Mar 30, 2014

Some myths about PLA vs. ABS

.. but you probably know all of this ...

DIY 3d printer enclosure made from wood with hair dryer heating element

The enclosure developed by repkid is a simple wooden box made from thin MDF sheets and wooden beams structure. It is insulated by double-ply cardboard glued to the inside of the box. To prevent ABS warping it is heated by simple household hair dryer.

Parts printed inside the heated enclosure on the left, and ABS part printed without heated chamber on the right with warping.

The enclosure with printer inside it

Lasercut thermal vents. They can be done with simple hand tools also

Heater made from simple hair dryer

More advanced version of the enclosure with fumes extractor

Heated chambers for 3d printing are patented by some corporation and I'm not sure what implications patent law has on projects like this one ...

Project on RepRap wiki with more details:

See other DIY 3d printer enclosures:

Enclosure made from PIR foam and 3d printable hinges:

Ultra simple enclosure made from plastic boxes:

Mar 28, 2014

DIY 3d printer enclosure made from PIR foam and printable hinges

Thingiverse user the_digital_dentist made this insulation enclosure from polyisocyanurate (PIR) foam boards and printable hinges.

Project includes various types of printable hinges that hold cut foam pieces  

All the files and instructions:

Here is another DIY thermal enclosure made from plastic boxes:

Wooden enclosure heated by hair dryer to prevent warping:

Low cost simple 3d printer enclosure made from plastic boxes

Cheap, simple and effective 3d printer enclosure made from two plastic boxes by rjacobsson.
He used Ikea boxes, but I think it will work with any plastic container and keep temperature of your print volume constant and elevated from surrounding.
It also reduces the noise and contains the fumes.
Like any enclosure without thermostat it overheat the motors but you should experiment until you discover what works best for you.

Build guide on Instructables:

Here is another low cost solution for enclosure, made from PIR foam but with 3d printed hinges:

Wooden enclosure heated by hair dryer to prevent warping:

Wally and 3d printer testing

Wally is the master of corporate subtle and stealth sabotage ...

Previous Dilbert comic:


Mar 27, 2014

AP video report on legal concerns about 3d printing

Current state of intellectual property rights needs urgent reform. Period. This is short video report about some issues. Julie Samuels from EFF and Cyndi Tetro speak about some potential problems.
Personally, I'm going to print whatever I want ...

For more legal related posts, fear mongering and information see:

Cyndi Tetro

Nomad modular and scalable 3d printable DIY drone

Nomad is project in development of modular 3d printable aircraft measuring one meter in wingspan powered by electric motor. Future versions will be up to 50% larger and able to carry a GoPro camera in their nose. 

Nomad is a project by CaptainObvious   

From project description:
This is the Nomad, a new design I'm working on for a travel UAV/FPV airplane. This version has a wingspan of almost one meter, so it's relatively small. After I've completed and test flown I plan to make a 30/50% larger version to carry a GoPro camera in the nose for aerial photography.
The airplane is meant to be modular, the nose and tail sections are joined to the center section with nylon screws, the wings and stabilizers are detachable and even the wing panels can be kept separate to simplify repairs and testing new design ideas.
  • The wing sections are meant to be printed in a "Spiral Vase" mode, the internal spars and/or printing settings should be adjusted so that the printing head makes the spars by moving in from the bottom of the wing until touching the inner surface of the top of the wing, so there is only one seam at the bottom.
  • I have carefully modeled the fuselage parts so that most of them will print as a two perimeter shell using a 0.4mm nozzle, except where more thickness is needed.
  • The wings need two carbon fiber tubes, 8 and 3 mm diameter, the stabilizer also uses a 3mm carbon fiber tube spar.
  • The plane will use one brushless motor mounted on the tail with a 6" propeller.
  • Things left to do: flaperons, rib between the straight wing panels and the tapered external panel, optional nose wheel, camera turret and internal brackets and supports for servos and electronics.

