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Printrbot Metal Simple 3D Printer Kit, Black, PLA Filament, 1.75mm Ubis Hot End, 6" x 6" x 6" Build Volume

4.3 out of 5 stars 78 customer reviews
| 18 answered questions

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Specifications for this item
Brand Name Printrbot
Part Number Printrbot Simple Kit
Number of Items 1
Specification Met certified frustration-free
UNSPSC Code 23261507

This item’s packaging will indicate what is inside and cannot be hidden.
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Product Features

  • Fabricates parts up to 6 x 6 x 6 inches (H x W x D) in size or 216 cubic inches in volume
  • Prints layers up to a maximum resolution of 100 microns
  • Fabricates parts using 1.75 mm PLA filament (sold separately)
  • Automatic leveling probe helps level the print bed
  • Cooling fan speeds up solidification of the extruded filament

Product Description

The Printrbot Metal Simple 3D fused-filament-fabrication printer kit has a black powder-coated all-metal construction with open platform for fabricating parts up to 6 x 6 x 6 inches (H x W x D) using 1.75-mm PLA thermoplastic filament (sold separately). The printer, which has all components required for assembly, has a steel and aluminum frame for durability and a black powder-coated finish to protect against wear. The printer head moves on the Y (backward and forward) and Z (up and down) axes, while the print bed moves on the x (left to right) axis. The steel and aluminum print bed is warp resistant and includes an auto-leveling probe that works with the user-chosen computer software to provide a level print surface. The hot end has a maximum resolution of 100 microns and includes a fan to help solidify the molten filament as it is extruded onto the print bed. The printer uses open source software and connects to the computer using the included mini-USB cable. Using an SD card (sold separately), the printer can be disconnected from the computer after initialization for untethered printing during long print jobs.

The guide rails have a 12-mm diameter for stability and have linear bearings for smooth vertical movement of the print head. The GT2 belt and aluminum pulley system facilitates precise movement of the print head. The NEMA 17 stepper motor meets the National Electrical Manufacturers Association (NEMA) standard ICS 16-2001. The printer includes a sample spool of PLA (polylactic acid) filament.

Compatible filament materialPLA
Filament size1.75 mm
Maximum hot-end temperature270 degrees C (518 degrees F)
Maximum resolution100 microns
Maximum build volume216 cubic inches
Maximum build dimensions6 x 6 x 6 inches (H x W x D)*
Heated or ambient bedAmbient
ConnectionMicro-USB (included), SD card (sold separately)
Untethered printingYes. Requires SD card and computer hookup to start print job before untethering.
Supported operating system(s)Windows, Mac, Linux
SoftwareOpen Source. Repetier-host and Slic3r recommended.
Input formatStl, G-code
Nozzle diameter0.4 mm
Power requirements12V (60 watt) laptop power supply
Overall assembled dimensions15 x 11 x 12.5 inches (H x W x D)*
Weight12 lb.

*H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Fused filament fabrication printers build prototypes and parts directly from computer-aided-design (CAD) data sources by stacking layers upon layers of molten material. The print material is provided in filament or wire form and is fed through an extruder within the print head, similar to how ink is used in a standard printer. A printer with a single extruder can print using one filament at a time; a printer with dual extruders can print with two different materials or colors at the same time. The thickness of the printed layers can be customized for each print, but the thinnest layer that a printer can lay is called its maximum resolution. Choosing to print using very thin layers will create parts with more detail, but will typically take longer to print. To lay the material in the correct way, the print head and bed typically move in a combination of X-axis (left and right), Y-axis (forward and backward), and Z-axis (up and down) movement.

Printrbot manufactures desktop 3D printers and accessories. The company is headquartered in Lincoln, CA.

What's in the Box?

