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Discussion Starter #1 (Edited)
It was time to thin the drill press 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 (that i got all shinny and new )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 and running the RPC to drive the press so I sold the newer 1987 16.5 press(something of a goal for me is to buy older machines )and got a 120volts input variable frequency drive(VFD) from Temco (the typical cheap volts hrz FM50 model) I use this to run the press 3 phase motor on the older Delta 17" . The older Delta is so much better a press than the newer delta I had I can't believe i went so long. 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. Yes I know can you believe I got $180 for the newer press:thumbup:


What the up grade gave me was 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 or machines with small motors.

I kept one other press the Jones and shipman from England and set it on the end of the Wadkin lathe as i did not use that end often(I can take it off if I ever need the length). My last problem will be what to do with the 2 buffalo's in the Q. I think I will have to sale them too.















made a video of the test run and found that the quill bearings were bad. but i had got all the functions to work.

http://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 so I ended up using a SKF and made a spacer to make up the space 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 a 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. I have the spindle running at about 7000 rpm at 120 hrzs setting on the VFD in the top pulley speed. Made a movie of it cutting you be the judge.

http://www.youtube.com/watch?v=eIEwVt3kswU


you see old is sometime better:clap:


jack
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Ever contact the power company and see if you can get a 3ph service?
 

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Discussion Starter #3
Ever contact the power company and see if you can get a 3ph service?
Ya
3 phase is on the line out front.

10 grande and a minimum power use bill plus some polls and a transformer to feed the house single phase.

I can run all the machines in the shop off the 10/30 hp RPC that is feed 70 amps single phase power. the VFD do the rest. I am limited to a 10 HP machines with this set up though.


jack
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Ya
3 phase is on the line out front.

10 grande and a minimum power use bill plus some polls and a transformer to feed the house single phase.

I can run all the machines in the shop off the 10/30 hp RPC that is feed 70 amps single phase power. the VFD do the rest. I am limited to a 10 HP machines with this set up though.

jack
English machines
You don't need single phase in your home.

Replace your home panel with a 3ph, put a 3ph pony in the shop.
 

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Discussion Starter #6
You don't need single phase in your home.

Replace your home panel with a 3ph, put a 3ph pony in the shop.
Hydro wanted the the house feed from the shop. The shop voltage was going to be 600 delta too. Plus i already had #3 in the ground running from the shop to the house.

In the end I'm glade i did not make the move. But that door is always open.

jack
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Hydro wanted the the house feed from the shop. The shop voltage was going to be 600 delta too. Plus i already had #3 in the ground running from the shop to the house.

In the end I'm glade i did not make the move. But that door is always open.

jack
English machines
Ahh, the last residential 3ph job I worked on was so close to the pole they didn't have to run 600 and install a transformer.

What size service were you looking at?
 

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Discussion Starter #8 (Edited)
Ahh, the last residential 3ph job I worked on was so close to the pole they didn't have to run 600 and install a transformer.

What size service were you looking at?
i was asking for 150 amps but i had to do a load calculation. I never went any further than that with Hydro. The load is your minim bill charge BTW.

As you Know residential power is subsidized by the government here in Canada. so this was the big factor for me.

jack
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i was asking for 150 amps but i had to do a load calculation. I never went any further than that with Hydro. The load is your minim bill charge BTW.

As you Know residential power is subsidized by the government here in Canada. so this was the big factor for me.

jack
English machines
Yep your monthly fee is substantially smaller for a smaller load, that's why you should tell them you only have a drill press and toaster oven in the shop. If you are a one man show and only use one machine at a time you sure don't need much power.

The residential three phase job I was working on years ago sure got some funny looks from the inspector...especially the kitchen 3ph outlet for the coffee grinder.
 

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Also the cost of three phase breakers alone can make you go broke.
 
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