MPMD Dual Fan Custom Effector

thingiverse

Warning (28/11/19) The PLA filament used for printing was too soft at higher temperatures, causing distortion in the model's structural portion. This happened when I printed with a nozzle temperature around 135 degrees Celsius, which softened the front of the effector enough that it began to warp. The framework eventually distorted as I forced the front of the effector to bend downwards. As a result, the effector no longer sits perpendicular to the bed and will cause tilting during prints. To fix this issue, I plan to print a new version using a higher-temperature filament. This distortion is not immediately noticeable and only becomes apparent after several prints. It does not occur during individual prints but rather over time, making it easy to overlook. Note (21/11/19) Thingiverse took so long to display the files that I failed to notice I had uploaded an incorrect collar file. However, I believe I have now uploaded the correct version. If you find any discrepancies, please let me know. I have removed the older version and replaced it with a new one in clear filament. The newer design is still available for download. Note (23/11/19) One of my rod bolts was loose, which I attributed to excessive disassembly and reassembly. This caused the lock washers to become bent out of shape, rendering them ineffective. To fix this issue, I plan to use new lock washers or apply loctite to the threads. However, using loctite or nail polish may make it difficult to remove the nut if it becomes stuck inside the plastic slot. A better solution might be to replace the bolt with a longer one and install a locking nut on the inside. Regardless, ensure that these bolts remain tightened, as looseness can negatively impact print quality. This design is an improved version of a previous model I created. https://www.thingiverse.com/thing:3878639 Read through the information provided for that model, as much of it applies to this one as well. This updated design features an enhanced air distribution vent fed by a 30x30x25mm fan and includes full supports on the rod ends to prevent them from brushing against prints. The main body only requires support on the fan clips and bolt protrusions above the clips, allowing for successful printing with Cura's support blocker. The new design also raises the rod ends slightly, providing more clearance between the effector base and the nozzle tip. I am currently testing a revised version that includes an angled base to further increase clearance. When completed, I will upload the improved STL files for download. Version Update I have uploaded an updated version of the design, which features raised rod connectors and an angled base for increased clearance. The main body has been separated from the top collar, allowing it to be printed in two parts. This new configuration enables successful printing without supports on the fan clips or bolt protrusions above the clips. The support collar bolts onto the main body using M3 bolts. I have also replaced my nozzle with a slightly longer one, which provides better clearance and allows for easier print removal. By extending the nozzle below the base, the block and silicone sock can sit higher without obstructing vents. I recommend that the nozzle clear the base by approximately 2.5mm to prevent edges from touching the print surface during tilts. Some photos demonstrate how to insert a small PTFE piece into the top of the heatsink to fill any gaps. Please note that this updated version includes improved clearance and support configurations, making it easier to print without issues.