Spring loaded engraver bit for ER16 collet (ER11 to ER16 remix)
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ER16 remix of the original spring-loaded PCB solder mask engraver bit (ported from ER11 to ER16).
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Description
This is a remix of “Spring loaded engraver bit for ER11 collet” by dulouie, adapted to be clamped in an ER16 collet.
Purpose: PCB solder mask engraving / opening with a spring-loaded mechanism that adds compliance and helps reduce the risk of cutting into copper when Z isn’t perfectly consistent.
What changed in this remix
ER11 to ER16 interface conversion for compatibility with ER16 spindles/collets.
No functional change besides the collet interface: same spring-loaded concept as the original.
Printing recommendations
Material (recommended): PC-ABS (best for heat resistance and clamping strength).
Wall/perimeters: 4–6
Infill: high (≥30%)
Supports required: use Tree supports (recommended) due to the geometry (overhang features).
Avoid PLA (softening/creep risk under heat and clamping load).
Hardware / tool
Typically used with a 60° V-bit for solder mask engraving (same as the original concept).
Spring and hardware follow the original model’s approach.
Safety notes
This is a printed part used in a rotating tool: start at low RPM, verify clamping, runout and balance.
Eye protection strongly recommended.
Original model credit: dulouie ✅