Geoffs tiny 1mm screwdriver

Geoffs tiny 1mm screwdriver

thingiverse

I've relied on a tiny 1mm tip screwdriver for several years (made by modifying a smallish screwdriver handle), until it vanished - I was frustrated until I figured out I could simply 3D print a replacement. They are incredibly useful for many things - such as moving the really tiny DIP switches on WiFi Arduino's, cleaning the charging socket on an iPhone, ejecting an iPhone SIM, lifting up SMD's while unsoldering them, a tiny scraper, separating double sided tape from its backing paper and even quickie DVM probes - I use them in my workshop nearly every day. Creating a screwdriver is relatively simple. 1 - print a handle (ABS/PETG/PLA) - drill out the hole with 1mm drill if needed 2 - press in some 1mm piano-wire coated with glue on one end (superglue or Epoxy) 3 - cutoff piano-wire to desired length and grind end to make the screwdriver tip I used a 0.4mm nozzle and ABS - I had to lower the temperature to 220c, also it's a good idea to print at least two at once to prevent sagging. The screwdriver has a built-in raft that is thin enough to easily break off - then just smooth the end. A dremel with a 25mm diamond wheel makes cutting the piano-wire and shaping the screwdriver tip easy. I also ground a couple of flats on the piano-wire, to stop it rotating inside the screwdriver handle. Inserting the piano-wire may be easier if it's heated, but I didn't need it with mine.

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