ultimaker syringe extruder II
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Published on December 8, 2011
Derived from
ultimaker syringe extruder
by joris
Description
Updated and improved some things to better attach to the ultimaker. Works now with 100ml syringes. Still uses the filament for 'driving' the syringe. Also new are the end stop enlargers so the endstops still work with the syringe attached.
The concept is more or less the other way round. The filament pulls the syringe and squeeze the material out.
for more images and movies, see facebook.com/europerminutedesign
The concept is more or less the other way round. The filament pulls the syringe and squeeze the material out.
for more images and movies, see facebook.com/europerminutedesign
Instructions
Resize the shapes suited for your syringe.
Print the syringe holder.
Print the end stop enlargers.
Screw same [ultimaker spare] m3 bolts through the holes to fixate the syringe holders to the moving head.
Attache everything.
Generate gcode
Without temperature settings
Very low extrusion speed
Open the gcode in a text editor and replace "E" with "E-"
[we want to pull the filament not push it, you can also change the firmware, but this was easier for me]
Print and use the live control panel in repg to tune the flow and speed.
Print the syringe holder.
Print the end stop enlargers.
Screw same [ultimaker spare] m3 bolts through the holes to fixate the syringe holders to the moving head.
Attache everything.
Generate gcode
Without temperature settings
Very low extrusion speed
Open the gcode in a text editor and replace "E" with "E-"
[we want to pull the filament not push it, you can also change the firmware, but this was easier for me]
Print and use the live control panel in repg to tune the flow and speed.
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Proton
on
December 9, 2011
said:
Why did you choose to use 2 bowden cables instead of 1 cable and a hinge? How large are the forces?
joris
on
December 9, 2011
said:
I use 1 bowden cable, the other one you see on the photo is for the 'normal' high quality prints you can make with an Ultimaker.
I do loop the filament back upwards again so you don't get forces which bend the syringe and you 'gear' it to even produce more force [how much and how much is needed i don't know]
License
ultimaker syringe extruder II by joris is licensed under the Attribution - Share Alike - Creative Commons license.
More from joris
I might wanna try this.
But there is one thing:
How do you swap between the bowden-tubes on the drive side
(normal-printing / sringe-printing) ?
Do you have to disassemble the filament drive block for that ?
Hi,
I made a quickrelease on some of my machines on top of the moving head... [to make it even more easy to print colorfull objects]
but i think the easiest way is to find/order a second ptfe tube
cheers\joris