Author Topic: Lathe electrics  (Read 320 times)

f350ca

Re: Lathe electrics
« Reply #15 on: November 23, 2018, 09:08:25 AM »
I bought a VFD for the drill press from these guys.
https://www.automationdirect.com/adc/home/home
No problem shipping to Canada and great tech support.
The motor on the drill press is two speed, the tech said no problem having a switch between the VFD and motor as long as you don't switch it while the motor is running. Been working great.
They have 3 lines, I bought the GS2 but they're all out of stock, no idea why, maybe dropping that line.

Greg

Carpenter84

  • Hero Member
  • *****
  • Posts: 1046
  • Total likes: 37
  • Karma: +10/-3
  • Bowmanville, Ontario. Hobbies, hobbies, hobbies.
Re: Lathe electrics
« Reply #16 on: November 26, 2018, 09:34:05 PM »
Shawn

First 9x42 column mill,
Enterprise 10x28 lathe,
Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
Fully stocked wood shop.

f350ca

Re: Lathe electrics
« Reply #17 on: November 26, 2018, 10:04:24 PM »
Should work Shawn, can't recall why I went with the GS2. The drill press doesn't get a lot of use but its functioned flawlessly.
Set up was easy even for a computer challenged lad like myself.

Greg

Carpenter84

  • Hero Member
  • *****
  • Posts: 1046
  • Total likes: 37
  • Karma: +10/-3
  • Bowmanville, Ontario. Hobbies, hobbies, hobbies.
Re: Lathe electrics
« Reply #18 on: November 26, 2018, 10:51:11 PM »
Ok ok. Good news.
Shawn

First 9x42 column mill,
Enterprise 10x28 lathe,
Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
Fully stocked wood shop.

Carpenter84

  • Hero Member
  • *****
  • Posts: 1046
  • Total likes: 37
  • Karma: +10/-3
  • Bowmanville, Ontario. Hobbies, hobbies, hobbies.
Re: Lathe electrics
« Reply #19 on: November 26, 2018, 11:03:15 PM »
Okay. I bought it! My wife is gonna fliiiippppp..... 😨😨😨
Shawn

First 9x42 column mill,
Enterprise 10x28 lathe,
Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
Fully stocked wood shop.

Carpenter84

  • Hero Member
  • *****
  • Posts: 1046
  • Total likes: 37
  • Karma: +10/-3
  • Bowmanville, Ontario. Hobbies, hobbies, hobbies.
Re: Lathe electrics
« Reply #20 on: November 29, 2018, 08:41:28 PM »
Awww it's so small and adorable!
Shawn

First 9x42 column mill,
Enterprise 10x28 lathe,
Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
Fully stocked wood shop.

f350ca

Re: Lathe electrics
« Reply #21 on: November 29, 2018, 08:47:43 PM »
Now you need an enclosure for it. Cut this one on the plasma table and bent it up.

Carpenter84

  • Hero Member
  • *****
  • Posts: 1046
  • Total likes: 37
  • Karma: +10/-3
  • Bowmanville, Ontario. Hobbies, hobbies, hobbies.
Re: Lathe electrics
« Reply #22 on: November 29, 2018, 08:57:24 PM »
I have several enclosures of various sizes laying around. What I don't have is some nice wall space like that to hang it in a visible area. Nor do I have a plasma table to neatly cut out the hole. I'll try it on the mill but last time I tried that it cost me a couple small mills.
Likely just cut it out with a grinder and polish the edges.
I'll be reading the book soon to figure out if I'll be able to use my existing control panel.

Also, I got the bearings for the motor today. Now all I need is the time to put it all together. And see if the motor even works... I haven't had a chance to meter out the poles to see if the motor is fried. I found the motor and never had any way to test it.
Shawn

First 9x42 column mill,
Enterprise 10x28 lathe,
Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
Fully stocked wood shop.

pep

Re: Lathe electrics
« Reply #23 on: November 29, 2018, 10:03:05 PM »
"it's so small and adorable! " that's hilarious, my wife calls our cat adorable!

You can always draw the opening, drill many holes, knock it out and dress the opening. File, grind, or mill to dress.

@greg .... hey good idea the chalk board. Thinking I need to do something like that.. great way to brain storm !!!


Pep

Carpenter84

  • Hero Member
  • *****
  • Posts: 1046
  • Total likes: 37
  • Karma: +10/-3
  • Bowmanville, Ontario. Hobbies, hobbies, hobbies.
Re: Lathe electrics
« Reply #24 on: November 29, 2018, 10:18:21 PM »
Hahaha. Its not a frequent word in my vocabulary.
Shawn

First 9x42 column mill,
Enterprise 10x28 lathe,
Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
Fully stocked wood shop.

