Does anyone know the slowest RPM the spindle can run on a TWD router? The reason I ask......Has anyone tried a forstner type bit in a toolholder?
jnr
Slowest RPM
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Slowest RPM
Josh Rayburn
Hall's Edge, Inc.
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Hall's Edge, Inc.
CNC Machining Service
Dell Precision T3400
Win7 Professional 64 Bit/Core2Duo E8400 3ghz/4 GB Ram/NVIDIA Quadro FX570
Re: Slowest RPM
Josh,
Most of the cabint shop machines are rated at 4000 rpms at the lowest, but torque is lost as you go down. So don't know if you could turn the forstner bit and cut effectively at that rpm/torque. I would bet that an interperloted (pocketed) hole would potentially be faster.
Dennis
Most of the cabint shop machines are rated at 4000 rpms at the lowest, but torque is lost as you go down. So don't know if you could turn the forstner bit and cut effectively at that rpm/torque. I would bet that an interperloted (pocketed) hole would potentially be faster.
Dennis
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Re: Slowest RPM
Cool, thanks Dennis!
jnr
jnr
Josh Rayburn
Hall's Edge, Inc.
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Dell Precision T3400
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Re: Slowest RPM
Josh, we run a program in which we use a regular run-of-the-mill 3/8" drill bit to drill holes through plastic. I run it at either 3000 or 3500 RPM (can't remember which right now) and it does just fine. Just be mindful of the plunge speed, and I'd be willing to bet a forstner bit would work fine at 3000-4000 RPM, which is what most hand-held drills run at.
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Re: Slowest RPM
I run Forstner bits a lot. I use a 20mm for rafix fittings everyday. Just ran 1.25" for a special run. I think I run them at 10k and 100 imp plunge.