Long term review of the G4003 Lathe and just a lazy day in the shop. Also quick bonus footage of swinging a 3617 mill around.
Пікірлер: 30
@tomcook58135 жыл бұрын
a good tip on putting the chuck om, bring your tailstock to the chuck and pet it press lightly against the chuck while tightening the chuck mounting bolts. It will hold it til everything is tight and keep it square.
@douglasthompson27403 жыл бұрын
Have you looked in the bottom of your headstock? I did all the specified oil changes and break ins when I got my G4003G new in '16 and since but did not look in the bottom until yesterday. There is not that much time on my machine as the past three years I have been occupied building my large shop addition by myself. Anyway when I drained it I thought I would check the bottom for metal wear.and was I surprised! I had seen another KZfaq recently where the cross slide was full of machining waste. Well you guessed it my lathe looked like solid sparkles on the bottom. You have to mop it up out of there as the brilliant design put the drain plug (which is also designed to dump all over the back of the headstock!!) up about a half inch and there is no slope in the casting to channel it to the drain. So all that metal from day one stays in the headstock as it goes to the very bottom and a simple oil change will not get rid of it. I poured several gallons of diesel in there and use a paint brush to swish it up as it was draining. Then rags to mop it all out. Grizzly just doesn't want to fight the crappy chinese quality control I guess. How much does it take to clean the machined parts before assembling them?? It is outrageous that the design doesn't even allow the crap left in to be drained out. They also used the cheapest of heavy orange/red paint that will dissolve in any good solvent. Brake Clean immediately started dissolving it. The most rudimentary of assembly skills seems to be totally lacking in the Chinese but they are always like that and importers promise quality control of their own in the factories yet that seems not to be true. Bearing are not going to last long under heavy use with that swarf left in the machine. It doesn't seem to matter whether you buy a 'Brand" name or the cheapest of imports they all come this way from what I have seen from owners on KZfaq. Seems there must be a Chinese law mandating crappy products and sabotage for exports?? I have to put the load on the big importers as they can specify the design and quality control before bringing them to market here in the States. Grizzly for one seems to have grown so fast and reaped such profit that they have left all their old quality control and customer service behind. They like Jet were at one time a source of quality cheap machines for the little guy to start with or the home shopper. Bottom line: Any more I would seriously advise a total machine clean up in detail before ever applying the power to any import tool. If there is a choice at the price point stay away from the Chinese!
@ShaneBurrell13 жыл бұрын
Yes. When I bought the machine way back in 2000's same problem. Comes with any machine manufactured outside USA.
@charlieromeo76633 жыл бұрын
I’ll share a recent experience with my G4003 gunsmith lathe. It recently locked up on me while in use. We trouble shot the issue and found that the input shaft on the quick change gearbox locked up and also sheared the key on the 16/32 tooth combination gear. Ultimately the problem was caused by inadequate lubrication, which i routinely do on this and all machines. The problem is that if you think a squirt or two of oil in the tagged oil holes on the gearbox itself are enough, it just isn’t true. Those holes lead to a tray that is cast into the top of the gearbox housing. Inside this tray are additional lube holes that eventually make their way downward to the rotating gears and shafts inside the gearbox. Blah, blah, blah, but the moral of the story is when lubricating your machine, squirt at least 2 to 3 ounces of lube in this section of the machine to fill that tray. If you don’t see any dripping from the selector shafts into the chip pan, you likely don’t have enough oil in there. Good luck.
@ShaneBurrell13 жыл бұрын
Thanks! Great information.
@rst77886 жыл бұрын
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.
@GarryFullerSr7 жыл бұрын
Shane, looks like a nice little shop. Still Love to Play around in my shop. A couple things to watch out for, the strings off of your pieces try not to grab with your hands. They are sharp and will catch sometimes and cut you. Also the chuck key, get in the habit of always removing it. Enjoy your Tools.
@ShaneBurrell17 жыл бұрын
I haven't got bit by AL yet but back in my younger days I did grab some stainless. Ouch.
@moleklm6 жыл бұрын
watching your video I had the same problem you have with the cross slide handle dropping down changing the setting. if you have the manual it is part number 530a that needs to be tightened.
@ShaneBurrell16 жыл бұрын
Thanks for the info. I have tightened 530a and the problem has went away.
@DanielColeff Жыл бұрын
Safety glasses?? I can't show this to my students. Or maybe I should for that reason.
@ShaneBurrell1 Жыл бұрын
Use it how you see fit.
@zuki12167 жыл бұрын
Thanks for the vid. You may have sold me on spending the extra $ instead of a smaller lathe like the 752. Was wondering how long term they held up. You seem to use yours more than I initially would be.
@ShaneBurrell17 жыл бұрын
Mine has run flawless for years. I kinda wish at times I had gotten the biggest lathe that fits the space. Maybe one size larger. A lot depends on what your working on but this size or one large seems to be ideal for most.
@Matthatlungoc2 жыл бұрын
which mechanism causes the spindle to stop very quickly at high speed without applying the brake. thank you
@ShaneBurrell12 жыл бұрын
There is no foot brake on this machine.
@trialnterror6 жыл бұрын
What did you lift your lathe with? Engine hoist? Fork lift ?
@ShaneBurrell16 жыл бұрын
Engine hoist. Attached to lathe per instructions in manual.
@trialnterror6 жыл бұрын
Shane Burrell I just used a engine hoist to move it out of a lady’s garage and then used a forklift to get it on my trailer then reverse to get it off!
@goodboyringo97163 жыл бұрын
WOW! America makes an oil can, I can't believe it.
@ShaneBurrell13 жыл бұрын
Good ol Dutton-Lainson Company
@KyHighlander597 жыл бұрын
When is the last time you cleaned the chips out of that chip tray?
@ShaneBurrell17 жыл бұрын
Usually end of each day's use.
@59KYHighlander7 жыл бұрын
you had a nice big pile there at the beginning. LOL
@robertmccully27927 жыл бұрын
I have a question. (I have the same lathe) Have you figured out how to not speed up the feed rate when making RPM changes. In other words at a high Rpm the feed rate is way to fast.
@ShaneBurrell17 жыл бұрын
I'll have to check but see if you are in feed mode or thread mode.
@robertmccully27927 жыл бұрын
Shane Burrell Good question-- i think i figured it out. The chart on machine is 1 revolution or 1 rpm i believe. So if the chart says 0.0311- it would take 32 revolutions to travel 1 inch in feed mode. In gear mode that is 4 threads per inch. So 32 divide by 4 =8 so the feed reduction is 8 to 1-- the cross feed on chart on feed is 0.0105 about 1/3 more reduction more than longitude--so that is 96 revolution per inch on cross feed. so if the rpm is 96 the crossfeed should travel 1 inch per minute.. but if your running at 1000 rpm that would be ten inch per minute...too fast for a cross feed---Hmmm- i will check that out tomorrow see if this all make sense-- Thanks