Carpenter84

  • Hero Member
  • *****
  • Posts: 1046
  • Total likes: 37
  • Karma: +10/-3
  • Bowmanville, Ontario. Hobbies, hobbies, hobbies.
Re: Lathe electrics
« Reply #25 on: December 01, 2018, 07:30:00 PM »
It's alive!!!

Pressed the new bearings on, had to move the fan since it was rubbing. Just pressed it up a bit. No more rubbing. Spins decently by hand.
The vfd was easy to set up. Just with factory settings motor runs. Kinda noisy, frequency noise. That whirring noise. Tolerable tho. Just happy it runs. I think the motor plate says it's 1140 rpm. Which is odd. But it's hard to read. I could be wrong. I'll point the tach at it next time I have some time.
If it's only 1140, I may have issues with speed vs torque if I have to play with the pulley sizes to get a decent spindle speed.
Changing the frequency on the vfd to 400 is a bit dicey. Only three options as far as I can see. 50-60-400. At 400 the speed control is super touchy. But I need to read the manual.
If it's 1140, I certainly think this motor will suffice for now till I find a better motor.

It looks like I can keep using my existing control panel, but I'll need to use most of my existing DC controller system too. Just replacing her DC driver with the vfd. Because the power controls for the vfd are fwd/off, rev/off. I'd need a barrel type switch. My control panel is non latching momentary switched. So the small timer controller that the momentary switches are setup on can still be utilized. It controls two relays will activate the fwd/rev with a delay so both fwd and rev cannot be pressed at the same time or switched too quickly potentially damaging the motor or vfd. It's the systems fail safe.

More later.
Shawn

First 9x42 column mill,
Enterprise 10x28 lathe,
Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
Fully stocked wood shop.

Carpenter84

  • Hero Member
  • *****
  • Posts: 1046
  • Total likes: 37
  • Karma: +10/-3
  • Bowmanville, Ontario. Hobbies, hobbies, hobbies.
Re: Lathe electrics
« Reply #26 on: December 02, 2018, 02:53:46 PM »
I went through all the parameters of the vfd and have it setup  and tested to make sure it works with my potentiometer and switching system. It will work fine.
The motor speed is in fact 1140, but at 65hz runs about 1233. I'll see what my spindle speed works out to later. I can always find another motor, but as long as this 1hp is torquey enough, I'll be fine. Better than before anyways. I never run upwards of the 2000 rpm this lathe is supposed to do...

This motor however, has that mounting style where the foot clamps onto two bosses on the spindle ends. Usually free to twist around... that frame is missing... so I'm making my own.
Cleaned up some aluminum stock to size, bored out a hole with some drills and my boring head. I'll tap some set screws in there next time.
Then I'll mount a plate on the bottom between the two. That's it.
I also had to make a key as I didn't have one small enough. Just milled down some larger key stock. So now I have a sheave to fit as well.

Lots more to do.
Shawn

First 9x42 column mill,
Enterprise 10x28 lathe,
Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
Fully stocked wood shop.

Carpenter84

  • Hero Member
  • *****
  • Posts: 1046
  • Total likes: 37
  • Karma: +10/-3
  • Bowmanville, Ontario. Hobbies, hobbies, hobbies.
Re: Lathe electrics
« Reply #27 on: December 02, 2018, 09:01:09 PM »
Had some time to do a bit more machining on the brackets.
Tapped set screw holes to grab the bosses on the motor. And there's tapped holes on the bottom to screw the plate in.
The photo gives the idea... I'll cut the plate to size another day.
Shawn

First 9x42 column mill,
Enterprise 10x28 lathe,
Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
Fully stocked wood shop.

Carpenter84

  • Hero Member
  • *****
  • Posts: 1046
  • Total likes: 37
  • Karma: +10/-3
  • Bowmanville, Ontario. Hobbies, hobbies, hobbies.
Re: Lathe electrics
« Reply #28 on: December 07, 2018, 08:41:26 AM »
One motor mount complete.
I'll drill the mounting holes once I know the hole pattern on the lathe. Another day.
Shawn

First 9x42 column mill,
Enterprise 10x28 lathe,
Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
Fully stocked wood shop.

4GSR

Re: Lathe electrics
« Reply #29 on: December 07, 2018, 09:08:14 AM »
Over time, your motor is going to twist in that cradle.  The set screws are not going to be enough to stop it from doing so.  Of course if the set screws line up with the notches on the boss of the motor, that may hold it from twisting.  IF not, may have to add a torque arm to the motor to solidly secure the motor from turning or twisting.

Looking nice Shawn,

Ken
Ken