Temp Controlled Build Enclosure for UM2

Regulates temperature for better ABS prints etc.

3D printer parts and enhancements

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Set start temp at the desired temperature and stop temperature to 1 degree above that. (Picture shows set at 45 degrees with current temp at 25 degrees.

Materials and methods


1200 X 600 X 3mm Sheet (PVC, Acrylic etc.)
12V 40mm Fan
12V Power Supply
Chassis socket (to suit 12V Power Supply plug)
temperature controller on ebay http://www.ebay.com/itm/9-C-99-C-DC-12V-Intelligent-Digital-Led-Thermostat-Temperature-Controller-/321723841989
Clear Drying Glue
5 metres 6mm X 9mm white door seal strip
Clear Packaging tape
Masking Tape or similar
4 - 20mm X 4mm Screws
67 - 10mm X 3mm Screws
9 - 16mm X 3mm Screws
3 - 25mm X 3mm Screws
9 – 3mm nylock nuts
3mm washers
2 magnets to hold door one needs to be thin.



Download Pictures for Instructions zip file and STLs zip file below.
I printed all parts in ABS with 2mm walls and thicker for hinges
Cut out panels from sheet to nearest mm
Print joiners, all front door parts, door frame mounts and joiner first
Mount front door hinges by replacing current UM screw with a 16mm screw on each one
Use a 16mm Screw for the front door handle.
Glue a thin magnet to the back of the door handle and tape a magnet behind the UM front panel.
Use masking tape to hold panels together making sure that the top panel sits between the left and right panel and not on top of them
Mark holes and drill panels making sure Joiner L4 is positioned in the gap of the cable ducts
Mount joiners and door frame mounts with 10mm screws on panels
Use clear packaging tape to join and seal panels where desired
Glue Top Door frame to joiners right way up and don’t use screws
Put Door seal on the Top door frame
Tape top door in place with masking tape and use the Top Hinges Template to mark mounting holes for the hinges.
Use 6 X 16mm screws for the Top Body Hinges
Mount Left handle with 3 X 25mm screws and Nyloc Nuts
Thread thermocouple through the Thermocouple holder and attach it to the 25mm Left handle mounting bolts with nyloc nuts.
Push thermocouple far enough onto its holder so that the print head will miss it in the fully left position
Mount right handle with 10mm screws and nyloc nuts
Mount the 40mm fan to the fan shroud using 4mm screws
If printing in ABS use enclosure as is to print tall parts like the Bowden grommets
Ground wire goes from the Power Socket to the -DC terminal on the Temperature Controller and the Black wire on the fan.
12V positive from power socket goes to the +DC terminal on the Temperature Controller and to one side of the relay contacts.
The other side of the relay contacts goes to the red wire of the fan.
Glue the cable ducts in place
Duct Lid slides in position from underneath
Un-attach the Bowden cable(s)
Mount the Right Bowden grommets flush with the outside panel of the UM then the left flush with the outside of the UM and with the print head cables passing through the slot.
Join the grommets together with the 2 X 10mm screws there will probably be a gap between them.


  • Placeholder
    Pictures For Instructions
    ZIP  –  3 mb
    Version 1 - Feb 26, 2017
  • Placeholder
    St Ls
    ZIP  –  3.5 mb
    Version 1 - Feb 26, 2017


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7ab50ab25b56922598ecf5652a34aac4?default=blank&size=40Masher added this to the 3D Upgrade collection ago
Ff44c60ec2225e93a722fbb5c17c0f6c?default=blank&size=40MadZeus added this to the Enclosures collection ago
Mini johnhentzJohnHentz added this to the retre collection ago
9ef29c349f91fc33e728ef9307ace5ab?default=blank&size=40Q3Soft printed this ago
Carousel thumb bowden um3  00
Printed on:
ultimaker 3
I have had to adapt the fixation on the ends of the Bowden mount to adapt the design and use on my Ultimaker 3.
9ef29c349f91fc33e728ef9307ace5ab?default=blank&size=40Q3Soft added this to the Q3soft collection ago
Fe9d2a836a6694a32426954e541933e1?default=blank&size=40arrdvarrk added this to the Enclosure collection ago
Mini 20160503 014.pngMuhin555 added this to the Like collection ago
F6255ee0dadfb1bb858c901e855bd9d5?default=blank&size=40Zoran Vila added this to the ZV Ideas & Inspirations collection ago
Db217328cc81a7fb4ef79580977df620?default=blank&size=40owen commented ago

Yep, that's right. Good luck and leave any questions here if you have any.

1da19e901b88f2f023dd67a14c7caa07?default=blank&size=40rebekah3505 commented ago


sorry I thought it has it's own heating system. but I am guessing it is heated by the build plate and hot end.

I am going to give this a go.

6e6b575ffd38904588ff257518db9ddf?default=blank&size=40gbLenaPark added this to the Saved collection ago
Db217328cc81a7fb4ef79580977df620?default=blank&size=40owen commented ago

Hi Becky

I assume you mean fahrenheit as 100 degrees Celcius would be way too hot and it wouldn't get there.

All these temps are in Celcius.

On a 16 Degree day. It took 30 minutes to increase by 22 degrees to 38 degrees. This was with the bed heating to 100 degrees and the nozzle at 250 degrees printing ABS.

The bed took 12 minutes to get to temperature.

It will usually get to 45 degrees except it might fall a couple of degrees short on a very cold night.

I usually start printing straight away without waiting for it to reach 45 as the initial layers benifit from the heat from the heated bed.

I'm getting good results printing ABS with it set at 45 degrees.


Ae656a9da677f4df02f113afd4375e4d?default=blank&size=40Young Joon Kim added this to the Ultimaker2 collection ago
1da19e901b88f2f023dd67a14c7caa07?default=blank&size=40rebekah3505 commented ago


I was wondering about the temp controller. How long does it take to heat up to 99 deg in the chamber?

many thanks


Mini screen shot 2013 07 15 at 6.49.36 pmErik de Bruijn added this to the Ultimaker 2 upgrades! collection ago
Mini reiner 001 2Reiner Bühl added this to the Ultimaker2 collection ago
Db217328cc81a7fb4ef79580977df620?default=blank&size=40owen published this design ago