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Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Monoprice Ultimate 40mm blower fan duct

by sgiacci May 21, 2017
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Hey, I just printed one and on the third try it came out great! Question: can it work with the original fan on the Monoprice Maker Select or I need to replace it?

I see 2 links, is there an optimal fan (beyond price difference)?

Link 1: https://www.amazon.com/gp/product/B00ZWG1NE4/ref=as_at/?creativeASIN=B00ZWG1NE4&linkCode=w61&imprToken=z4qLIwRR1qREWxHVevbuTg&slotNum=0&ie=UTF8&psc=1&tag=tv-auto-20

Link 2: https://www.amazon.com/gp/product/B00I2E4R9Q/ref=as_at/?creativeASIN=B00I2E4R9Q&linkCode=w61&imprToken=0l-Z1PT3eUjwWT9zsmmxtg&slotNum=0&ie=UTF8&psc=1&tag=tv-auto-20

Thanks for designing!

Printing Version 7 right now, I'll let you know how it works out on the Monoprice Maker Ultimate/Wanhao Duplicator D6. I'm printing 100% infill, because I want a very solid part

I am about to make a modification to include an all metal hot end, so I will let you know soon. As well as give a detailed account of how things have gone.

Would you be willing to share a Fusion360 file if you have it (only program I know how to use well) ? I'd like to customize for a 4010 blower on the left side, with a brace to see if I can get no loss of build area and still fit a sensor. Once done I'd be happy to post a remix. Always looking for improving cooling on this thing.

I did it in AutoCAD.

I really like this fan duct but I would like to customize it a bit further. Do you still have the stp or ipt (or whatever programm you used) files for this and would you share them with me?

Thank you, but...

Since you provide no information about yourself, nor have you shared designs, then you have not shown you are active in this community. Post some original designs, and tell us about who you are, then I might share the parent files.

This is for a 4020 (40x40x20mm) blower fan? There's a bit of detail/information missing on the "Thing Details" page.

Provided a link to the fan in the comments.

It is possible to remove the plastic below the blower, and add blower support from above?
This way, the whole structure has more clearance towards heatbed.

I considered this, and modeled it up, but I ran into a number of problems. The blower height and material support drives that dimension, so there was no gain in distance from the bed, plus if you raise it too much it affects the cooling, plus it could cool the nozzle even more (already an issue). The blower intake is on top, but it could be flipped but would create more mass extending out in front of the nozzle, and would block the viewing cutout. Also if it is flipped it could draw material into the blower if a print failure occurred.

But you have me thinking, I never looked at rotating it 90 deg. Hmmmm, back to the drawing board possibly.

Sorry, I was not clear. I mean keeping the fan at exact location and position as it is, but add an overhang above the screw hole of fan.
The fan screw hole is only 2/3 the height of fan, there is plenty room above the hole.

Another potential change is to make the ring a full ring as in JGTMaker‘s latest fanduct. No reinforcement is needed that way to keep the ring from sagging.

Ok, I got into the model again, and messed around. Annnd it can be done, but it will not change the fan distance from the bed, because you have to account for the screw head height, which is the same depth as the mounting material.

I understood and that was my first intention, plus my first prototype, but if failed structurally. In order to correct this I would have needed to increase the area around the nut recess and the thickness, with the result of it hitting my front enclosure door. I also didn't like it because it needed a lot of support material, and I was trying to avoid as much support material as possible.

With that said, you got me thinking and I might have some new ideas to make it work. Keep you eyes out for another response or an additional design.

I've run several prints (HOT with PETG), and it is working great. I need fewer supports, but I still haven't done a support test.

Comments deleted.

What material did you use and it is holding up ok? I've tried dual fan shrouds in both ABS and PETG. Halfway through a hot print and it's bent down scraping the print. I think the stock shroud is Polycarbonate.

If you have sealed the printer housing to print ABS, I could see also the potential of sagging. This is the reason why I created this design

Currently it is PLA, but I haven't run any prints using it yet. Considering the lightweight duct around the extruder, added extra support for cantilevers, a blower pushes more air to keep the duct cooler (vs the stock fan), and it is using all of the mounts. I also kept the height as low as possible, so I hope it will not sag.

does this restrict the print volume? what blower fan is it designed for?

I shouldn't restrict volume, because I made every attempt to minimize the footprint, but I haven't tested it yet.

This is the one I used, but there are better ones available with the same footprint.