2 M3x10mm screws for the hot-end clamp
6 M3x20mm screws for mounting the fans and hot-end clamp
Version 2 (Left) and Version 3 (Right) |
For Version 3, I moved the fans upwards so they are fully above the hot-end and rotated them 180 degrees so the lowest edge is pointing inwards towards the Bowden tube, not outwards. As you'll probably notice, the v3 prototype's fan mounts are a bit rough around the edges, that's because my Mini Kossel was being glitchy about printing V3, just some kinked filament, so I cut the fan mounts off the V1 and epoxyed them to the incomplete V3 print.
V3 with Hot-end installed |
Version 3 fully assembled |
All that remained was to attach the rod-arms and test the range of motion, the V3 design allows the effector to practically touch the drive belts without issue, and adds a full 5 cm to the maximum build height, bringing the maximum build volume up to a 13 cm diameter by 11 cm high cylinder.
You can find the stls for the raised effector here: Body Clamp
Non-printed parts:
2 3010 case fans with 2 corners removed (see photos above)
2 M3x10mm screws for the hot-end clamp
6 M3x20mm screws for mounting the fans and hot-end clamp