When drag engraving our spindle squares there was an operator error moving the diamond off the edge of the stock and back over again. This caused the diamond to break free from the tool and of course this was also the last bit. The bits were $25 and required the entire tool to be disassembled. You had to custom order. The wait time would be another 2 weeks and this wasn’t acceptable. You couldn’t run down to your ace warehouse and pick up what you needed. There had to be a better way that was more economical, easier, available and worked on our smaller machines that didn’t the ability to use large collets.
In order to allow for finer detailed engraver we designed one that allows for adjustment and the hot-swapping of springs. This allow the drag engraver to do very detailed work on items such as pcb boards or fine in engravings in soft materials.
Differences with Adjustable Drag Engraver:
We have had the best results utilizing the carbide bits with softer materials and metals such as brass, copper, mild steel, aluminum, acrylics and other plastics. The diamond bits can do everything the carbide does plus hardened steel, granite, glass and other tough materials.
(I have no financial ties to Bantam or Boring Research. I just like seeing cool things happen.) pic.twitter.com/Hg4QQhKV7U
— _MG_ (@_MG_) October 3, 2019
Drag Engraver $30
Adjustable Drag Engraver $40
Extra Carbide Bit $4
Diamond Bit $8