All files are available at:

For more 3d printed drones take a look at:

Mar 26, 2014

3d printable Dremelfuge and revolution of DIY vaccine creation by Cathal Garvey

Cathal Garvey created well known Dremel / drill low cost centrifuge "Dremelfuge". Here is interview with him where he describes various possibilities of his work. It could help bring more advanced medicine and science to developing world for fraction of the cost of conventional equipment while being open source.
Biohacking is expanding everywhere, workshops are held even in my country of Croatia. 3d printed tools like this could help people everywhere to get economically viable equipment.

If you want to make your Dremelfuge, files can be found here:

First post about Dremelfuge:


Uneducated attempt of 3d printing humor ...

... not so funny, but I'm certain that in future some major player will lock their machine to prevent printing of open source printer parts ... and there will be companies who will go bankrupt from additive manufacturing developments ...

For other, more successful, funny 3d printing stuff: 

Mar 23, 2014

Asiga Pico 3d printer with solid state UV LED light source

Asiga Pico is specialist 3d printer with size of a small kitchen countertop appliance. It is designed with jewelry, dental and medical industry in mind. It produces wax polymer casting for metal parts or uses medical grade biocompatible resin for things like hearing aids. It is priced at USD 6990. It comes with Asiga Composer software.

The Pico is the first 3D printer of its kind to use a solid state UV LED light source. The LED lifetime is up to 50,000 hours and is not classed as a consumable, unlike other systems. The result is consistent curing from layer to layer, day after day, year after year. UV light allows broader materials choices, such as water-clear and pure white materials.
The Pico now has an improved resolution of 39 micron pixel size with a build envelope of 40 x 30mm (X and Y), and a build height of 75mm (Z). With the ability to grow parts in 1 micron increments in Z, the Pico is ideal for high resolution applications such as dental, jewelry and hearing. When building at 50 micron layers, the Pico achieves a build speed of approximately 6mm p/hr.

Pico PDF brochure:

Mar 22, 2014

mbot3d GRID 2 3d printer

From company page about Grid 2:

The GRID II is a third generation printer from mbot3D. This sturdy metal frame 3d printer has one of the biggest build sizes on the market for desktop 3D Printers, 260x230x200mm. It is available in single head or dual head configuration.
The new printer features an automatic build plate calibration system that guides the user through the setup and then at every print probes the surface and uses the calibrated distance.
The printer also features a glass build plate , and a magnetic build plate holder making it a breeze to remove your build plate to remove your prints, which ensures your build plate calibration is kept in top condition.
The mbot3D GRID II also feature single or dual print fans to make sure your PLA prints are perfect every time!
The printer is bundled with a SD card, and an exclusive tool box with the basic tools need for maintenance of the printer.

Technical specifications:

  • Size: 405 mm x 405 mm x 410 mm
  • Shipping Box: 520 mm x 520 mm x 520 mm
  • Weight: 18 Kg
  • AC Input: 100-240V, 50-60 Hz
  • Power Requirements: 24V DC @ 6.25 amps
  • Connectivity: USB, SD card with SDHC support
  • Chassis: Steel
  • Front Cover: PVC Panel
  • XYZ Bearings: IKO Linear Bearings
  • Stepper Motors: 1.8° step angle with 1/16 micro stepping
  • Firmware: Sailfish OS Firmware
  • Printer Host Software: ReplicatorG
  • File Types: STL
  • Operating Systems: Windows(XP/7/8/8.1), Ubuntu Linux(10.04+), Mac OS X (10.6+)

T.Black DLP 3D printer by Trimaker made in Argentina

South America is also developing more 3d printers. Here is T.Black DLP printer by Trimaker from Argentina.


