3dupfitters Store

Enclosing a 3D printer not only improves prints, it reduces exposure to noxious plastic fumes that smell bad and may cause long term health problems. We don't make 3D printers; we make 3D printers work better.

3DUPFitters Prusa i3 MK3S and MK2 Acrylic Enclosure Kit

5 out of 5 based on 1 customer rating
(1 customer review )


The only thing the Prusa lacks is an enclosure to make full use of its capabilities, as well as retain the smells and air contaminants from melting plastics. This is a professional-grade, cool-looking enclosure you can assemble in about an hour, and works with a perfectly stock Prusa i3: no modifications needed.

Manufactured in: United States (US)

Oz Robotics' Partner : 3dupfitters Store
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3DUPFitters Prusa i3 MK3S and MK2 Acrylic Enclosure Kit

3D Printer Not Included. Shipping only to North America, the European Union, and the United Kingdom.

The Prusa i3 line is based on the RepRap open-source hardware, but has the capabilities, fit and finish, and attention to detail of a much more expensive printer.  In a market awash with inexpensive printers full of crappy parts that wear out quickly, everything about the Prusa i3 is quality:  a hot end that can print anything, a best-in-market removable bed, and a slicer tuned to make the most of the printer.

The only thing the Prusa lacks is an enclosure to make full use of its capabilities, as well as retain the smells and air contaminates from melting plastics.  This product is a professional-grade, cool-looking enclosure you can assemble in about an hour, and works with a stock Prusa i3: no modifications needed.

Advantages of adding a 3DUPfitters enclosure:

  • A controlled temperature creates better quality prints
  • Provides outside air to the power supply with no modifications to the printer
  • More flexibility to print different types of filaments, including ABS
  • Optional fume filter or vent to the outside (both sold separately)
  • Thick 6mm acrylic doors and 3mm sides

The enclosure works by retaining the heat from the bed to bring the ambient temperature up high enough, stabilizing ABS and other filaments that expand when they cool. The optional fan will draw cool air across the power supply, simultaneously heating the air and cooling the supply.  The heated air circulates within the enclosure providing a steading temperature; from there the air can be vented into the room, sent through an optional air filter (not included) or vented to the outside via a hose. (not included)

Note that because of the close tolerance around the power supply, the height of the printer must be stock for the MK3 with its rubber feet.

Includes Multimaterial Unit (MMU2S) Support

The enclosure fits your Prusa if it also has an MMU2 or MMU2S. To support the MMU2/S there are four grommeted holes in total, two in the top (for top-mounted spool holders such as a cabinet), and two at the back for table or wall-mounted spool holders.

How it’s Built

All of the plastic parts are 3D printed in ABS to withstand the heat from the enclosure. The panels are cut on a US-made industrial laser and then flat packed for your assembly.   All you need for assembly is just a hex wrench and a small Phillips head screwdriver.  (not included.)


  • Outside dimensions 22.5″ (Deep), 17.72″ (Wide), 20″ (Tall).
  • Fits the standard Prusa i3 MK3/MK3S and the MK2 with DIY feet with or without the MMU2 or MMU2S.
  • Acrylic spool holder
  • 6mm acrylic front panel with frame, doors, injection-molded hinges, magnetic latch, custom-designed latch mount in ABS, steel strike plates, and matching screws.
  • 3mm acrylic sides and top with access ports for cables and filament. There is no bottom. The enclosure is designed to sit on a flat surface that acts as a bottom.
  • 60x60mm USB-powered fan.  3D print a cover if you don’t wish to vent.  (USB power supply not included.)
  • One hundred forty screws, nuts, bolts, all connecting plastic pieces, and miscellaneous parts.

Add-ons Sold Separately

  • Upgrade to an active charcoal filter and fan to reduce fumes.
  • Upgrade the plastic knob to knurled steel.
  • Put your logo on the front or sides.
  • The outside venting system will send potentially dangerous and  odorous fumes outside.  We supply the fan and dryer hose adapter; you get the rest of the parts from your local hardware store.
  • Interior LEDs
  • Temperature gauge and custom holder
  • Want something different?  Request a custom modification.


Weight 12 lbs
Dimensions 30 × 5.5 × 24 in

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1 review for 3DUPFitters Prusa i3 MK3S and MK2 Acrylic Enclosure Kit

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Dear Customer, if applicable, the Product Documentation, Reference Materials, CAD or Drawing file(s), Manuals and Tutorials will be available for download upon purchase. The order confirmation email will include a Downloadable Link to the product file(s) which can also be downloaded from the My Account section if needed. If you can’t see any of these files in your account, please contact us immediately. We’re here to help, whenever you need us. Thank you.

If you have any questions with regards to this product, please fill out the form below. When you submit this form, the product URL will be included automatically.

I’d been keeping three 3D printers busy nearly 24/7 for a while and aside from the noise, it didn’t bother me. But when a significant other moved into the house she noticed right away: the smell of plastic permeated everything, and the long term effects of breathing in plastic fumes regularly can’t be good, especially on kids.

