TJ's Resin–IPA Funnel for A6 coffee filters
thingiverse
When searching for double-walled funnels as tool for separating my IPA from the resin inside I only found relatively small funnels. So I created my own, fitting the usual size 6 coffee filters. The funnel is divided in three parts: the internal filter holder, the external holder and the bottom nozzle to be screwed into the external holder.
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