We are thrilled to offer the One Up and Two Up for the Holidays as an easy to assemble kit. These units were ‘shelved’ for quite some time waiting to release now. They are very simple, reliable and can produce incredible results for their price. While they may be outclassed by our RPM and Revolution 3D printers in speed and incremental print quality, the One Up and Two Up rival the speeds and print quality of most of the ‘high end’ consumer level 3D printers on the market.
What’s in the Kit? Everything that you need to begin 3D printing is included in the kit, including a small amount of PLA filament to get you going. The kits include:
(4) Super Torquey NEMA 17 Stepper Motors
(1) Anubis Hot End for 1.75mm Filament w/ Thermistor
(1) Laser Cut Black Melamine Coated MDF Frame
(1) Precision ACME Screw and Nut for the Z-Axis
(6) LM8LUU Precision Linear Bearings w/ 6 8mm Smooth Rods
(2) Aluminum HTD Pulleys w/ 3 Ball Bearings as Idlers
(1) Set of Laser Cut Acrylic Idler Plates
(1) 40mm Fan w/ Mount to Cool Off Your Prints
(1) Laser Cut Acrylic Build Plate
(1) Set of Printrboard Electronics with Integrated Stepper Drivers
(1) 60w Power Supply
(1) Bag extra wiring, crimps, electrical connectors etc.
(1) Bag of required hardware (nuts, bolts, screws etc.)
How did the OneUp and TwoUp come about? Through the development of our all metal, precision machined 3D printers we had always talked about a low cost, entry level unit to allow virtually anyone to get into the exciting field of 3D printing. We had all these amazing quality components for linear motion and precise movement ‘laying around’ from our other printers so what we really needed was a low cost frame. Really we repurposed the components that we were already using into a no frills 3D printer. We chose Melamine coated MDF as a dimensionally stable, rigid, low cost alternative to our all metal printers AND it could be cut on our huge CNC laser. We stripped off all the extra bits that we could to reduce the cost as much as possible without sacrificing quality of prints; you can acheive some really world class prints at 60mm/s. We integrated the stepper drivers into the electronics board and we machined up a low cost hot end using proven concepts for printing strictly in PLA. We wanted to create a world class printer with the only sacrifice relative to much more costly 3D printers being the build area at a price that anyone can afford. It’s cheaper than an X-Box!
The entire Melamine coated MDF frame can be cut in less than 10 minutes on our 150w CO2 laser. Due to the cutting envelope of the laser we can nest 30 of the OneUp’s frames on one 48?x96? panel, click cut and let it go. This allows huge throughput with minimal human interaction. All the frame pieces were drawn up in Solidworks and we will be releasing a PDF, EPS and DXF version so replacement, mods and copies can be produced on anyone’s laser…isn’t Open Source great!?
The Arduino based electronics that we are using are referenced off the Open Source Printrboard electronics. They include 4 integrated Allegro 4983 stepper drivers. There are two MOSFETS onboard as well that power the extruder and at a later time a heated bed for printing in materials other than PLA. There is an SD card slot to allow computer free printing. The printer is powered by a universal 60w laptop power supply which provides the needed power for the extruder and stepper motors.
OneUp Arduino Powered Electronics based on Printrboard
The extruder is called the Anubis and is based off an industry standard PEEK barrel with a groove mount with a PTFE liner which is used as a lubricious insulator. It is fed into a machined brass barrel that is heated with a machined aluminum heater core that houses the heating element and thermistor for temperature control. The extruded filament exits through a machined brass nozzle with a .40mm orifice. The extruder is designed for 1.75mm PLA filament which gives off a sweet smell and is non-toxic and biodegradeable.
QU-BD One Up / Two Up Specs:
Minimum Layer Height: 50 Microns (Lower is Better)
Frame Material: Black Melamine MDF
Max Travel: Approximately 100x100x125mm / 175x175x125mm
Maximum Travel Speed: 150mm/s
Maximum Print Speed: 100mm/s
Bed Material: Acrylic
Heated Bed: No, electronics support it so it can be added later
Linear Motion Type: X/Y Belts and Linear Bearings | Z Precision ACME Screws / Linear Bearings
X-Motor: NEMA 17 Motors w/ Up To 16x Microstepping
Y-Motor: NEMA 17 Motors w/ Up To 16x Microstepping
Z-Motor: NEMA 17 Motors w/ Up To 16x Microstepping
Electronics: Printrboard Style Electronics
Extruder: anUBIS w/ PTFE Liner for Reliable Printing
Filament: 1.75mm PLA Only (for now)
The only difference between the OneUp and TwoUp is that the smooth rods on the X and Y axis are swapped for ones that are 75mm longer on the TwoUp, they are identical in every other way.