Shipping Policy

For some products, the shipping cost is calculated based on the product weight, not based on the quantity of items in the order. To benefit from lower shipping costs for orders with multiple items, please contact us at sales@ozrobotics.com. Click HERE for more on Shipping, Exchange and Refund Policies.

DUTY FEES, IMPORT TAXES, and CUSTOM FEES MAY APPLY: Some International shipments may be subject to a very small import tax. The total amount for your order does not include any duty fees, import taxes, or custom fees if applicable in your country. All import duties must be paid by the buyer. Oz Robotics is not responsible for import fees, duties, or additional customs clearance charges for any shipment. On the each product page; please check “Manufactured in:” section to see from where it is going be imported.

SHIPMENT: We use UPS, USPS, DHL, and FEDEX for all orders because they are reliable, fast and easily trackable. We usually ship within two business days after the full payment is received. Standard Delivery generally occurs within 3-5 business days after the ship date. However, sometimes delivery time depends on destination, logistics mode, weather conditions, size and weight of the product. Our shipping rates are listed very clearly on each product page under SHIPPING tab. In order to see the shipping cost, just add your item to the Shopping Cart, there you will see Estimate Shipping button. Just click on that button to see the shipping cost based on your Country and Location. Click HERE for more on Shipping Policies.

Return Policy

EXCHANGE POLICY: Oz Robotics wants you to be happy with your new purchase. However, we abide by the exchange policy of our suppliers because we do not manufacture these products, our suppliers do. Please read the product exchange policy that is defined by each supplier for their own listed product(s) which can be found under the Shipping tab on each product page. Once you have used the product, we and our supplier(s) have the right to not issue a refund, but exchange for the wrongly purchased items, or products have serious and irreversible quality defect problem(s). In the case of wrongly purchased products or any other similar issues, the shipping fee will be paid by the buyer/customer. If the product you purchased is defective, please email us at support@ozrobotics.com with some photos, or a video of the defective parts for us to evaluate before you send. Click HERE for more on Exchange Policies.

REFUNDS and RETURNS: Oz Robotics accepts returns on a very limited basis, which unless there is a manufacturing defect. For any electronic items, returns are only accepted on devices which have serious and irreversible quality defect problem, meanwhile, the buyer/customer must apply for the returns within 14 days from the date of delivery. Before a refund acceptance please include images or a video, and any other material proof of the defect. However, we abide by the exchange policy of our suppliers because we do not manufacture these products, our suppliers do.

Please check our supplier Exchange Policy under “Shipping” tab on each listed product page. Other than our supplier’s default policy, once a return is agreed upon, then you can ship your defective item to the provided return address that you should receive from us first. Please ship the order in original packaging with all the accessories and additional parts. If the Required Parts are not sent back, then it will be billed for, or expected to be shipped at a later stage. And only once all items have arrived as a full system, then we can check the returned product for testing. Include in your package a signed letter stating the reason for your return and the original receipt as well as any above mentioned proof of defect, images, or a video etc. This will help us to speed up the process on your behalf.

The purchaser (customer/buyer) is responsible for all shipping costs when returning an item. However, upon receiving the returned order, we will assess the product, and if it is determined that there is in fact a manufacturing defect then we will refund the shipping costs as well as repair, or replace or refund the full amount to the purchaser if the product is not fixable.

If you wish to return a product, please do so within 14 days from the ship date for a refund on the purchase price, minus shipping, handling. Refunds will be credited to the original credit card use for payment in 24-48 HOURS after receiving the product back. We will charge 20% restocking fee.

Once your return is received and inspected, and if agreed for a refund, then refunds will be credited to the original credit card used for payment in 24-48 hours. Please note that we will charge 20% restocking fee if you want to return a product that does not have any defect.

Once your refund is processed, then PayPal will return the money to the card that was used. It may take at least 5 business days (depending on the bank and credit company) before your refund is officially posted in your bank account and statements. Contact Us if you still have not received your refund after 5 business days.

Do not return your product to our New York office. For any exchange or refunds, please email us first at support@ozrobotics.com for us to provide you with the steps that need to be followed. Any product you return must be in the same condition you received it and must be returned in the original packaging without being used. Please keep the original receipt. Click HERE for more on Shipping, Exchange and Refund Policies.

Shipping costs

Country State Cost
United States (US) California $40.00
United States (US) Oregon $40.00
United States (US) Arizona $40.00
United States (US) Washington $40.00
United States (US) North Carolina $15.00
United States (US) South Carolina $20.00
United States (US) Virginia $20.00
United States (US) Colorado $30.00
Any Any $200.00
Netherlands Any $65.00
France Any $75.00
Germany Any $75.00
United States (US) Any $25.00
United Kingdom (UK) Any $70.00

Shipping Details

Shipping from United States (US)
Free shipping if the spend for the product is over this amount $1,000.00

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