Prusa i3 MK2S 80mm PSU Fan Mount (2 options)

prusaprinters

At the request of mrhappydude I put together a PSU fan mount for the MK2S. This initial version isn't for a 120mm fan as he requested, its for a 80mm fan instead (I didn't have any 120mm fans handy). Option 1: This mount should support any 80mm fan, 10mm-25mm deep with its adjustable nature, fitting a 120mm fan might be a challenge as the case is less than 100mm across... You need to print: 1x - Fan Shroud for Clips.stl 4x - Fan Shroud Clip.stl Option 2: I had another idea stuck in my head for this part which I also just completed and tested... its a minimal version which prints fairly quick and lets you use any 80mm fan shroud/screen you want, but its a little tougher print... at a minimum its just 4 pegs that lock into the case that have threaded shafts and thumbscrews to hold the fan in place. You need to print: 4x - Fan Shroud Grill Peg-thumbnut.stl 1x - Fan Shroud for Pegs.stl (only if you want to use the bundled shroud, else use can omit) Comments greatly appreciated, let me know what you think! Print instructionsCategory: 3D Printer Parts Print Settings Printer Brand: Prusa Printer: i3 MK2S Rafts: No Supports: No Resolution: .15 Optimal Infill: 100% Notes: All tested parts printed in ColorFabb NGen (as I have lots) I'd normally print this in PETG, but PLA should be fine as well. 100% infill vs 20% only changes the filament use by 10cm or so, you could try it at 20%, but the few mm of savings isn't really worth it. Post-Printing Build & Assembly Notes: General: I'd align the clips so the teeth are printed on the X-axis (long side front to back) or the pegs so they line up left to right to maximize the resolution as the X-Axis has the least momentum, but either orientation works (I printed both to test). Assembly: Option 1: press the 4 printed clips into the shroud, they should ratchet into place, only push them about half way in. Look at the teeth and orient the top and bottom as required. Push the fan into the shroud, it'll lock on the pins Place the assembly on the side of the power supply and rock/move it side to side, top to bottom until the 4 clips pop through the PSU and lock in place, take your time, it doesn't take pressure, just movement. keep rocking/pressing the assembly towards the PSU until it ratchets as far as it can and is tight. if you're concerned about it coming loose.... yep... the hole in the end of the clips is just the right size for a little piece of filament to go in... put that in and they can't pop back out... Option 2: figure out which slots line up with the fan holes you need. The top pegs catch on the top edge of the upper slot you figured out, then let them drop down, they won't fall out. then its easiest to put the bottom two pins through the fan and just start the thumbnuts, then catch the 2 lips of the pegs on the bottom edge of the lower slots. rotate it up and which will keep the bottom ones from falling out and onto the top pegs, put on the last 2 thumbscrews and tighten them all up.How I Designed This Option 1 Option 2 Revisioning: v1.0 - Initial upload v2.0 - added a second mounting option.