PDA

View Full Version : What ball and screw



cncadmin
03-30-2003, 04:22 PM
can I use for my Micro Mark vertical mill? What BallScrew will fit it with-out alot of modification?

CNCnUtZ
04-02-2003, 12:08 AM
Thomson Saginaw 5/8" 5TPI worked well enough for me on my Grizzly(which is made by the same company).
Around $12 a foot for the ballscrews, and about $25 for the ballnuts. 0.0004" lead accuracy per ft.

Works great with G201's

Check out http://www.reidtool.com..........they keep em in stock(turned down ends or blanks)and super quick delivery.
Theyve got alot of linear motion stuff as well.

cncadmin
04-02-2003, 12:12 AM
How about 3/8" rods? Do you have any pics?

HomeCNC
04-02-2003, 11:06 AM
CNCnUtz.... You are off by one zero on your lead screw accuracy. it is .004 per ft. Right now Reed tool is out of 5/8" .200 pitch ball nuts and also some of the 5/8" ball screws :( I have been waiting for my order for over a week now.

CNCnUtZ
04-02-2003, 11:56 PM
Originally posted by HomeCNC
CNCnUtz.... You are off by one zero on your lead screw accuracy. it is .004 per ft. Right now Reed tool is out of 5/8" .200 pitch ball nuts and also some of the 5/8" ball screws :( I have been waiting for my order for over a week now.

Oops.......didnt mean to add the extra zero.sorry folks!

They are huh? that is unusual for reidtool indeed.
Ive yet to order anything from them in the past 2 years that they didnt have in stock for immediate shipment.

Oh well.........it'll be worth the wait. Cant find a cheaper price on those anywhere

cncadmin
04-06-2003, 03:14 PM
Originally posted by CNCnUtZ
Thomson Saginaw 5/8" 5TPI worked well enough for me on my Grizzly(which is made by the same company).
Around $12 a foot for the ballscrews, and about $25 for the ballnuts. 0.0004" lead accuracy per ft.

Works great with G201's

Check out http://www.reidtool.com..........they keep em in stock(turned down ends or blanks)and super quick delivery.
Theyve got alot of linear motion stuff as well.


I'm going to order them this week. BTW did you add thrust bearings to the X axis? I'm going to add thrust bearings to it.

CNCnUtZ
04-07-2003, 12:27 AM
I just used two deep groove bearings mounted against eachother in a custom bearing assembly I made, and left it free at the opposite end for now(along with the y axis..............its not like Ill be getting 100ipm rapids out of it, and I havent seen a problem with that config yet).

I didnt want to lose any more travel than necessary in the x.

And I didnt want to weaken the base casting, by removing enough of it to properly mount bearings, to fix the y ballscrew assembly on both ends. So it is mounted on only one end too.



I used the original thrust bearings that came off of the x axis on the Z axis ballscrew.

cncadmin
04-07-2003, 01:13 AM
You would'nt have any pictures of that would you?

cncadmin
04-07-2003, 02:13 PM
These guy's have them instock http://www.roton.com/index.jsp

CNCnUtZ
04-08-2003, 05:08 PM
Originally posted by CNCadmin
You would'nt have any pictures of that would you?

Not at the moment, as I dont own a camera and have to borrow one.

But Im working on it.

cncadmin
04-10-2003, 03:32 PM
Originally posted by CNCnUtZ
Thomson Saginaw 5/8" 5TPI worked well enough for me on my Grizzly(which is made by the same company).
Around $12 a foot for the ballscrews, and about $25 for the ballnuts. 0.0004" lead accuracy per ft.

Works great with G201's

Check out http://www.reidtool.com..........they keep em in stock(turned down ends or blanks)and super quick delivery.
Theyve got alot of linear motion stuff as well.


Did the ball nuts fit, or did you have to modify the bed? They are 1"sq and 1" thick.

CNCnUtZ
04-10-2003, 06:04 PM
I had to remove some of the saddle so it would fit nicely, but not much.

cncadmin
04-20-2003, 12:46 AM
Originally posted by CNCnUtZ
I had to remove some of the saddle so it would fit nicely, but not much.

I got the nuts and i'm thinking that I could knock off the corners on the nut to make it work. What do you think? I had them send bigger balls so this thing should have almost no backlash.