Small Bits 20 squares per inch
Small Bits 20 squares per inch
I'm look at a project would create checkering at 20 squares per inch.
How small of a bit can Vcarve 9 support, Dental burrs? .01526 dia.
How small of a bit can Vcarve 9 support, Dental burrs? .01526 dia.
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Re: Small Bits 20 squares per inch
It should work with any size bits, regardless of how small they are.
Gerry - http://www.thecncwoodworker.com
- martin54
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Re: Small Bits 20 squares per inch
As ger21 says there shouldn't be any limit on the size of bit you can use with the software, not sure what bits you are planning to use but I would probably be looking to use an engraving bit for something like that, would experiment a bit using the toolpath preview to see just how big I could have the flat to help give a good finish to the flat areas
Re: Small Bits 20 squares per inch
I want to try stock checkering.
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Re: Small Bits 20 squares per inch
I have a small bit with a tip diameter of .001
I use it for name plates in laminated plastic.
How small is small?
I use it for name plates in laminated plastic.
How small is small?
Imagine the Possibilities of a Creative mind, combined with the functionality of CNC
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Re: Small Bits 20 squares per inch
I have some .5mm bits and smaller. The software will accept them, but good luck cutting anything with a .5mm bit without it snapping in half.
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Re: Small Bits 20 squares per inch
I have bits smaller than that & a lot is down to the quality of the bits, the settings used & how rigid your machine is. I have snapped them but usually because I was trying to push them to hard.Mikehell wrote:I have some .5mm bits and smaller. The software will accept them, but good luck cutting anything with a .5mm bit without it snapping in half.
What I tend to use the most though if I am using small bits are tapered ball nose bits, have them down to 0.5mm & you can get away with a lot more than you would using a straight shank bit of the same size
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Re: Small Bits 20 squares per inch
If you're doing regular checkering, it's done with a 90 deg V-bit. Doesn't matter what size, as long as it come to a true point (no flat tip).I want to try stock checkering.
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Re: Small Bits 20 squares per inch
Taperd bits that come to a point are a whole other ballgame. Trying to use a 1/8 shank.4mn Kyocera bit without being super duper careful will snap a bit. I pretty much end up not using anything smaller than 2mm, typically I won't go smaller than 3mm or 1/8.martin54 wrote:I have bits smaller than that & a lot is down to the quality of the bits, the settings used & how rigid your machine is. I have snapped them but usually because I was trying to push them to hard.Mikehell wrote:I have some .5mm bits and smaller. The software will accept them, but good luck cutting anything with a .5mm bit without it snapping in half.
What I tend to use the most though if I am using small bits are tapered ball nose bits, have them down to 0.5mm & you can get away with a lot more than you would using a straight shank bit of the same size
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Re: Small Bits 20 squares per inch
I haven't come across tapered bits that come to a true point only ball nose. The engraving bits I have that come to a point came with the machine & are either 6mm or 1/4" shank.
I thought that checkering had a flat bottom which was why I had suggested using an engraving bit with a flat tip, Mike-S who has a lot more experience than me put me right on that one
As I have said before I am probably way to conservative with my feed settings which is maybe why I haven't broken the tips off more bits but the machine plays a big part as well, especially with small bits, when was the last time you checked the run out on your spindle ? Even with a rigid machine to much run out will break bits
I thought that checkering had a flat bottom which was why I had suggested using an engraving bit with a flat tip, Mike-S who has a lot more experience than me put me right on that one
As I have said before I am probably way to conservative with my feed settings which is maybe why I haven't broken the tips off more bits but the machine plays a big part as well, especially with small bits, when was the last time you checked the run out on your spindle ? Even with a rigid machine to much run out will break bits
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Re: Small Bits 20 squares per inch
martin54 wrote:I haven't come across tapered bits that come to a true point only ball nose. The engraving bits I have that come to a point came with the machine & are either 6mm or 1/4" shank.
I thought that checkering had a flat bottom which was why I had suggested using an engraving bit with a flat tip, Mike-S who has a lot more experience than me put me right on that one
As I have said before I am probably way to conservative with my feed settings which is maybe why I haven't broken the tips off more bits but the machine plays a big part as well, especially with small bits, when was the last time you checked the run out on your spindle ? Even with a rigid machine to much run out will break bits
Ok, so a tapered bit is technically a ball nose. But if it's a ball nose that tapers down to a .5mm ball, I consider it a point anyway.
My first "beginner" CNC was a China 3040 so I purchased a bunch of tiny 1/8 bits for it. Still use a bunch if 'em on the ShopBot
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Re: Small Bits 20 squares per inch
If you're doing checkering with a 3-axis machine on anything that's not flat you're going have inconsistent width "lines" unless you correct for curvature.anyducks wrote:I want to try stock checkering.
Perhaps a manual checking tool would be the way to go? Pretty satisfying watching the pattern take shape.