!!! Currently under construction (...PAUSED for an unspecified period...). Content might be faulty and incomplete !!!• This ELEVEN -parts object is one component of my One Man - *Co.Me.Do.ONE - project. CP-v7 (Co.Me.Do. - Part No: 7). To use this printable object, additional components are required. • Description 1:• The All You Can Feed Buffet...• MENU 1: The complete CPv7 Download Package for 3mm and 2.85mm Filament (Already available). • MENU 1.1: !!! Great stability improvements to the feeder base (Today: 2014-12-16) !!! • MENU 1.3: !!! Stability improvements to the feeder base (Today: 2015-12-22) !!!• The basic design has been completely revised again ... BEMF - Reloaded :-)• Significantly lower breakage / will bend Risk of all static elements, with the use of possibly substandard filaments for the construction of the feeder. • The Bowden guide on the base now allow easier insertion and removal of the standard Bowden tubing OD: 6 / ID: 4mm.• The two stabilizing bridges were revised slightly.• MENU 1.5: Carriages for alternative couplings eg. UM - Tube collet (Will be soon available). • MENU 2: The complete CPv7 Download package for 3mm, 2.85mm and 1.75mm Filament (Will soon be available). • MENU 3: SketchUp source files (Will soon be available). • Description 2:• The CPv7-BEMF-v1 basic design has completed over 750 hours of operation successful. • Universal "Bowden-Extruder - Material-Feeder", suitable for filaments with a diameter of 3mm, 2.85mm, and later 1.75mm.• Based on the conventional unicycle-principle: Suitable for a variety of knurled and hobbed drive wheels.• Finely adjustable uniform pressure, and the lowest possible friction: A large counterpressure roller (608ZZ-Bearing), and two limiting rollers (624ZZ-Bearing), can reliably carry material through the couplings in the Bowden.• One hundred percent compatible with the Ultimaker 2 machine, Software and firmware adjustments are NOT required. But fully universally applicable.• Modular feeder structure: Adjustable guide slides available for different hard and thick filaments: Even flexible filaments, for example Ninja Flex (Layer: 0.1mm / speed. 20-25mm/s.) can be printed with CPv7. But tests with very soft filaments are currently not yet completed.• Depending on the selected guide slides, an almost trouble-free material change is possible: it needs a little force for inserting new material, it must be straightened slightly only in the initial region. The adjustment of the spring tensioning lever can be moved temporarily close to zero, this allows an added locking lever.• A very reliable and almost wear-free operation is possible depending on the correct implementation. A simple work for a 3D printer, and a not too complicated work for the user. All optional components are relatively cheap to buy. You need for a successful reproduction a generally functioning 3D printer. Unfortunately, a whole long printing time is expected. Ask at best an experienced friend or colleague to accompanying Support.• Very stable Bowden guide (Bowden Fix) at the top outlet: The lower material supply can be easily implemented by means of a short length Bowden. An almost free of play support for the Bowden tube in direct interaction with the presented powerful pneumatic couplings, shorter retractions are possible, and a sudden grip loss is almost unthinkable. But there will be later carriages for alternative couplings.• Integrated cable Management.• There are different covers to choose from: The installation of a neutral variant is easy to implement.• Versions for left and right rear panel mounting available. Note for Ultimaker 2 users: Please use the right version. The left version is currently not optimized for extruder 2 operation, and does not fit on the rear Panel.• Information regarding enhancements and bug fixes you will find in the "Comment" section. Photos with the already assembled object does not show the latest design.• Again and again: My work for you lives solely by your feedback. If something is wrong or useless in my designs, I need more information from you so that I can ever change anything. Suggestions to improve or simplify my designs and descriptions are highly desirable. So if you use my designs and parts thereof, please take a few moments to convey a little feedback.