Hộp Deck Commander MTG Nam Châm, Cửa Sổ Toploader Trưng Commander

Magnetic Toploader Deckbox

Hello, this is my custom deckbox design that I use to store and transport my commander decks! My goals while making it were:

• to not be much wider than your typical deckbox

• a strong magnetic lid that would be able to support the full weight of the cards + deckbox base

• to show off your commander, without having extra space around the card

• to be high enough quality to sell online

While it may look extremely basic, it is actually an extremely polished model that went through dozens of iterations and months of testing before I finally decided it was ready to post. I am a perfectionist, so I can assure you that this design is high quality and will be a great addition to your deck protection suite. 

Most importantly, it looks great when stored away on a shelf, and shows off your favorite commanders!

UPDATE 01/18/2026: I found new magnets that aren't priced ridiculously, and I have updated the links! Happy printing!

UPDATE 01/21/2026: Check out the new color-combo lid collection! Here's a picture of some options:

Features 

This box has the following features:

• absolutely NO branding

• a STRONG magnetic lid (trust me, you probably won't want to put all the magnets in)

• 2 large thumb slots that make it easy to pull out your deck, even with new, slippery Dragonshield sleeves!

• a window that will align with the edges of your commander card (this took a few tries!) 

• the ability for the lid to stick to the back of the base, so it won't be in the way on the table

• a card capacity of 100+ single sleeved cards and even some tokens!

• the ability for multiple boxes to align themselves horizontally using the magnets

• slim enough to not feel bulky compared to acrylic deckboxes (gamegenic bastion for scale)

• a slot that fits all toploaders (or at least all of the ones I've ever been sent by TCGplayer sellers)

How to Print Your Own

This is a pretty easy print, although you DO need specific magnets, and I have some print setting suggestions.

The Magnets 

The magnets I use are listed as 20x5x4mm, BUT the actual magnets end up being closer to 19.7x4.7x3.7mm. The tolerances on this model are EXTREMELY tight, so I would recommend ordering the exact same magnets from Ebay. Here is the link I will also put it at the very bottom of this posting.

The magnets I recommended are no longer available on AliExpress. I am currently looking for an alternative. If you find an alternative that is similar in size, please let me know. I would guess they need to be at least 3mm thick.

The magnets are way better than the ones I could find on Amazon, and they're not too expensive. Some of the magnets will come chipped from the factory, but they are still more than strong enough to hold the box closed, even when full and only supported by the lid.

I would recommend 12 magnets (6 in the lid and 6 in the base) for the correct amount of holding power. I have one deck box with 16 magnets (8 per side) and it is quite difficult to open. I have left all 16 slots in the model for those that wish for a grip strength workout every time they open their deckbox. :D

Here is a picture of the slots in the lid of the deckbox:

Setting Suggestions

The main setting I'd recommend changing (in Prusaslicer) are the following:

• External Perimeters first → On

• Perimeter Generator → Classic (not Arachne)

You might not have issues if you leave these settings unchanged, but some filaments and will show the magnet pockets on the outside wall of the deckbox (due to how thin the wall is) and changing these settings may mitigate them slightly.

When I use Prusament/FlashForge Galaxy Black PLA on my Mk4 and I do not have these issues, but when I use my typical PLA (VoxelPLA), I have issues, and it bothers me. Many people I've shown the boxes too are not bothered by the slight hint of the magnets slots, so take that into consideration.

Another thing you may be able to do to mitigate this issue is using fuzzy skin, but I have no experience with that. Please let me know if you try it out, I am extremely interested. 

Print Pausing

In order to get the magnets embedded into the prints, I use a pause and some super glue gel to hold the magnets in place. You need to make sure that you pause at the end of the very last layer of the magnet slot. With how tight magnet tolerance is, you may not need glue. Sometimes the nozzle passing near the magnets pulls the magnets out of the slots because of eddy currents (even if it's a brass nozzle). 

If you have a steel nozzle, I would absolutely make sure to use some glue.

If you are using super glue, it should be no issue thanks to the glue slots I've included at the bottom of the magnet slots. It reduces the chance that glue gets on the nozzle during the first layer after the pause. 

Here are pictures of the slots on the base of the deckbox:

Magnet Orientation

It is extremely important to get the orientation of the magnets correct. I always use the same orientation so my lids can be used interchangeably, and more importantly, the boxes will align themselves on my shelf. If you are planning to make multiple boxes, I recommend marking which side you will use as North on all of your magnets using a permanent marker. Otherwise you may end up with a deckbox base or lid that doesn't play nicely with the rest of your deckboxes :)

Make sure to skip the magnets in the dashed rectangles if you are not a grip strength god!

Here is the orientation of the magnets that I use:

please note that window is at the bottom in both photos

Conclusion 

I made this deckbox over the course of a few months and it took me ~5 major versions to get it to start resembling what it looks like now. I really hope you like how it looks, and if you do, please leave a like or post a comment. If you do make it yourself, please post a make!

If you want any special modifications or versions, please let me know. I'll think about posting a new version, and I'll send you a link!

If you don't believe the magnets are very strong, check this out!

The full link to the magnets:
https://www.ebay.com/itm/286120076917