Ever since seeing that the eraser mechanism in the Metaphys Locus 3way isn’t that different from a pencil mechanism, I’ve been wondering if it was possible to add an eraser component to other D1-based multipen.
I’m pleased to report my first success with the Uni Jetstream Prime 2+1.
I used two Uni Jetstream Prime 2&1 (because I needed two pencil tabs, the pen ones don’t allow knocking), a Pilot Coleto eraser mechanism (ref: LHKRF-28E) and an old D1 refill. Ideally this should have ended with a 1+1+1 (pen/pencil/eraser) and a 3-ink pen, however I was stupid and tried disassembling one pen, which ended up destroying it… before I found that disassembly isn’t required for this mod.
Despite this, I’m super happy with the result and I’m going to try and replicate it with other multipens…