  • Build volume: 180 x 235 x 180 mm
  • Positioning precision: 250 microns
  • Print speed: 20mm ~25mm / hour depending on the dye and the material.
  • Materials: rubber, rigid plastics and low viscosity plastic
  • Weight: 18kg
  • price: 38,720 Pesos ($4,936)

From company page:

The printer is T.Black based stereolithography technology - the selective polymerization of the liquid resin with light. Unlike other inexpensive printers like MakerBot and RepRap, the Trimaker printer does not use a power head for depositing material during the printing process. Instead of using a head, the T.Black constructed by drawing the print object layer by layer with an optical projection - each layer of the object is actually a photo of each cross section. For each layer, the Trimaker projecting a light pattern on liquid resin solidifies and thus the parts constituting the object. The remaining resin can then be used as input for the next printing.
More reliable technology.  T.Black technology is much more reliable because the control of complex mechanical movements is the part that usually fails. · High Resolution. Whether using light to build the object layer by layer allows a degree of much finer and more precise control. The resolution of your printer is more than 10 times higher than other inexpensive printers based on the technologies FDM (fused deposition modeling). The print resolution is one of the most important features that makes the difference between something with the quality of the prototype and the quality of the finished product and this is the main advantage of stereolithography technology. · Control of Color. use of liquid chemicals allows very flexible control of color printing. The user can change color very accurately by adding the proportion of dye which gives exactly the desired color. · Control of Multiple Properties. stereolithography process works with a variety of inputs. The designer can choose from a variety of materials with different degrees of hardness, density, transparency and other properties.

The fact that both the hardware, software and materials develop in the country, are a great advantage for our clients when thinking about the after sales service, spare parts, supplies and personalized attention. Delivery times, technical support and input supply is greatly reduced on options imported printers today are available in our market. Finally, being a company Argentina, we will make all our releases, product testing, lectures and trainings, first in this market.
I'm not sure what technology tehy are describing in "control of color" part ... probably just a single tone of color in the resin ..

Mostfun Sail 3d printer from China

More 3d printers from China which were crowdfounded. Mostfun Sail was funded trough DemoHour portal. Pro version comes with WiFi and bigger build volume.

Technical Specifications:
  • Build size: 13 x 13 x 12 cm
  • Layer thickness: 100 micron
  • Filament diameter: 1.75 mm
  • Nozzle diameter: 0.4 mm
  • Print material : PLA
  • Print Size: 26 x 26 x 30 cm
  • Printer weight: 8 kg
  • Price: 417 euros (3580 RMB). The prices for the Pro model are 500 Euros (4299 RMB) or 557 € (4780 RMB).

Mar 21, 2014

AOD Artist Android powered 3d printer from China

This printer from Chine is one of those machines where there is only a few CG images and few specifications. In some articles it is mentioned that the company successfully crowd-founded it on some Asian sites.
Its main distinguishing features are Android powered  touch screen control unit and ability to store files in "AOD Smartcloud". Now, it would be interesting to see who would trust this cloud service to store some industrial prototypes ... future will tell if this machine will have success ...

Technical Specifications:
  • Build size: 20 x 20 x 20 cm
  • Print Size: 600 x 500 x 470 cm
  • Layer thickness: 0.1 mm
  • Filament diameter: 0.3, 0.4 and 0.5 mm
  • Print material : ABS and PLA filament
  • Priced at 28,800 RMB (3,341 Euro) in Chinese online shop

EVOlizer prosumer 3d printer by Evo Tech from Austria and their fire resistant filament

EVOlizer 3d printer from Austria is aimed at more professional market of architectural and product design. Only limited information is available ...

