Laser-cut spring clip to reduce rattle in Koh-I-Noor leadholder

I use the Koh-I-Noor 5201 leadholder mechanism quite a bit in the pencils & leadholders I make. The mechanism is convenient to use, but does suffer from rattling ever so slightly inside the metal body. I designed a little springy clip from some brass tube which attaches to the reservoir tube and presses it gently to one side, greatly reducing the rattle.
It's made from 4x3.1mm brass tubing and is cut on my 60W JPT M7 laser from Bogong CNC. Lens is 112x112mm and cutting parameters were 1000mm/s 90% 41kHz 200ns and wobble 0.2x0.03mm, repeat until cut through. The rotary axis uses a Sherline CNC rotary table and tailstock, driven by an EiBotBoard stepper board, which in turn is controlled by an AutoIt script I wrote. It looks through the object list in EzCad and marks them at specified angular positions (EzCad has its own feature to do this, but I have found it to be unreliable).
To prevent the long thin "finger" from overheating, I'm adding a 2 second pause between successive cuts, and also blowing air through the middle of the tube to help keep it cool.
#fiberlaser #lasercutting #leadholder