  • Printrbot Metal Simple 3D printer (unassembled)
  • 12V (60 watt) 5 amp laptop power supply
  • Power cord (3-ft. length)
  • Micro-USB cable (34-in. length)
  • Sample spool of 1.75-mm PLA plastic filament
  • (2) wood wrenches
  • Auto-leveling spacer

Product Details

  • Shipping Weight: 14.6 pounds
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Item model number: METAL Printrbot Simple KIT
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (78 customer reviews)
  • Amazon Best Sellers Rank: #85,137 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
This is a product I love to hate. The printer is well made, compact, hit's the right price point, isn't made of plywood, and is relatively simple to assemble. The downsides are numerous design flaws that make me, as a engineer, sigh.
The problems I ran into were/are:
The controller board came with the wrong version of firmware.
The controller board wouldn't communicate through USB until it was re-flashed.
There was no user's manual or assembly instructions (there is now a picture guide that's OK).
Two of the axis were reversed when assembled following the picture guide.
One of the axis needed to be reversed yet again after upgrading the firmware.
The printer produced puddles of plastic until I put about 4 hours of calibration effort into it.
The reset button is buried up inside the chassis where it is inaccessible (and you will need to use if frequently).
The microSD card connector is a Push-Pull for some inexplicable reason, meaning you need a pair of needle-nose pliers to get the card back out.
The bed-leveling doesn't work reliably with any version of the firmware.
There are only end-stops on one side of the travel, so the machine has run up against it's limits and ground away at the belt numerous times.
You can't print much of anything without a heated print bed.
The heaters available from Printrbot require quite a bit of modification to the machine to install.
The bed twists almost .125" when heated to 70C.
There are no feet on this printer and it is quite capable of walking off the table (or scaring the table top).
There is no power switch. You will have to pull the cord every time you need to power it off or start a print from the microSD card.
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I've been using this printer for 2 weeks now and am putting it through it's paces with some 30 and 60 hour prints. To build it I used the help of some German/English youtube video's. Following those, building the unit was no problem. It arrived with a missing piece that printerbot mailed to me right away. That said, assembly required a couple of trips to the local hardware store, because a couple of washers and nuts were missing also. Obviously they are not worth contacting printerbot for, but it means printerbot could use a bit better QC in that regard. You will also need some lubricant for the z axis, as the unit is far too stiff for the stepper motor to handle without serious lubrication. I went with the video instructions and set it up with Cura which was rather painless. The first prints looked a bit rough, but after some tinkering and changing the nozzle to a 0.25 size the prints turned quite impressive. There is some criticism I have to agree with: The unit is capable of walking off your table and it did scratch my desk. A bottom plate to protect the electronics and to keep the thing from damaging furniture would be a good addition! Many people online suggest to print a funnel for the fan. I tried that, and didn't see any improvement, so the piece came off. An on/off switch with a power LED would be nice indeed, because it is possible to turn off Cura and have the extruder maintain printing temperature while thinking the unit is off. It's therefore a good idea to pull the plug when it's not in use. Would I purchase this printer again? Yes!
Would I buy the kit again? No, I'd rather spend $60 more and get a ready made one. On the other hand building it will give you greater insight, and understanding of the unit, which will come in handy when it needs a repair. Hope this helps your decision making!
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Verified Purchase
I'm thrilled with the Printrbot Simple Metal 3D printer kit. It's my first 3D printer so I wasn't sure what I should expect, but the Printrbot Metal has exceeded my expectations. The kit wasn't difficult to build, but it took about four or five hours to build and calibrate for the first print. On Printrbot's web site, there are instructions for assembling the printer, and they also include a link to a series of eight YouTube videos by an English speaking German guy who assembles the Printrbot Metal. His videos are concise, and broken into logical steps. Between the two sources, I was able to figure out all the steps to build the printer with minimal confusion and frustration. Sometimes Printrbot's instructions and pictures were a little cryptic, but the videos filled in the missing information. When the video showed the printer with an earlier version of the electronics controller board, Printrbot's instructions showed the correct connections for the board I received. Having two sources of assembly information worked well for me.

Most of the screws in the kit use Allen headed metric screws, and the needed wrenches are included in the kit. Printrbot also includes two wooden wrenches for the nuts on the 'Z' probe, but only one fit, and I used an adjustable wrench instead. The only other tools you'll need are a couple of Phillips screwdrivers, wire cutters for trimming tie wraps, an adjustable wrench or two if the wooden wrenches don't fit, and a small rubber mallet or hammer. You'll also need a few drops of thread lock liguid (Loctite Blue 242) for some set screws. My kit had all the required parts, but Printrbot also included a small bag of spare screws and a washer just in case something is missing or you lose a screw.
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