Tech specs:
  • Print Size (W x D x H): 270 x 210 x 210 mm
  • Minimum film thickness: 0.20 mm
  • Position accuracy: 0.05 mm
  • Model Material: ABS, PLA (recommended)
  • 15 Material Colors: white, black, blue, green, gray, orange, pink, red, sky blue, yellow, green yasmin, glow in dark, golden, silver, natural
  • Software: automatic alignment model, automatic creation of the Support Structure, automatic creation of the print file (slicing)
  • File formats: STL
  • System Compatibility: Windows / MacOS / Linux
  • Data Transfer: USB
  • Printer Dimensions (W x D x H): 540 x 720 x 710 mm
  • Weight: 59 kg
  • Average power consumption: 200 watts
  • Connection data: 230 VAC, 50/60 Hz, 4A
  • Warranty: 2 years warranty except wear parts
Company homepage:

Here is the video of printer in action (German language):

EvoTech now offers fire and flame resistant filament named FR-filament:

Currently there are no third party reviews or tests.

ASTERID 1100 3d printer by Plastic Scribbler

From company page:
The Asterid 1100 takes our base model and adds a Smart controller LCD graphics display with SD card reader, it replaces the power resistor in the hot end with a heater cartridge and it adds a PCB heated bed. The Smart controller LCD display allows the user to control and print from the 3D printer without the need of a computer tethered to the printer (a computer is still needed to slice models into G-code). The heater cartridge heats up faster than the power resistor and in turn will regain heat lost more quickly. A heated bed helps reduce ABS warpage by keeping the model at or above the heat deflection temperature. A heated bed also assists in adhering the part to the build surface. In addition to the Smart controller, the heater cartridge and heated bed the Asterid 1100 also upgrades the print surface to borosilicate glass which provides a ultra flat build surface that has a very low thermal expansion coefficient. A flat print surface helps achieve world class results from a 3D printer due to the fact that the first layer is completely uniform. With three resolution settings (extra fine, fine and course) and a whopping 512 cubic inch build volume, our Asterid 1100 desktop 3D printer is the simplest, fastest and most cost effective tool available for making quality 3D models.

Standard Features:
• Build volume 8" x 8" x 8"
• LCD Smart Controller with SD card reader for computer-free 3D printer control
• Heater Cartridge hot end heating element
• Uses 1.75mm plastic filament (ABS or PLA recommended)
• Strong extruded aluminum and wood frame with built-in filament spool holder
• Fully assembled & tested
• Heated Borosilicate glass build surface
• 240W power supply
• Open design (no outer cover or door provided)
• Z-axis ACME lead screws standard
• X and Y-axis utilize GT2 timing belts for high efficiency and low backlash

• Open-source software supplied on CD and downloadable from our website, please see our how-to guides
All printers will ship with a software CD, but the software is also available to download via your internet connection.
• Fully configured Pronterface and Slic3r software which uses stereolithography (.STL) files as input
• We supply software for Windows computers, but open source software for the Mac & Linux is available
What's in the box?
• Plastic Scribbler Asterid Desktop 3D Printer, fully assembled & tested
• Software CD
• USB Cable
Tech Specs:
• Fused Filament Fabrication (FFF)
• Ramps v1.4 Motherboard
• Physical dimensions: 18.625" x 18.625" x 18.625" (L x W x H)
• Extruder moves in the vertical plane (Z-X), build platform moves in the horizonal plane (X-Y)
• Spring loaded geared extruder with .4mm nozzle
• ABS filament recommended, but extruding PLA or other thermoplastics is possible.
• Power supply works on both US voltage (115VAC) or European voltage (230VAC).
• .4mm nozzle diameter (replaceable nozzle)
• All metal hot-end
• Epocs NTC 100k 1% thermistor used on both hotend and HBP
Layer Height:
• 3 layer height settings: .3mm, .2mm, .1mm (other layer heights possible)
• Full 30 day money back guarantee. If you're unhappy with the purchase of your 3D printer for whatever reason, just return it for a full refund. All you pay is return shipping.

It is priced at USD 689

Mar 20, 2014

Bioprinting presentation at MRRF 2014

Jordan Miller, Andy Ta, and Steve Kelly talk 3D bioprinting at the 2014 Midwest RepRap Festival.

