Arduino/Motor Shield Enclosure (Picture Heavy)

I know the feeling. The nice thing about printing it is that it can be customized to fit your needs :wink:

Sorry for the delay getting the updated model together. I have been building my Maslow and haven’t spent much time at my computer. I just finished working on a version that mounts flat to a piece of plywood or the side of a 2x4 using 6x #8 flat head screws.

If anyone wants one printed, they are available for $40.00 with hardware, all the needed wiring done, shipped in the USA (I’m not sure how much international shipping would cost). You will need to provide your own 80mm case fan.

Link to STL, STEP, IGES, and Solidworks Files:


Very nice case! I wanted to let you know I did a remix of your design. I just needed something simple and didn’t want to add cable extenders, this gives me a fan mount and a mount for the maslow circuit board.


@MeticulousMaynard I don’t know why I’m just now seeing this but this is great! Good work!
I’m curious, why did you choose to make the output vents in the sides rather than the end of the enclosure? I would assume you might get better airflow past the heat syncs if the case was vented on the end opposite the fan instead. Maybe I’m wrong, was there a purpose here I’m missing?

I had an idea in my mind to make an enclosure that had internal cowling to direct the airflow almost entirely through the heat syncs. The idea being that any air that passes the board more than about 1/4" away is really just wasted as it won’t do much to carry away heat. If one were to force the air through a smaller area then the velocity increases, therefor your cooling is more efficient… right? I don’t really know. This is just an idea.


Yep, that would be right. The more flow you get in close contact with the heat sink, the better your cooling. Well, until your velocities go supersonic, that is! :wink:

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That’s the plan! :stuck_out_tongue:

Really like your design! I saw an email come in about the remixed model, very nice. I decided I didn’t like the cable extenders myself.

Thanks! I had figured that this thread had gone dead a long time ago.

You are entirely right. After I finished printing the prototype, I realized that was a design flaw. I actually made the changes you were suggesting to the Thingiverse file. When I went to print out the improved version, my extruder didn’t heat up and I haven’t a chance to troubleshoot it. If I can’t get it working, I may just canabalise the steppers and linear guides and make a Prusa i3 clone.

I like that idea a lot! I hadn’t thought of making internal cowling to force the air to go through the heatsinks. Definitely an improvement I’d like to make when I get printing again.

I actually have an update of my own to show. Now that I have my machine working, I finally have put the case to the test:

The cooling this design offer is definitely an improvement for the machine. I didn’t test the heat-sinks with any sort of thermometer, but they stay very cool, even when I’m cutting along the top of the machine. I have left the door out for now, partially because I want to still be able to access the PLC while I am still setting up the machine. This photo was taken before I set up the Z-Axis, so that cable is missing in the photo. I’m trying to figure out how I want to route all the electronics around so everything is zip-tied in place. I have also left out my extenders, it simplified the system greatly, it was just one more part that could go wrong.

I actually made up a second version of the design:

Fusion 360 Link:
This file is avalible in the MaslowCNC Fusion 360 folder that @mrfugu and I have been working in. Not sure how to share that link.

I’m hoping that this solves quite a few problems I had with the previous design. I am still planning on making some kind of cowling to go over it, possibly hold the heat sinks in place mechanically and force air over them better, as @pillageTHENburn suggested. I also am planning on making an actual electronics cabinet that this will be mounted in. As such, I’m less concerned with dust isolation.

Now, if only I can get my printer working again…


what about a version out of wood? mdf / plywood cut on the maslow

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I was going to design a wooden one but my brain still thinks in “laser cutter” and I’m trying to train it to think in “maslow”… It should actually be about the same, just the kerf size is slightly more limiting :slight_smile:

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Definitely a possibility, I had thought about that myself. At the time, I had my 3D printer but not my Maslow, and I wanted to get started on the project. Also, I figured it would be less assembly if I printed the case with the mounting point for the fan as opposed to cutting out parts and gluing them together. I’d make a new one out of wood, but the case I have works well enough for my purposes. When I get my printer working again, I’d like to work with the design I’ve already put time into.

If you’re looking for a wood arduino enclosure, @mexicomillionaire did exactly that:
More pictures in his machine gallery:

Hope I’m not overstepping by posting links to his projects here.

I’m familiar with the feeling. Some days I feel like the biggest limitation to my machine is myself. I’ve worked in cabinet shops and scenic shops for the last couple of years so often I’m thinking in boxes and flats. I know that there is so much more potential in the machine than just that, though.


It all makes sense when the machine can build it’s own parts and spare parts. This allows evolution. Maslow as an organism?

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Can’t go wrong with hot glue unless you’re gluing/protecting/waterproofing something that gets hot. Good for strengthening 3D printed parts too

Finally took a pic of my modified arduino mount.


I would love to buy one of these housing for our new Maslow if you are still selling them

My printer isn’t presently set up, but I could fix that. I moved about a month ago and between fixing up the new house and my new job, I haven’t had as much time as I’d like for printing and Maslowing.

The case that I have on this Thingiverse page is $30 shipped domestically. I’m not in a place where I can ship internationally. I have made a change, where I used to have wire extenders for the motors now there is a mouse-hole to route the wires though. I didn’t like the added complexity of the extenders.

Admittedly, I actually like @Matt_Nelson’s design more than my own, but I don’t want to make money off of his work.

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Dumb question aboout what is proably a fusion360 misunderstanding on my part… how do I download that as an STL so it’s printable. It keeps coming with the fan and the boards in it. I’ve tried hiding them. I’m clearly missing something. It looks like that one would actually print on my smaller print bed… the others have been too long.

Would you consider making your enclosure longer to fit the TLE shields. I’m working on one but thought I’d mention the TLE design is longer. ~110mm (4.31 inches)

I’m trying to come up with a design based on reversing Richard Dysons design to let air in and keep dust out.

Thank you

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just add a dust filter in front of the pc fan, they come in just about every size

thanks for sharing that 3d printed case. you should add some rubber bands or something around those heatsinks they tend to fall off and when they do it fries the board from what I have read.

In Fusion 360, you can right click on the part in the part list and select export as STL. Fusion will only export that part geometry to the STL file for printing. Fusion is a free program for hobbyists and start-ups, so it should be fairly easy to do. I know there is also a browser version, but it doesn’t have the full functionality of the desktop version, so I’m not sure if the export to STL option is available.

I have not yet updated the enclosure for the TLE shields. @blurfl sent me the SMD version, so I will need to make an updated version for the new board. I have some rudimentary plans in the works but haven’t gotten to modeling it. Still focusing on getting the new Z-axis setup done first before I get back into making a proper electronics cabinet for my machine.

Curious to see your dust exclusion design. I plan on putting the new version inside a cabinet which will have air filters, so I won’t be worrying about filtration at the PLC.


Ahh I didn’t know that fusion360 trick. I ended up using somebody elses smaller form factor model because it would fit on my printer. Which is a very small 150mm x 125mm bed. I suspect it will have trouble if those heat sinks get really hot, because I printed it in PLA. But I’ll solve that when I get to it. I’m considering a larger ducted filtered enclosure for the maslow boards and the raspberry pi I’m using to drive it. But I’ll probably build it out of a plastic container from the store.