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- 1 Coil flint from a BIC or Mini-BIC lighter;
- 4 Shims w/ inner diameter > 5 mm (I used rolls from a used bicycle chain;
- 1 screw M3 5 mm length
OR
- MK8
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- PTFE liner 40 cm;
- 2 608 bearings;
- 2 screws M3 20 mm length;
- 3 M4 nuts to secure the PTFE line (2 for the loop and 1 for the start of the bowden line to the hot-end);
- 1 Step motor NEMA 1.7A (or even lower);
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