jack forsberg
06-29-2013, 10:14 AM
It was time to thin the heard . I had 5 drill press all in the midst of being fix up( one of my many problems) and so i was holding on to my newer Delta(900l) 16.5 12 speed from 1987 until i had the time to get a variable frequency drive(VFD) for the older Delta 17" with foot feed from the 1940s. this was a 3 phase machine i have been running off my rotor phase converter (10hp). problem is i had to have the RPC running to use the press and its only a 1 hp press( waste of power). the newer 16.5 press was 120 volts single phase and this has been handy over the years because its is an easy to move machine from place to place as the shop got rearranged for other machines and i have 120 volt outlets around the shop.
Well a number of weeks ago i was sick of not having the space so i sold the newer 1987 16.5 press(something of a goal for be is to buy older machines )and got a 120volts input variable frequency drive(VFD) from Temco (the typical cheap volts hrz FM50 model) for the 3 phase motor on the older Delta 17" . The older Delta is so much better a press than the newer delta I had. The money i got for the newer press paid for the drive(VFD) and control switching i added . in total i spent $180 for the upgrade.
What the up grade gave me is phase conversion from 120 volts house hold power to 240 volts 3 phase power, variable speed control, braking, reverse, soft start,overload motor protection and more. all i can say is the VFD has changed the way i see 3 phase machines. I Find my self looking for them for any machine that need braking or speed control let along Phase conversion.
I used an old disconnect switch to put the VFD in and for my incloser and so its a clean set up. I have 6 VFDs in the shop now and this is the first time i have used the 120 volt input. boy do i love it. these 120 volt VFDs are limited to about 1HP 3 phase so will only work on machines like the press/lathes and machine with small motors.
One of the presses a Jones and shipman from England got set on the end of the Wadkin lathe as i did not use that end often. the last problem will be what to do with the 2 buffalo's in the Q. I think i will have to sale them too.
http://i927.photobucket.com/albums/ad111/tool613/wadkin/DeltaVFD001_zps74e5a031.jpg
http://i927.photobucket.com/albums/ad111/tool613/wadkin/DeltaVFD003_zpsc4486ee5.jpg
http://i927.photobucket.com/albums/ad111/tool613/wadkin/DeltaVFD007_zps2ec953e0.jpg
http://i927.photobucket.com/albums/ad111/tool613/wadkin/DeltaVFD008_zpsb598b95f.jpg
i made a video of the test run and found that the quill bearings were bad. but i had got all the fution to work.
https://www.youtube.com/watch?v=6UsuoWTe7xs
well after the VFD was set up i did the quill bearings and upgraded them to SKF. Most were still being made but the old snap ring bearing on the top was obsolete with the extended inner race. I ended up using a SKF and made a spacer to make up the for the extended races on the old new departure bearings.. all in the 4 bearings were easy to change and the quill in tight now. Next i put a new chuck in and went from 1/2" to 5/8 french ball bearing chuck of a better grade and used a small bit of blue lock tite on the Jacob taper solid quill stub. The press was now ready to run high speed for use as a pin router for short periods. Now this is just if i need such a thing as i have two other mortisers but not a slot mortiser. so i have the spindle running at about 7000 rpm at 120 hrzs setting on the VFD and when in the top pulley speed. Made a movie of it cutting you be the judge.
see next post for the movie on that.
thanks for looking
Well a number of weeks ago i was sick of not having the space so i sold the newer 1987 16.5 press(something of a goal for be is to buy older machines )and got a 120volts input variable frequency drive(VFD) from Temco (the typical cheap volts hrz FM50 model) for the 3 phase motor on the older Delta 17" . The older Delta is so much better a press than the newer delta I had. The money i got for the newer press paid for the drive(VFD) and control switching i added . in total i spent $180 for the upgrade.
What the up grade gave me is phase conversion from 120 volts house hold power to 240 volts 3 phase power, variable speed control, braking, reverse, soft start,overload motor protection and more. all i can say is the VFD has changed the way i see 3 phase machines. I Find my self looking for them for any machine that need braking or speed control let along Phase conversion.
I used an old disconnect switch to put the VFD in and for my incloser and so its a clean set up. I have 6 VFDs in the shop now and this is the first time i have used the 120 volt input. boy do i love it. these 120 volt VFDs are limited to about 1HP 3 phase so will only work on machines like the press/lathes and machine with small motors.
One of the presses a Jones and shipman from England got set on the end of the Wadkin lathe as i did not use that end often. the last problem will be what to do with the 2 buffalo's in the Q. I think i will have to sale them too.
http://i927.photobucket.com/albums/ad111/tool613/wadkin/DeltaVFD001_zps74e5a031.jpg
http://i927.photobucket.com/albums/ad111/tool613/wadkin/DeltaVFD003_zpsc4486ee5.jpg
http://i927.photobucket.com/albums/ad111/tool613/wadkin/DeltaVFD007_zps2ec953e0.jpg
http://i927.photobucket.com/albums/ad111/tool613/wadkin/DeltaVFD008_zpsb598b95f.jpg
i made a video of the test run and found that the quill bearings were bad. but i had got all the fution to work.
https://www.youtube.com/watch?v=6UsuoWTe7xs
well after the VFD was set up i did the quill bearings and upgraded them to SKF. Most were still being made but the old snap ring bearing on the top was obsolete with the extended inner race. I ended up using a SKF and made a spacer to make up the for the extended races on the old new departure bearings.. all in the 4 bearings were easy to change and the quill in tight now. Next i put a new chuck in and went from 1/2" to 5/8 french ball bearing chuck of a better grade and used a small bit of blue lock tite on the Jacob taper solid quill stub. The press was now ready to run high speed for use as a pin router for short periods. Now this is just if i need such a thing as i have two other mortisers but not a slot mortiser. so i have the spindle running at about 7000 rpm at 120 hrzs setting on the VFD and when in the top pulley speed. Made a movie of it cutting you be the judge.
see next post for the movie on that.
thanks for looking