boukewerner.blogspot.com
Fab@Home Extruder: April 2009
http://boukewerner.blogspot.com/2009_04_01_archive.html
Experiences while building a new (double) extruder for the Fab@Home. Thursday, April 16, 2009. To make all the electronics studentproof I dicided that it needed a housing. And wouldn't it be nice if it matches the Fabber? So I designed a PMMA housing in Inventor (my 3D program) in the same way the Fabber was build. The only problem is that it isn't possible to make this with a mill because it has some sharp internal corners to make the slots for the nuts. Front: 2 temperature controllers and the switch f...
boukewerner.blogspot.com
Fab@Home Extruder: Too hot and rising...
http://boukewerner.blogspot.com/2009/03/too-hot-and-rising.html
Experiences while building a new (double) extruder for the Fab@Home. Friday, March 27, 2009. Too hot and rising. I found a piece of insulation material after searching the entire building. It's glassfiber with a sheet of aluminiumfoil. After wrapping it around the barrel I was curious how hot the barrel could get. I started experimenting with extruding HDPE and ABS, it works. Now the tweaking starts to get an optimal flow of material. After that I found a 30V/3A powersuply that works better than the one ...
boukewerner.blogspot.com
Fab@Home Extruder: F***ing powersuply
http://boukewerner.blogspot.com/2009/04/fing-powersuply.html
Experiences while building a new (double) extruder for the Fab@Home. Wednesday, April 1, 2009. I tried to spot weld the heatingcoil with four different powersuply's, the first one gave the best result: at 10 amp (max current) the wire welded together but they didn't fuse as much as I wanted. So, I tried soldering with silver. It was tricky not to overheat the wire with the gastorch but I managed. Unfortunatley this connection broke after some fiddeling. Subscribe to: Post Comments (Atom). The machine has...
boukewerner.blogspot.com
Fab@Home Extruder: Nice housing
http://boukewerner.blogspot.com/2009/04/nice.html
Experiences while building a new (double) extruder for the Fab@Home. Thursday, April 16, 2009. To make all the electronics studentproof I dicided that it needed a housing. And wouldn't it be nice if it matches the Fabber? So I designed a PMMA housing in Inventor (my 3D program) in the same way the Fabber was build. The only problem is that it isn't possible to make this with a mill because it has some sharp internal corners to make the slots for the nuts. Front: 2 temperature controllers and the switch f...
boukewerner.blogspot.com
Fab@Home Extruder: Lots of sparks
http://boukewerner.blogspot.com/2009/03/lots-of-sparks.html
Experiences while building a new (double) extruder for the Fab@Home. Monday, March 30, 2009. The feedwire from my heatingcoil broke today. It's a double wire of the same kind as the coil itself, it's more like a thin strip. The end of the coil is folded between the feedwire and fused together. An attempt to fuse them again with the spotwelder that we have here resulted in a rain of sparks and evaporated wires. Subscribe to: Post Comments (Atom). Http:/ www.fabathome.org/. Dhobi Gats in Mumbai (30 foto's).
boukewerner.blogspot.com
Fab@Home Extruder: Temperature controller
http://boukewerner.blogspot.com/2009/04/temperature-controller.html
Experiences while building a new (double) extruder for the Fab@Home. Tuesday, April 7, 2009. For a mechanical engineer I still had to dig in deep in to electronics to find out how to control the temperature. In the end I found a very nice controller. The controller will work with the most common temp sensors like thermalcouples, ptc, ntc, pt100 and some. The ouput varies from a relay to some electronic signals. . This is no rocketscience elektronics but for a mechanical engineer it's a bit of topic.
boukewerner.blogspot.com
Fab@Home Extruder: February 2009
http://boukewerner.blogspot.com/2009_02_01_archive.html
Experiences while building a new (double) extruder for the Fab@Home. Wednesday, February 18, 2009. These are some pictures I took from a FDM 2000 at TNO in Eindhoven. You can clearly see the drivetrain. By the amount of cables I would say that the machine 'knows' exactly what the flowrate is. The exchangelable tip and the solenoid construction. Subscribe to: Posts (Atom). Http:/ www.fabathome.org/. Erik's Blog: Discussing IT, personal fabrication and a new and better world. View my complete profile.
boukewerner.blogspot.com
Fab@Home Extruder: Solitaire
http://boukewerner.blogspot.com/2009/03/solitaire.html
Experiences while building a new (double) extruder for the Fab@Home. Friday, March 27, 2009. Yesterday I went with a group of students and teachers to the Solitaire. This is a ship from the company Allseas wich is specialised in laying pipes on the seabed. These pipes are upto 60 inch in diameter (! And can be laid to a dept of 2700 m! The pipe makes a S-shaped curve and lands on the seabed. It's as easy as that ;). Http:/ www.allseas.com/uk/20/equipment/solitaire.html. A view from the aftbridge. In ...
boukewerner.blogspot.com
Fab@Home Extruder: March 2009
http://boukewerner.blogspot.com/2009_03_01_archive.html
Experiences while building a new (double) extruder for the Fab@Home. Monday, March 30, 2009. The feedwire from my heatingcoil broke today. It's a double wire of the same kind as the coil itself, it's more like a thin strip. The end of the coil is folded between the feedwire and fused together. An attempt to fuse them again with the spotwelder that we have here resulted in a rain of sparks and evaporated wires. Friday, March 27, 2009. Too hot and rising. The Celeron turns out to be a very good solution...
