Re: Increasing Motor RPM via VFD
?As I mentioned, it gave me clean accurate cuts. Joe, I believe you are moving quicker in the video but it could be due to shallow passes. I have not counted the passes. You recall how deep that
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imran
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#113727
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Re: Felder Feeder for Sale
Label says MOT 1~ Imran
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imran
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#113726
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Re: Increasing Motor RPM via VFD
I agree with Brian, The FD250 is awkward to use and has a steep learning curve. The machine does not feel good until it is dialed in then it is a pleasure to use. Joe
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bacchus6015
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#113725
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Re: Felder Feeder for Sale
Yeah, if it¡¯s close-ish to Me I¡¯d be interested. I might be a brick shy of a load, but what phase is it? I don¡¯t see it on the motor plate. Patrick
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Patrick Kane
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#113724
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Re: Increasing Motor RPM via VFD
Get some experience under your belt and then you can decide if things need changing and what bit is best. Brian Lamb blamb11@... www.lambtoolworks.com
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Brian Lamb
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#113723
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Re: Increasing Motor RPM via VFD
Two more things to check if you are getting poor results are the run out of the Wescott chuck and the motor bearings. I bought my FD250 used and it came with bad bearings. The previous owner used a
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bacchus6015
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#113722
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Re: Increasing Motor RPM via VFD
Good to know Dave ?
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imran
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#113721
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Re: Increasing Motor RPM via VFD
Woodworkers Tool Works in Melrose WI will sharpen birds mouth. Call to verify as I've not had it done for several years. Dave ________________________________ Sent: Saturday, January 30, 2021 12:03 PM
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David Kumm
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#113720
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Re: Increasing Motor RPM via VFD
I use two flute upcut spiral solid carbide end mills in my Multirouter using a variable speed motor 8000-24000rpm. I'm guessing I run it in the 10-12000rpm ballpark. Most often using 1/2 or 3/8"
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Jason Holtz
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#113719
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Re: Increasing Motor RPM via VFD
Joe, I had to use supplemental holding when I just had single eccentric clamp. When I made clamps for K975, I intentionally used vertical shaft design same as FD250 and bought two extra vertical
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imran
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#113718
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Re: Increasing Motor RPM via VFD
Here is video of the FD250 cutting a mortise with Pneumatic clamps and carbide birdsbeak bit. https://www.youtube.com/watch?v=vf0aBC1FD0c <https://www.youtube.com/watch?v=vf0aBC1FD0c> Joe
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bacchus6015
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#113717
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Re: Increasing Motor RPM via VFD
Brian, Not having a reference or working experience makes it difficult to determine what you is good or not. Buying used machine with used bits (previous owner had a small business) another
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imran
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#113716
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Re: Increasing Motor RPM via VFD
I did not find the speed with the FD250 at 60 Hz to be a problem and had no issue with quality of cut or flat bottoms using birdsbeak bits. I liked the back and forth motion of cutting mortises with
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bacchus6015
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#113715
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Re: Felder Feeder for Sale
Good price, you might mention where you are¡ shipping could kill the deal. Brian Lamb blamb11@... www.lambtoolworks.com
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Brian Lamb
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#113714
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Re: Increasing Motor RPM via VFD
I don¡¯t know that end mills will be any different in depth of cut on side to side passes, but they will plunge better than a birdsmouth bit. I¡¯ve done mortises where you plunge 2¡± deep, step
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Brian Lamb
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#113713
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Re: Increasing Motor RPM via VFD
Some have electric fans, some have motor mounted fans. My 5hp mill has a motor mounted fan, my son has a 7.5hp mill and his has electric fans. Most VFD rated motors have heavier windings and
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Brian Lamb
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#113712
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Felder Feeder for Sale
I bought this a few years ago but it was too big and heavy a feeder to mount on my Hammer C 331, so I never used it. The fellow I bought it from also had a home workshop. He used it very little;
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David Okum
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#113711
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Re: Increasing Motor RPM via VFD
Brian, My results were fine with 14mm in Cypress but I took small steps. If endmill won¡¯t allow a bigger step (depth of cut per pass) then i have no interest unless it was cheaper and bits would
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imran
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#113710
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Re: Increasing Motor RPM via VFD
Inverter duty does deal with the winding and insulation issues but the mechanical limits of higher speed must also be factored. 4500 rpm seems to be the standard for at least 2 and 4 pole motors. I'm
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David Kumm
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#113709
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Re: Increasing Motor RPM via VFD
Fan cooled motors can have issued with low speed operation. I've seen some people add a computer type fan that a vfd turns on when hz drops below a set amount to move air. There are also motors that
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David Kumm
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#113708
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