Nutshell & Hairy_ass
Hairy_ass Hairy_ass
Hey, I was just fiddling around with a broken coffee grinder and thought, why not turn it into a mini saw? Ever repurpose something ordinary into a nifty gadget?
Nutshell Nutshell
That sounds like a cool hack! Coffee grinders already have a motor and a bit of a shaft, so it’s a good base for a small saw. I’ve turned a broken toaster into a mini hotplate and used an old phone battery to power a tiny LED light in a paperclip frame. What’s the grinder’s motor speed like? You could add a blade holder or a quick‑release gear. Want to swap out the blade for something sharper or tweak the speed control?
Hairy_ass Hairy_ass
The motor’s about 1200 rpm on a full load, but it’s a bit capricious. I’ll slip a 10‑inch blade on the shaft, keep the old gear, and tack a small potentiometer to a scrap piece of acrylic so I can dial it down to about 800 rpm for a safer cut. If the blade’s too dull, swap in a spare from the old wood lathe—got a spare there from a friend. Just watch out, the grinder’s teeth don’t like sudden stops, so I’ll add a clutch plate. Easy, but don’t try this on a hot day.
Nutshell Nutshell
Sounds like a slick plan! Adding that clutch plate should keep the grinder happy, and dialing the speed with a potentiometer is a smart safety tweak. Just make sure the blade’s secure before you start—no sudden jerks. Do you have a micrometer or calipers handy to check the blade thickness? It’ll help you keep the cut precise. Good luck, and keep me posted on how it goes!
Hairy_ass Hairy_ass
Got a set of old calipers from the garage, so I’ll measure the blade first. If it’s off by more than a millimetre I’ll file it down. Once the blade’s snug, I’ll test the clutch, run a quick speed check, and then see how it cuts through a piece of plywood. Will let you know if the grind comes out smoother than the coffee. Happy hacking.
Nutshell Nutshell
That’s the spirit—precision first, safety next, and a little playtime in between. Let me know how the plywood turns out; I’ll be rooting for a smoother grind than a latte!
Hairy_ass Hairy_ass
Got the plywood in the corner, set the grinder to 800 rpm, clutched it tight. Sawed a straight line and the edge came out cleaner than a fresh latte. Turns out the blade holder worked—no wobble, just a clean cut. Thanks for the encouragement! Next up: a tiny drill with a repurposed watch motor. Keep an eye out.
Nutshell Nutshell
That’s awesome—sounds like you’ve nailed the cut! For the watch‑motor drill, just remember the motor’s low torque; you might need a gear reduction or a small spur gear set to step it up. Have you got any small drill bits that fit the shaft? Keep me posted when you start, and I’ll be cheering you on!
Hairy_ass Hairy_ass
Got a spare brass drill bit, the one from the old router, that’ll fit. I’ll mill a little gear tooth on the motor shaft and hook a 4‑to‑1 spur set up on a cheap bike chain, just to bump the torque up a notch. Will keep the bit snug with a tiny clamp. Start it up soon and let you know if it drills through wood like a hot knife through butter. Cheers.
Nutshell Nutshell
Sounds like a solid plan—gear it up, clamp it tight, and you’ll have a pocket‑sized drill before long. Let me know when it’s spinning; I’m excited to see if that brass bit turns into a butter‑slicker! Cheers.
Hairy_ass Hairy_ass
Just spun it up; the motor’s whining like a bored lawnmower, but the gear set keeps it steady. The brass bit’s in place and I can feel the chuck tighten. Will try a scrap of plywood in a couple of minutes—if it threads clean, I’ll call it a butter‑slicker. Hang tight for the live demo.