RPM Speed
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RPM Speed
Is it better to spin small bits (.062) faster or slower when engraving wood? I'm sure there are more variables but I have snapped 2 bits already. Vetric Aspire software and DeWalt router. Thanks!
Re: RPM Speed
In general, yes, faster RPMs are used with smaller diameter bits. But, that's like 1/10th of the story. The rotational speed combines with the linear movement speed (feedrate), the depth-of-cut (aka axial engagement), stepover (aka radial engagement), and the particulars of the material being cut, and the cutting bit. Solid carbide bits take different numbers than welded-insert carbide, different still from High Speed Steel (HSS) bits.dciliberti wrote:Is it better to spin small bits (.062) faster or slower when engraving wood? I'm sure there are more variables but I have snapped 2 bits already. Vetric Aspire software and DeWalt router. Thanks!
So, to do the numbers right takes more than just a simple rule of thumb. Are you using a Feeds & Speeds Calculator? Have you taken a read through material about F&S? The CNCCookbook.com site has tons of such information, and there are abundant F&S calculators on the 'net...many are only going to be useful with a trained eye.
Hope that gets you started...
Regards,
Thom
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ThomR.com Creative tools and photographic art
A proud member of the Pacific Northwest CNC Club (now on Facebook)
ThomR.com Creative tools and photographic art
A proud member of the Pacific Northwest CNC Club (now on Facebook)
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Re: RPM Speed
The G-Wizard Calculator at CNCCookbook.com has been very useful for me especially in getting Feed/Speed rates for unknown materials such as plexi-glass, etc...
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