Take a look at other stories about bioprinting:

Source: Hackaday

3d sculpting and printer control with Meta virtual reality glasses

Virtual reality technology is advancing. There are many glasses with augmented / virtual reality  interfaces. here is demonstration of Meta glasses that enables user to sculpt 3d model with hand gestures and then control 3d printer via virtual interface.

This is how Elon Musk is doing it:

Company page:

ZeroUI 3d sculpting software:

Update (26.5.2014.):

Here is another similar project but with less interaction based on CastAR optics:

Mar 19, 2014

Delta Twister ultra low cost DIY 3d printer with no CNC or printed parts

Even more low cost wood frame Deltas on Instructables. This one is from user Braden Petno and can me made for less the 400 dollars. There are no 3d printed or CNC produced parts, so it is an advantage if you don't have access to them.

Detailed build instructions:

Here is QuadStrap, another low cost 3d printer with no printed plastic parts which also has extensive construction manual:

Kiwi Remix Delta 3d printer

Another day, another printer. Kiwi Remix even has a wooden frame ... I like it!

From Thingiverse description
3d Reprap Delta printer with a wooden frame, the frame can be produced on a CNC machine or laser cutter.
Technical specifications:
  • Uses 3mm threaded rod cut to size for the platform bolts, carriage bots and connector rods. 
  • 8mm smooth rod and LM8UU bearings, 3 per carriage for added stability. 
  • Z min probe for auto bed leveling 
  • Z min probe is activated by a servo mounted on the frame 
  • LCD control panel 
  • Tidy and compact 
  • Small foot print 
  • Heated bed to enable both ABS and PLA 
  • 170 x 170 x 170 (mm) print volume 
  • 3mm filament 
  • Handy reel holder

All the files can be found at: 

RepStrap CoreXZ vertical h-bot prototype 3d printer by Nicholas Seward

Here is vertical H-bot proof of concept 3d printer by Nicholas Seward. He will release the files so you will be able to build your own.

Here are some other H-Bot movement 3d printers:


Here is CoreXZ walk-around:

Mar 18, 2014

Cura 14.03 with new Ultimaker 2 firmware released!

Ultimaker software just released Cura 14.03. Here is overview from Ultimaker blog:
Setting storage
One of the major changes is that the settings are now stored per machine instead of global for all machines. This means that if you have multiple printers you can keep the optimal settings for each printer with that printer.
TweakAtZ plugin
The “TweakAtZ” plugin has been added by default. This plugin has been made by Steve Morlock, Ricardo Gomez and Stefan Heule. Big thank you to them! Thanks to their community effort you can now change various settings like temperature and speed at certain heights. Giving more control on how your print is made.
New Ultimaker 2 firmware
For the Ultimaker2 a new firmware is supplied with Cura 14.03. This firmware adds a pause option in the tune menu. So you can pause a print on the Ultimaker2. It also contains fixes for a few small bugs that where reported.
Additional changes in Cura
  • Improved the LayerView rendering speed
  • LayerView now updates during slicing, so you can see the result before it is ready to print spotting problems early on
  • Selectable USB printing dialogs, from plugins, with default Basic and PronterfaceUI
  • Selection between new grid or line based support material
  • Added optional separate speeds for outer and inner shells
  • Added Z-Hop feature in the expert settings
  • Added setting to configure support material angle from the expert settings, giving better control on where support material is generated
  • Various small bugfixes improving print quality
Full features Ultimaker 2 firmware update
  • Added pause function during printing
  • Added material selection when changing material
  • Fixed the move material maintenance function
  • Fixed the led brightness on startup
  • Retraction settings are saved and restored on reset

Mar 17, 2014

The new Afinia H480 3d printer

Afinia h480 is well known 3d printer. Now there is a new model.

