My milled stepper board. Laser etched the silkscreen. The black labels are washed off too easily though.
I milled this stepper board. On the other side I laser etched the silkscreen.
You can use screw terminals to connect the stepper motor, or a 4 PIN header. The shunt closes together the Auto low current to ground, to activate this feature.
A board that I made to use the SMC-11 that has microstepping. It needs 4700uF capacitance close to the module. I wanted it to be fully compatible with RepRap Stepper board 1.2 that it replaces.
These are two bowden extruder clips that I designed. http://www.thingiverse.com/thing:996
A slippery teflon tube is used as a guide for the plastic filament that goes into the printhead.
An adapter board for the SMC-11 microstepping controllers.
Experimenting at Nophead's place in Manchester: Testing the adhesion of ABS to PLA. It could take quite a few Newtons of force.
PLA and ABS weld together very well.
PLA (glassy) printed on top of ABS (beige).
Testing PLA/ABS adhesion
Big sfernice 6 Ohm resistor. I fitted it into a big copper tube that I insulated in glassfiber wool. The PTFE part friction fits into that.
Test with thermocouple: 90 to 100 degree C hot air coming out of it.
The heater coil's terminals were oxidized. I managed to replace it without ruining another good extruder.
This is a simple test shape I designed that has a lot of strings attached unless countermeasures are taken. This is for testing my anti-string algorithms.
Arduino Sanguino
Bits from Bytes integrated control system
Above: BitsFromBytes fully integrated control system Middle: Arduino Below: Sanguino (by RepRapper Zach Smith)
My thing: http://www.thingiverse.com/thing:1399 A parametric model (or script) that generates this type of parts
My 90' angle bracket http://www.thingiverse.com/thing:1399
My alternative that uses a skate bearing (parametric model accepts any bearing size). http://www.thingiverse.com/thing:1404
http://www.thingiverse.com/thing:1404 The pulley is also from my parametric script.
http://www.thingiverse.com/thing:1404
My bearing bracket http://www.thingiverse.com/thing:1404
Printed my BfB spindle holder http://www.thingiverse.com/thing:1420
My BfB spindle holder http://www.thingiverse.com/thing:1420
Part that goes into the inner rings at the sides of the spindle. BfB spindle holder http://www.thingiverse.com/thing:1420
My BfB spindle holder http://www.thingiverse.com/thing:1420 This is how the axle can be made. Drill a hole to friction fit the metal axle in part B. Part A should freely rotate.
Printing a batch with several little Darwin parts
Assembled X-axis
My newly organized workspace... I had to clean up before I could have another Darwin :)
X-axis
Test assembling the frame. Do you also like my laser-cut platform? :)
Test assembling the frame.
Test assembling the frame. Its proud parent is in the background. Its grand parent is taking the picture ;)
Yoda, processed with "ReadyPart(TM)"
Actually a more faithful representation of Yoda's skin.
Yoda, after using scrub lotion!
The object appeared sparse, I got my smooth Yoda with a hole in it's bottom. (Yes, I agree that sounds strange...)
Extruder holder
Leonard Darwin, a son of Charles
RepRap's at Protospace's second workshop
Ties to improve a square profiled beam from caving in in a the other direction.
The black and yellow parts are printed by Charly, the 3D printer in the back of the room. This 3D print has just printed a little 'Pony'.
This will be a heated platform (from 2mm aluminium sheet) cut with a Stanley knife.
Two aluminium T-profiles for mechanical rigidity and thermal conductivity. Nichrome is taped to the T-profile, with thermal grease between it for extra conductivity. Makes for a great thermal connection!
Placed the profiles with some spacing.
Added silicone to it for insulation. Left it to dry (or actually the opposite, it needs humidity to cure). Another T profile is for affixing it and for rigidity.
version 3 of my Bowden NEMA23 extruder. http://www.thingiverse.com/thing:1947
(v.3) Of my new NEMA23 extruder drive mechanism with integrated Bowden coupling. It can mounted in various ways and stacked for multiple extruders to be mounted on a single machine.
(Version 1 of) my new NEMA23 extruder drive mechanism with integrated Bowden coupling. It can mounted in various ways and stacked for multiple extruders to be mounted on a single machine.
My universal Bowden coupling http://www.thingiverse.com/thing:1899
My universal bowden coupling http://www.thingiverse.com/thing:1899
RS arrived! Whoohoo! And no, those rods were not straight anymore... They all have been bent, especially at the lower end of the photo. Doh!
I've cut my Darwin rods with the little hacksaw above. No more I thought, and I ordered the bigger one!
Bottom view of my NEMA17 bracket for Darwin's Z-axis. http://www.thingiverse.com/thing:1954
My NEMA17 bracket for Darwin's Z-axis. This is how it's bolted onto a corner bracket. http://www.thingiverse.com/thing:1954
Package arrived. Don't know about this NEMA14's torque, but it sure is cute :) The mini-motor for Mini-mendel!
Mini motors for mini-mendels :)
A small motor (NEMA17) for the Z-axis installed on my mount.
Yay, NEMA17's are so much cheaper. Plus I've freed up a powerful stepper for fast extrusion!
Simple NEMA17 filament drive by Siert. You can easily pull out the filament towards you (without needing to turn the motor for ages!)
Protostruder
Printing new PLA
Mini-Mendel and Darwin side-by-side. One fits inside the other, meaning that eventually we could print out the whole printer 'assembled'.
This is a DIN A4 piece of paper and a business card.
Creating an adapter board for controlling three extruders! (heater, motor and temperature sensor)
It works with one extruder... now two more!
Ultimachine PLA works great :)
Mini-mendel alternative Z-bearing mount... doesn't work very well. Needs a specific bearing which I ordered.
An alternative way to fit a regular skate bearing. Didn't work very well because the inner diameter is not correct, getting the 6mm threaded rod centered is hard.
It works well with Single row 6mm ID 626ZZ bearings.
Bottom view of the Z-motor mount.
X-motor mount
Finished extruder adapter for BfB 3.1 board. It will control up to three extruders (two motors at this moment, three heaters and 3 thermistors).
BitsFromBytes extruder with my Bowden coupling screwed onto it.
Going/running nuts on the threads...
Base assembly
The base of the Mini-Mendel
Enough for tonight. I can't make any noises or I'll wake my significant other :)
One of the Z axis sliders
See also other Mini-mendel photos: http://picasaweb.google.com/lh/view?uname=erikdebruijn1&isOwner=true&tags=Mini-Mendel
These parts were produced on one of my Darwins
Left is the mini-mendel, right is a (modified) Darwin
Two sets of mini-mendel parts, separate parts in the front, an assembled one in the back!
Pololu with cap.
Pololu motherboard
For some hardcore rod cutting :)
A new motherboard to replace the BitsFromBytes one. All stepper controllers and a heating output are integrated. I added aluminium angles as DIY heatsinks.
