Hello,
On those cheap belt drive BT40 spindles. If I do NOT want auto tool change (pneumatic drawbar). How do I hold the tool holder in place? Is there a manual drawbar? Is it as simple as a piece of threaded rod with a nut and washer that screws into the tool holder?
Attachment 480032
I have this CNC wire saw that I built for cutting stone. I can mount a core drill to it for cutting holes to pass the wire through. Last year I decided to try to use the drill as a milling spindle to mill a flat circle in the stone I was working on. I manually fed the "Z axis". It worked well enough. The problem is the drill turns too slow for most tooling, so I'm looking at adding a proper spindle and a proper Z axis. But I don't want to go full on with an expensive spindle as I'm worried things might not work out. These seem cheap enough I can risk destroying it.
https://youtu.be/-zW5ylFKUjc
Thanks