Technical specifications
  • Auto-Leveling Platform Calibration and Nozzle Height Detection
  • Build Platform: W:140 x D:140 x H:135mm
  • Supports: Auto-generated by software
  • Layer Thickness: 0.15 - 0.40mm
  • Operating System: Windows XP/Vista/7/8/8.1, Mac OS 10.6 and above
  • Printer Size: W:245 x D:260 x H:350mm
  • Printer Weight: 11 lbs
  • Warranty: 1 year (parts and labor)
  • priced at $1,599

3D printing with locally dug clay, builder’s silicon, wax, sugar frosting, sugar sticks, sugar fondant and wood paste

Jonathan Keep held a workshop at Burg-Halle University in Halle near Leipzig, Germany. He demonstrated 3D printing with locally dug clay, builder’s silicon, wax, sugar frosting, sugar sticks, sugar fondant and wood paste.

Keep is well known for his work with Delta printers and special extruders on clay and other materials such as chocolate.

More at:

3d printing with wood paste

Mar 16, 2014

Comparison of Slic3r 0.9.8 vs. KISSlicer by Eugene B

Tested are some older versions of slicers, but it is still interesting and educational.


New upgraded Rostock Max v2 kit by SeeMeCNC

From company page:
The NEW Rostock MAX v2 - The largest build envelope of any printer under $1,000! With everything you'll need to build a complete machine - every nut, bolt, wire and fastener – this is a true builder’s kit! The massive Onyx heated bed and super flat borosilicate glass build plate allow you to print more than just PLA.
From ABS to Taulman Nylon, you’re limited only by your creativity when it comes to printing.
From our incredibly simple and efficient EZStruder, to our SD Card-ready firmware, the MAX is simply the best value you’ll find anywhere. For those who also like to mod and upgrade, there is plenty of room for your creativity too. Our online community is second-to-none, and our loyal users LOVE to show off all the modifications they have made to their machines, share printing tips and tricks, and help troubleshoot if needed.

What’s new with the v2?
  • Re-designed hot-end platform and Delta arms and mounts for worry free assembly. No Sanding Required!
  • Lower parts count means faster assembly time
  • Top mounted spool holder shortens length between EZStruder and spool, and minimizes machine footprint.
  • New Base enclosures protect your electronics from dirt/dust, and give your kit a clean, attractive appearance
  • New Top design provides more rigidity for better prints, and easier assembly and calibration
These improvements are added to the already impressive list of standard components and features:
  • Over 1300 cubic inches of build volume (11" Diameter by over 14 1/2" height)
  • US Made - high quality, laser cut, injection molded, and CNC machined parts. All done by us, in house!
  • Our EZStruder and Hot-End set up for 1.75mm filament
  • High torque NEMA 17 stepper motors
  • Stock .5mm nozzle for easy printing. Easy to change to other available sizes
  • 450w ATX style power supply for safety and easy upgrades/replacements
  • RAMBo by UltiMachine electronics, the best available 3D printer controller
  • Positioning accuracy of .05mm
  • Speed up to 300mm/s in all motion, not just X/Y moves
  • Tinker-friendly electronics and hardware. Many extra places to add your own mods to both
  • Filament spool holder incorporated into the machine (for 1lb or 1kg spools only)
  • Onyx Heated Bed
  • Borosilicate Glass build plate for safety and precision
Here's what you will need to complete the assembly:
  • Appx. 20hrs. to assemble (time varies based on skill and any mods made during the assembly)
  • Standard Allen wrench set
  • Metric Allen Wrench Set
  • Needle nose and/or small pliers
  • Wire crimping tool or solder and solder iron
  • Standard and Phillips Screwdrivers
  • High Temp RTV silicone for retaining heating resistors/thermistor in hot-end, or High Temp expoxy

It is priced at USD 999

Reddit thread about it:

Sneakerbots shoes printed in highly flexible Filaflex by Recreus

They look good, but probably wont' survive much walking  ...

