Follow these instructions to build an efficient and reliable all metal structure 3D Printer, courtesy of Danny Lu over at instructables. Great quality and up to 400 mm/s print speed (very fast). Built with heated bed, hybrid bowden suspended extruder, and counterweight (tested printing 21 hours straight with no motors hot). Does not require many tools to be created and if tuned well enough can last you very long.
Build Area: 230mm (9 in) diameter, 230mm height (extend towers for higher if needed)
FDM 3D Printer:
Parts can be sourced from these places, but if you might find them cheaper locally.
Any online metal store
Cut the aluminum extrusions to specified lengths:
Make sure the 4 extrusions are spread evenly with these lengths
Use the template to create aluminum parts:
If you print with no boarders the template can be used as exact measurements where you can cut and glue stick the template on the aluminum plate and work with that. I used GIMP to print without boarders. You should make sets of 3 for every part except for the triangle and hexagon which only 1. Use template to create the parts.
Then use the metal bender to bend to specified degrees.
Drill a 3/8 in hole in the middle of the aluminum triangle (10mm)
Cut the 1/4in plywood to size:
you should be able to draw a equallateral triangle from your heated bed using the straight edges, and cut it out. Then cut the corners out a decent amount ~60mm (could be flush with extrusions(harder) or not). Then put the heat bed onto the triangle plywood and mark the screw holes and drill them. Then drill a hole of size >=1/4in in the center of the triangle (doesn’t matter where exactly, its where heated bed wires go)
Make the 500g counter balance
Print all the 3D printed parts (if you don’t have 3D printer upload and get them here http://www.shapeways.com/create?li=nav or other places)
Template and STL Files found at
Click Download ZIP in bottom right corner
Click on pictures for more detail high res pictures.
Screws are M3 hex when not specified.
The mini V Gantry Plate is basted on this OpenBuilds assembly.
Follow this to assemble the slider for the 3D printer
Then attach the large 3D print that goes on these sliders with M5 screws
Assemble following the picture with 20mm screws on rods and keep the belt connector loose
keep the 3 slides on the extrusion
Assemble using the picture. All 8mm screws to screw into the extrusion with T-nuts except for endstop which is 10mm.
You could organize the wire inside the extrusions.
use the Weight_attachment part and screw a 8mm screw into it and on the back side into the extrusion with either T-nut or normal nut with washer keep loose. Your T-nut might fall off depending on the type of it.
Auto leveling probe:
Stick the thermistor onto the side of heated bed with tape or thermal compound
Wire RAMPS 1.4 board using the diagrams using the first picture.
Connect these using second picture:
Wire the power supply shown in picture also
You can use their tool to configure your printer and download firmwarehttp://www.repetier.com/firmware/v092/
The pictures on git hub(inside the files folder you downloaded) shows my settings on the configuration, yours might be different.
There’s a lot of tutorials and forums online if you get stuck.
Great tutorial for Z-probing: http://www.repetier.com/documentation/repetier-fir…
Tags: 3D printing
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