Advanced Fabrication Lab

State of dual extrusion

This week is Korean thanksgiving week with almost paradigm shifting 5 day weekend, (with only 2 days of weekday). Just in timely manner the dual extrusion kit for my Ultimaker has arrived on the last day of weekday, since then I’ve been assembling and calibrating non-stop.

직장인들에게는 큰 축복인 수목금의 추석연휴가 오기 바로 직전 화요일에 네덜란드에서 작업실로 Dual extrusion kit 소포가 도착. 정확히 2주 걸리는구나.. 부모님 뵈러 집떠나면 프린터와 떨어져야 하기 떄문에 이틀간 논스톱으로 조립과 칼리브레이션.

Unboxed!

Been using my Ultimaker for couple of years making numerous modifications, one of the most common but immensely useful is the Owen’s Bowden Clamp. I was too excited to add 2nd extruder and neglected there were some changes in hot end design, requiring some parts to be printed out prior to take it apart, especially the dual bowden clamp. It works like a charm!

울티메이커를 2년간 사용하면서 일일히 다 기억을 못 할 정도로 개조를 많이 해 뒀는데, 그 중 가장 유용했던 부분이 Owen’s Bowden Clamp이다. 소포 받고 신나서 듀얼 보우덴 클램프를 먼저 프린트 해 놓지 않고 기계 분해부터 했다가 최소한만 다시 조립해서 프린트하느라 약간 애를 먹음.

IMG_5315

I am using ABS for main model and PLA(black, in this case, to clearly see drizzling for fine tuning..) for dissolvable support so I can use it like a commercial FDMs, tho there are many other modifications to be made in the future. After hours of tedious set up and calibration I was able to make the first dual-material Hilbert cube. It was interrupted about half way through. I also printed out a traffic cone which printed out much better. It has to do with drizzling of PLA and switching back and forth between nozzles for every print with different materials. I assume it’d be much easier to print if I use both for ABS or HIPS for support.

앞으로는 상용FDM처럼 ABS를 주 재료로 사용하고 서포트는 PLA를 사용할 계획인데 현재 프린터가 PLA 전용으로 설계/개조가 되어 있어 앞으로 heated bed나 chamber과 같은 추가적인 개조가 많이 필요하다. 여튼 수시간의 설치와 칼리브레이션 끝에 아직은 매우 지저분 하지만 dual material print를 출력할 수 있게 됐다.

Hilbert Cube

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