Ultimetal - Large 3D Printer by maxdesign1990

Last crawled date: 3 years ago

Build Albumhttps://goo.gl/photos/dA3D3UkkQjNfr7hH6
Ultimetal
(V2 coming soon with a range of improvements)
A Printer with a large print volume, rigid metal lasercut chassis,fast motion platform and dual extruder's.
Whats Available:
Full Model .STEP
Lasercut .dxf files
Prototype BOM (Bom used to build prototype use only for reference make your own
from parts list since pricing and parts availability depends on your
region)
Parts and Quantity List
STL Files
More to come such as schematics, wiring diagrams and instructions.
Quick Specifications:
Print Volume: 280mm x 290mm x 320mm (x,y,z)
Print Speed: Up to 200mm/s (Dependent on the User)
Hotend temp: Max <300 Celsius
Heatbed temp 100 Celsius (Possible Higher - Not yet tested)
XY Precision: 10 Micron
Minimum Layer Height: 50 Microns
Leadscrew Precision: 100 Micron deviation per 300mm
Hotend: E3D Chimera
Stepper Motor: Nema 17 1705HS200A 2-AMP 1.8-Step 0.8Nm
(Any Nema 17 motor mounting compatible)
Controller Board: Rumba Board
(Mounting possible for any controller with a suitable 3d printed mount-
An array of mounting holes are available on the chassis)
Extruders: Easy to use extruders with easy access to the hobbedgear
Hobbed Gear: Mk8
Belt: GT2 6mm Wide
Chassis: Lasercut - CR4 Steel Primed and Spray Coated with Acrylic Matte Black Paint
(Mounting hole array at back of chassis and electronics mounting plate for
easy mounting of components of your choice)
Clear Panels: Clear Laser-cut Acrylic (Future Upgrade)
Heatbed: 3mm Borosilicate 300mm x 300mm with 12v Silicon 300w Heatbed
( Standard Mounting holes available for 200x200mm,200x300mm,300x300mm
sized pcd heatbeds)
Heatbed Relay: Celduc somo-40100 Solid State Relay (60V 40AMP MAX DC-DC)
Heatbed Wiring: 12 Gauge Copper Wire
Power Supply: Corsair CX750 (Any standard ATX format power supply can be mounted
to the chassis)
Display Controller: Full Graphic Smart Controller
Controller Firmware: Marlin (Ultimetal modified marlin available on this page to download)
Pulley: 32 Tooth
(More specification details will be added soon)
This printer was developed as a project for my college to build a printer for printing
large models for a research institute. They wanted the capability to use multi materials,
hence the use of a E3D chimera.
A Cartesian XYZ motion similar to the ultimaker 3d printer is used. This lowers the mass of the moving xy gantry. A bowden system is used to lower the mass further. But extra calibration is required for the bowden system. Lower mass also means that corner definition is improved and faster accelerations and deceleration's are improved.
The steel chassis makes this machine incredible rigid and heavy. If your building it you could lasercut it in aluminium to lower the weight. Heavy is a good thing since it helps lower the resonance and vibration of the machine. The lasercut plates slot into each other and then bolted together.
I designed the extruder to be easy to access the filament drive gear. The end of the stepper shaft is supported at the end to decrease the deflection. Pneumatic coupler's are on both end of the extruder to allows ptfe tubing to and from the extruder. The ptfe tube is
in close proximity to the drive gear. Making it easier to print in flexible filaments although
i have not tested this yet.
Any controller can be mounted to the chassis provided you design a mounting plate for the controller. The electronic plate has an array of holes 40mm distance apart. If you feel
that any other controller suits your need better no problem. But be sure that is can support 2x Extruder Stepper + 2 Z Stepper + 1 X Stepper + 1 Y Stepper = 6 Steppers.
I have designed mounting and fan system for the rumba controller.
The full graphic display is used for the display. There is no option to change this unless the front lasercut plate is redesigned which is possible. There is a slot at the side for easy access to use an SD card.
Lasercut clear plates .dxf files are available. I haven't added this feature to the printer.
A magnetic latching handle has been designed for the front panel. This feature will
only work for ferrous metals. The printer was originally designed with no clear panels.
So no mounting holes for them on the chassis for now.
A solidstate relay is used to switch the headbed power. I was originally going to use a circuit i have developed myself. But i decided that it was worth the extra cost of getting
a reliable of the shelf component.
The heatbed heating unit is a silicon heat matt stuck to the 3mm Thich Borosilicate glass
sheet. The silicon mat was applied to the glass using a double sided thermal tape. 12 Gauge copper speaker wire was used to supply the high current.