hoz53
Gold $$ Contributor
ok thanks
Grizzly G509G Lathe
- Thread starter tonyb
- Start date
urbanrifleman
Site $$ Sponsor
What do you mean changing gears?
Look at the table for what you have to select on the gearbox to get 8,16,25,28 TPI threads on that machine. In addition to the gear box selections it requires you to actually change some of the end gears out.
Doing it once in a while isn’t too bad, but the grizzly machines appear to be set up for not changing gears for most metric threads, but you -do- have to change gears for most imperial.
I didn’t realize this when I bought my 0750G used. For the price I can live with it, but if I was buying new I wouldn’t consider a machine like this, certainly not a higher price point.
This is the one major changes that the precision matthews machines make afaict, they change out the gearing so that you don’t have to change gears for most imperial, but instead you do for metric.
Doing it once in a while isn’t too bad, but the grizzly machines appear to be set up for not changing gears for most metric threads, but you -do- have to change gears for most imperial.
I didn’t realize this when I bought my 0750G used. For the price I can live with it, but if I was buying new I wouldn’t consider a machine like this, certainly not a higher price point.
This is the one major changes that the precision matthews machines make afaict, they change out the gearing so that you don’t have to change gears for most imperial, but instead you do for metric.
urbanrifleman
Site $$ Sponsor
That's not good. You mean you have to get out tools and change gears?
Last edited:
Dusty Stevens
Shiner
And gojo. They are always a greasy mess
mine is just two allen wrenches, no gear puller or anything. it’s not hard, or even that time consuming, just an annoyance.
pdhntr
Silver $$ Contributor
Good grief
. If they are a greasy mess than you should change what you are doing. They only need a little drizzle of oil occasionally when they are used.
And changing gears is a half a cup of coffee.
I think some of you guys are getting soft.
Urbanrifleman,
The above is the gears of a PM 1440 BV. I REALLY like the variable speed and the DRO. The grizzly that you referenced isn't variable. Below is the gear change sequence for the different threads.
It is very possible that Precision Mathews has changed the gearing since my lathe was made (about 14 years ago) so that imperial threading would require less gear changes. See the metric doesn't require quite as many changes.
Jim
. If they are a greasy mess than you should change what you are doing. They only need a little drizzle of oil occasionally when they are used.And changing gears is a half a cup of coffee.
I think some of you guys are getting soft
.Urbanrifleman,
The above is the gears of a PM 1440 BV. I REALLY like the variable speed and the DRO. The grizzly that you referenced isn't variable. Below is the gear change sequence for the different threads.
It is very possible that Precision Mathews has changed the gearing since my lathe was made (about 14 years ago) so that imperial threading would require less gear changes. See the metric doesn't require quite as many changes.
Jim
Last edited:
Walt Krafft
Gold $$ Contributor
I guess I am lazy and spoiled. My Acra Hardinge tool room lathe has electronic threading. Any pitch, no gears, no noise.
xr650rRider
Silver $$ Contributor
For $30,000, I think I'll keep moving levers.
pdhntr
Silver $$ Contributor
It was all in fun Walt, .........I am sure you aren't lazy and spoiled. Very nice lathe.
Jim
xr650rRider
Silver $$ Contributor
There are some DIY electronic lead screw conversions out there though. If I did more metric on PM-1340GT, it might be worth exploring.
urbanrifleman
Site $$ Sponsor
My friend who is a gunsmith just said I can buy his like brand new G0824 with DRO, as he like his non DRO G0824 better....
The LORD certainly does work in my life when I least expect it.
Wow.
The LORD certainly does work in my life when I least expect it.
Wow.
LVLAaron
Gold $$ Contributor
Clough42 has a pretty cool "electronic lead screw" kit.
It's a really interesting project if you're not afraid of small electronics.
I believe it is Taiwanese. Since Shiraz bought the rights to the SBL brand, he has been sourcing them from Taiwan.
What's not on PM website is this, PM1440TV. 9 inch bed instead of the 1440GT, and the 1340GT, and 1236T, which all share the same bed width, a little over 7 inches. 5HP Motor with VFD, and DRO Pros DRO. It has a solid cast iron base, instead of sheetmetal. All these T suffixed lathes from PM come Liang Dei, the same manufacturer used by Eisen.
Last edited:
hoz53
Gold $$ Contributor
Man how do you guys keep your shops so clean
butchlambert
Site $$ Sponsor
NEZ has a wife. Her only stipulation was to be able to park her car in the garage nightly. You do what you have to do to keep Bona happy.
Ahaha - I’ve been to his shop... what year did that happen last??
butchlambert
Site $$ Sponsor
Confused, are you saying his shop was dirty or?
Upgrades & Donations
This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.