Needle Chopper

[Oregonerd]

After a couple failed offerings from Amazon, my gal pal wanted me to make her a needle chopper. An empty “Ollie” chewable gummy vitamin bottle twists on from below to catch the needles. Most choppers cut in the wrong place so that the blade hits the hardened needle. They don’t last long that way.

My springs might not have enough travel. Before I complete the base I need to test the travel. It seems to be 20mm. The top plunger printed beautifully on my X2D, the blade fit perfectly snug. The springs press fit nicely without excessive force, no tolerance needed.

Material is Bambu PLA Tough. My overhangs were a bit too aggressive so the plunger looks a bit wonky but it will be fine as this is a one off.

[Oregonerd]

Keeping the design modular so that it works with ball jars, Ollie vitamin containers and possibly others. Replaceable container collar. Nailed it first try. Next up, the needle insertion stop block to accommodate multiple needle sizes both known and unknown.

Design note: Chopping through the hardened needles kills blades. Needle barrel diameter and length have to be considered. Still noodling that. Changeable blocks. But can I make one block do 2 different needles?

[Oregonerd]

Finally finished it.