Little Spectra line CoreXY. (in progress)

[Kezat]

Been working on a small coreXY printer 2020 aluminum extrusion frame.

Printer overview video during a Benchy print at 90mm/s

https://youtu.be/b97vSFIeV14

Slight clicking is from the super cheap Vbearings for the spectra line, still need to find a good source for quality bearings that are at a sane price. If anyone knows of a source let me know.

Core XY with spectra line for all 3 axis, Z is 2:1 will a pulley system.

Smoothieboard controller.

24V system.

Titan extruder. (direct drive)

E3D V6 hotend.

Heated bed with glass top (blue tape temporary)

Printer frame about 29cm square.

Print area X120mm Y150mm Z135mm

Would cost me about 550$ to make it again but that could be reduced with cheaper electronics none genuine parts and shopping around.

At the moment I'm sorting out a issue with some horizontal banding, at random intervals the layer heights are not perfect causing some layers to be a bit squashed or stretched thin, mostly a cosmetic thing but I would like find out why. Also some ringing but I have not messed with accelerations or jerk settings yet.

Has been a lot of fun to design and I'm learning a lot. I welcome any critiques or thoughts.

Matthew

[Patrick Barnes]

Looks great! 

How do you find the walking on the pulleys?

-Patrick

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[Kezat]

As far as I know it does not seem to be a issue, full travel is about a 4.5mm of total vertical change. The way its wound on the pulley both entering and exiting line at the pulley keep the same relative vertical spacing so I think the carriage position should remain correct with only the line tension changing slightly.

[ekaggrat singh kalsi]

http://www.thingiverse.com/thing:380595

designed something similar but never got around to build it!