HEY JAY! Safety First! Rags, gloves, and long sleeved shirts are a big no-no around rotating machinery. They can catch and possibly drag you bodily into the machine. It would also be advisable to remove jewelry. (rings, wrist watches, necklaces, etc...)
See the Adam Savage video where he sheepishly admits using a rag to clean the lead screw and came very close to loosing a finger. He did tear a nice gash in it.
Good to see this, I'm making a purchase on a G0602 in about a month. Basically the same lathe and everything about the break-in and setup should be the same. Thanks so much for the Video.
I bought the G0720 Heavy Bench mill when they moved out of PA. $3000.00+ mill, in 9/15, used maybe eight hours in that time frame, milled aluminum only. I now get a ERR message when I try to run the drill motor...they now want almost $400.00 for a new controlo board that must install. NO more Grizzly for me.
That loud noise is being generated by a high speed blower that cools the drive motor. The speed of the drive motor is controlled by a variable frequency drive and at low motor speeds the internal fan in the drive motor won't produce enough air flow to keep the motor cool. Thus the need for a separate high volume blower
Very nice video! Covers just about everything I wanted to know about the G0752. Just to make sure I've got it....speed of the chuck is controlled by the variable speed dial and adjustment of the belt on the pulleys for Low, Med & Hi ranges, and speed of the lead screw (it think that's the name) is by the 2 large knobs (I II III & A B C) along with different combinations of toothed gears?
I've got 1/4", 5/16", and 3/8". Use smaller bits for finer work and larger bits for bigger work. I can't imagine this machine could ever take advantage of 5/8" bits.
Jay found this and thought of your lathe... thought it may be helpful as i believe your lather came with this number pad -> th-cam.com/video/LUR6wmR6zPE/w-d-xo.html
Hey! Cool! I had no idea what that gizmo was. Thanks for sharing that link. I'll have to think about making that change (not that using the default knob is all that bad, though).
Glad you found it useful :) Also explains why there is 10 or 12 turns of the speed dial from high to low... to prevent voltage feedback from heavy arbor spinning down producing current in motor winding... hence the brake resistor... Anyways have fun with your lathe... It's one I'm seriously considering ;)
Don't know if you have worked it out now or not, but the green button will start spindle and your black forward/reverse knob is a mechanical gear change. So what your doing is starting lathe out of gear (motor spins up to dialect speed but tacko shows zero as the spindle isn't in gear.) and then you shift into gear with motor running. This is hard on the forward/reverse gearbox and could really damage it. (Same as a car, you wouldn't put it straight in gear without the clutch in.) so for startup always leave it in forward and reset your emergency stop and press green button so start it. I'm no expert on this but I've had a bit of experience on lathes and that's the startup process I was taught. Hope this helps.
Hi, Nick. I know there are all kinds of interfaces on machines built by different companies, so it's impossible to know them all. That's not how the Grizzly G0752 works. The black switch is definitely not mechanical; it's a simple three-position electric switch, and if you have it in forward or reverse when you turn on the lathe (which is what the green button does), then nothing will happen. After you power on the lathe (green button), the black switch must be switched to the forward or reverse position from the neutral position. That will start the spindle rotating.
Jay when you said about when the lathe gets to that certain speed it looks like it has stopped, this is due to the lathe has fluorescent light which is no good so you must have an old fashioned bulb.
![POLYCAT - ข้อความรูปยิ้ม [Music Video]](http://i.ytimg.com/vi/lBhIgPGCgbI/mqdefault.jpg)
HEY JAY! Safety First! Rags, gloves, and long sleeved shirts are a big no-no around rotating machinery. They can catch and possibly drag you bodily into the machine.
It would also be advisable to remove jewelry. (rings, wrist watches, necklaces, etc...)
See the Adam Savage video where he sheepishly admits using a rag to clean the lead screw and came very close to loosing a finger. He did tear a nice gash in it.
Such a comprehensive demo , thanks.
Good to see this, I'm making a purchase on a G0602 in about a month. Basically the same lathe and everything about the break-in and setup should be the same. Thanks so much for the Video.
MrJoeGarner Glad you found it useful!
I bought the G0720 Heavy Bench mill when they moved out of PA. $3000.00+ mill, in 9/15, used maybe eight hours in that time frame, milled aluminum only. I now get a ERR message when I try to run the drill motor...they now want almost $400.00 for a new controlo board that must install. NO more Grizzly for me.
That loud noise is being generated by a high speed blower that cools the drive motor. The speed of the drive motor is controlled by a variable frequency drive and at low motor speeds the internal fan in the drive motor won't produce enough air flow to keep the motor cool. Thus the need for a separate high volume blower
You should Peel off those Warning Stickers, they detract from the Aesthetics of the Machine. NICE !!
Very nice video! Covers just about everything I wanted to know about the G0752. Just to make sure I've got it....speed of the chuck is controlled by the variable speed dial and adjustment of the belt on the pulleys for Low, Med & Hi ranges, and speed of the lead screw (it think that's the name) is by the 2 large knobs (I II III & A B C) along with different combinations of toothed gears?
Sounds like you've got it all correct!
I'm thinking that the markings on your 'knob' are just to show which way to turn to increase or decrease the rpm, not to set those rpms.
Cracked up at 7:54!
I’m buying one next week. What size tooling would you recommend? 3/8, 1/2, or 5/8 on a series 100 quick change AXA tool post?
I've got 1/4", 5/16", and 3/8". Use smaller bits for finer work and larger bits for bigger work. I can't imagine this machine could ever take advantage of 5/8" bits.
Jay Philip Williams thank you!!!
Jay found this and thought of your lathe... thought it may be helpful as i believe your lather came with this number pad ->
th-cam.com/video/LUR6wmR6zPE/w-d-xo.html
Hey! Cool! I had no idea what that gizmo was. Thanks for sharing that link. I'll have to think about making that change (not that using the default knob is all that bad, though).
Glad you found it useful :)
Also explains why there is 10 or 12 turns of the speed dial from high to low... to prevent voltage feedback from heavy arbor spinning down producing current in motor winding... hence the brake resistor...
Anyways have fun with your lathe... It's one I'm seriously considering ;)
Don't know if you have worked it out now or not, but the green button will start spindle and your black forward/reverse knob is a mechanical gear change. So what your doing is starting lathe out of gear (motor spins up to dialect speed but tacko shows zero as the spindle isn't in gear.) and then you shift into gear with motor running. This is hard on the forward/reverse gearbox and could really damage it. (Same as a car, you wouldn't put it straight in gear without the clutch in.) so for startup always leave it in forward and reset your emergency stop and press green button so start it. I'm no expert on this but I've had a bit of experience on lathes and that's the startup process I was taught. Hope this helps.
Hi, Nick. I know there are all kinds of interfaces on machines built by different companies, so it's impossible to know them all. That's not how the Grizzly G0752 works. The black switch is definitely not mechanical; it's a simple three-position electric switch, and if you have it in forward or reverse when you turn on the lathe (which is what the green button does), then nothing will happen. After you power on the lathe (green button), the black switch must be switched to the forward or reverse position from the neutral position. That will start the spindle rotating.
does Grizzly offer a CNC kit for this lathe?
+gertzadik I don't know, but you could always look on their website, e-mail them, or call them.
Jay when you said about when the lathe gets to that certain speed it looks like it has stopped, this is due to the lathe has fluorescent light which is no good so you must have an old fashioned bulb.