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Re: Increasing Motor RPM via VFD
I thought they also have fan control so fan can run appropriate speed at low RPM. Imran
By imran · #113707 ·
Re: Increasing Motor RPM via VFD
I¡¯m sure Amana or Onsrud will have cutting data on their cutters for wood. You don¡¯t have enough rpm to run the theoretical amounts for wood, none of us do. I¡¯ll say it again, what¡¯s the
By Brian Lamb · #113706 ·
Re: Increasing Motor RPM via VFD
I don¡¯t think balance is the issue, the VFD rated motors are heavier windings and shellac on the windings, the higher frequencies tend to break down the insulation on the motors and overheat them.
By Brian Lamb · #113705 ·
Re: Increasing Motor RPM via VFD
Are your existing results bad? I doubt it. I wouldn¡¯t spend the money on carbide for the occasional mortise¡­ a 3/4¡± carbide extended length end mill will set you back north of $100 and carbide
By Brian Lamb · #113704 ·
Re: Increasing Motor RPM via VFD
I just want to try and see if better results can be had. Jonathan mentioned center cutting, 4 flute end mills. Does anyone have a recommendation for 3/4¡± end mill? Felder supplied birds mouth is
By imran · #113703 ·
Re: Increasing Motor RPM via VFD
That brings up the question, are inverter duty motors balanced for higher speeds than regular motors? The standard is 125% of rated speed for 2 pole motors or 75 hz. 4 pole motors are generally
By David Kumm · #113702 ·
Re: Increasing Motor RPM via VFD
VFD rated motors can generally run up to 200hz, CNC router motors up to 400hz. Torque does drop dramatically over about 90hz. OK, I¡¯ll probably start a war¡­ but you don¡¯t need huge rpm on router
By Brian Lamb · #113701 ·
Re: Increasing Motor RPM via VFD
A 50 hz 2 pole motor will run at 3000 rpm less slip at 50 hz but speed to 3600 less slip at 60 hz so your bits are probably in the 3450 range +-. I don't know if the grinding geometry of metal cutting
By David Kumm · #113700 ·
Re: Increasing Motor RPM via VFD
David, My machine label says 50 Hz. I remember speaking to Felder about it and perhaps mentioned it here as well but was told it should be fine. I will check the motor label when I am in shop to see
By imran · #113699 ·
Re: Joining group
Reply to existing email messages or to create a new thread, just send it as an email to the group. Brian Lamb blamb11@... www.lambtoolworks.com
By Brian Lamb · #113698 ·
Re: Joining group
Welcome to the group, there is a lot of great information here and I often use the search feature. I have appreciated the help that many members offer here. I had a K500P that I recently sold and have
By JP Rice · #113697 ·
Re: Increasing Motor RPM via VFD
Given the FD is direct drive, I would think the speed is closer to 3400 in the 60 hz market. Generally you can overspeed a 2 pole motor to about 90 hz assuming the motor is decent quality. Downside is
By David Kumm · #113696 ·
Re: Joining group
K Patel, welcome to you as well. Congrats on your new saw. I got lucky and Felder had my saw in stock just sitting in a warehouse, so I jumped on it.
By Steve Lyde · #113695 ·
Re: Joining group
Welcome Steve...am new myself and likewise looking to take ownership of a K700S albeit not until summer. K Patel
By KRPatel · #113694 ·
Increasing Motor RPM via VFD
After realizing that people have used end mills on their mortising attachment, I was curious if there is a way to increase the RPM of FD250. The bit on morticing attachment is likely running around
By imran · #113693 ·
Re: #forsale Felder Unofficial Survival Guide #repair #forsale
Rod i would like to purchase it if available. Thanks. stan
By Stan Blaszczyk · #113692 ·
Re: Joining group
Welcome, I just recently joined as well. Awesome group and congrats on the K700S! -Ameer N.
By Ameer N. · #113691 ·
Re: Calibration of power drive angle
So I was finally able to get the power drive calibrated, first problem was that the programming code in the attached instructions (2505) was not the correct one for my machine. There are 3 codes
By Mark Kessler · #113690 ·
Re: Mortising unit for Ad741 / FD250 #jointerplaner
Joe, did you happen to take a picture of the machine with the modified handle control bracket? ?I am interested to see this modification. ?The clamp does get in the way at times. ¡°I modified it in
By mjpalmer@... · #113689 ·
Re: Joining group
I have had a Hammer A3-31 for 4 years, a ton of Festool and a new Felder K700S arriving in a week or two. ?So looking forward to getting this saw in the shop.
By Steve Lyde · #113688 ·