We use cookies to personalize content, interact with our analytics companies, advertising networks and cooperatives, and demographic companies, provide social media features, and to analyze our traffic. Our social media, advertising and analytics partners may combine it with other information that you’ve provided to them or that they’ve collected from your use of their services. Learn more.
I’ve had 2 of my 1/16 ball nose bits with a 1/8" shank snap recently. Would my feed rate or plunge rates be too high that would cause them to bind? The first one I watched as it was carving and it was carving across the plane of the wood and snapped, no real binding on it.
Each time I switch to a 1/8 ball nose with a 1/4 shank and have no issues, but I’m trying to get more detail than that bit provides.
What settings were used for the instance where they snapped? Can you post a photo of the carve where the bit broke, and the cut settings used (feedrate, plungerate, etc)
I didn’t get a pic, but it was about 5 minutes into a 3d carve of a butterfly. The first time I was working on a dragonfly. Each time one has snapped, it’s been in the initial stage as it’s starting to shape the edge of whatever I’m carving.
Oh, youre doing 3d finishing passes…
A tapered ball bit would be more appropriate for this and the taper geometry make them much stronger than straight sided ball bits.