From project page:
The new sneakers by Recreus printed in Filaflex 1.75mm.
During months we have investigated and work hard to develop the 1.75 mm filaflex format. Sneakerbots are the actual proof that shows filaflex works becoming in the most elastic filament on the market.
The sneakerbots by Ignacio Garcia are inspired by 80s films such us back to the future, starwars, short circuit etc.
Should be noted that the new design is more comfortables than first one. You can vary the softness changing the percentage of infill. The tongue makes that laces don´t hurt foot.
Hope you print them, wear them and be the coolest maker in your city!!

You can download the files for the shoes here:

How to set up Repetier Host and Sli3er for first use on Kossel (or many other 3d printers)

Great guide by electronhacks where he explains how to setup Repetier-Host and Slic3r for first print on Kossel 3d printer. It deals with many uncertainties that beginners have when setting up the machine first time. It is great learning resource for other similar 3d printer setups.

3DPrintMi minimalist open frame style RepRap 3d printer

3DPrintMi combines the minimalistic, open frame style of the Printrbot/Wallace with the fixed Y Gantry system of the Mendel. The printed parts are designed to be produced rapidly, efficiently and assembled easily. A primary goal for this printer was to incorporate the maximum number of printed parts, thus enabling self replication. Built from the ground up, this Reprap requires very little tooling and does not need specially made parts (e.g. lasercut pieces) for it to function. It is also Gada Prize Bronze Medalist.

Technical specifications:
  • Printed Parts: 31-35
  • Non-Printed Parts: 279 - 281
  • Total Cost: $340 - $450
  • Material Cost:
  • Printed Parts: ?
  • Vitamins: $105 - $130
  • Electronics: $240 - $315
  • Printer Dimensions: 38cm x 43cm x 41cm (15" x 17" x 16")
  • Build Area: 152mm x 152mm x 200mm (6" x 6" x 8") or 200mm x 200x x 200mm (8" x 8" x 8")
  • Precision: ???
  • Accuracy: 0.15mm (current layer height tested)
  • Speed: 60mm/s perimeter, 120mm/s infill
  • Units of Measurement: Metric
  • In compliance with Vertical X Axis Standard, compatible with Mendel style X gantry
  • Fully printed Y carriage platform
  • Extruder mount compatible with Wade Extruder/Bowden or Direct Drive(QU-BD MBE)
  • Adjustable frame allows increased build volume (Working)
  • Fully parametric
  • 56% Plastic, 44% vitamins (Volume)
  • Estimated assembly time = 2 - 3 hours (excludes electronic/board assembly)
  • Estimated total print time of a printed set = 28+ hours
  • Estimated total plastic usage of a printed set = 370 cc @ 60% infill
  • Power requirement = 80W to 100W (Hotend @ 240C, Hotbed @ 95C)

Very detailed building guide:

All the files, BOms etc.:

Project homepage:

Mar 15, 2014

3d printable cowling for enclosures with radiant heat source

Thingiverse user TimeFramed made a heater cowling for his enclosure. It is a sort of small fan driven air tunnel heat dissipation contraption :-) ... It improves heat distribution and makes it even trough the chamber.


From project description by TimeFramed:
I've had real trouble with thin walls splitting apart, particularly on larger prints, (a. because they're larger, b. because the take longer to print -- i.e., overnight, and my printer is in an unheated shed).
Figuring the ambient temperature drop at night was the main cause, I decided to get an enclosure heater. And an inexpensive temperature controller. After installing and testing the heater, I found that using as just a radiant heat source was heating the enclosure surfaces near the element too much, so added a low-speed AC cooling fan (on the same relay, so it comes on with the heater. That solved the too-hot-in-one-spot issue, but tended to blow warm air onto one side of the print.
So, I made a cowling that funnels the warm air to the bottom of the enclosure, and to the front and back; to more evenly distribute the air.
The "stripes" you see on my 'top half' part are pieces from the first, horribly split, part glued onto the second print (that faired much better having been printed while using what survived from the first print).
The bottom half printed even better, while using the top half, and raising the extrusion temperature by 4 degrees.
Now I keep the ambient temperature of the enclosure at a toasty 38C.