Steve Blackmore and Marchant Dice may have gotten their units in a bit of a muddle. Ball screw tolerances in millionths of a meter per 300mm according to my...
... Acme screws are soft and generally not heat-treated at all, ballscrews are case heat treated to 65-72 rockwell and then precision ground to tolerance.....
... McMaster Carr sells 5/8" at $1.27 an inch and single race nuts for between $25 and $35 USD. they do not sell the AB nuts, so you would have to make your...
With the "point of contact" reasoning, plain bushings should out-perform any ball bearing. And as long as oil is present, nothing should ever wear out. Still...
... 72 Rockwell C scale? Yikes, that's HARD! ... Actually, the wear is not abrasion but fatigue, due to the compressive loading of the balls. Eventually, the...
In a message dated 7/1/2006 9:12:37 A.M. Central Daylight Time, ... McMaster Carr sells 5/8" at $1.27 an inch and single race nuts for between $25 and $35...
Is there any place that sells Gecko drives that takes Pay Pal ? -- Ron Kline American Precision Ceramics .. (Industrial ceramics) Central Ky. [Non-text...
Ron, If you need G202 drives, I have some in stock. Bob Campbell Bob Campbell Designs www.Campbelldesigns.com Mach 2/3 breakout boards Relay boards Spindle...
I just spent 20 minutes on your site and did not find them . Am I blind or are they not listed ? -- Ron Kline American Precision Ceramics .. (Industrial...
Ron, They are not listed. I am using them in my new enclosure. How many do you need? Bob Campbell Bob Campbell Designs www.Campbelldesigns.com Mach 2/3...
... Well I've got a price on a pair of Kerk screws as an alternative for my 450mm sq router table. £66 each for a 600mm long M12x1.25. Having followed the...
Hi Bob Just 2 for now , I'll need 2 for the next machine but that is about 4 weeks away . Email me at ronkline@... and I can give you a list of what I...
That's great ! I need this set now , but I can order the next set from you . I always like talking to your wife anyway ( really nice lady ) -- Ron Kline ...
Here is the ad Stepper kit pricing. Items may be bought separately. G201/.G210 case $100 Db25 with screw terminals $30 4 module heatsink $25 Connector kit $30 ...
Hi Lester, Ballscrews can take a surprising amount of dirt. I have seen quite a few commercial routers with only very basic wipers on the nut to keep out the...
Hi My father passed away about 3 months ago leaving a workshop full of tools. Lathes milling machine (converted to cnc). He was a rc modeler for 30 years and...
Sorry for the multiple list posting, but it is a question concerning CNC machines, fabrication, and precision. I have posted a picture that I drew which should...
You need to get a precision level. They are very accurite. Mine has a sensitivity of .0005" per foot. Or a surface plate that the frame will sit on. ... ...
One method (that I plan to use) is to make a fixture with ball-bearings on a vertical rod. This is like a big blanchard-type grinder, but lightweight. Make or...
You need a Precision Machinists' Level like this; http://catalog.starrett.com/catalog/catalog/groupf.asp?groupid=88 Another way is to use an autocollimator....
... thanks for the link, that's really handy. I actually own an autocollimator although it needs a new light source. I rescued it from certain doom but have...
Hi Tyson: I know and easy and low cost way of checking it to within a .001 at all four corners. You can get it within the width of a line (.005-.015) with...
Precision levels are the best way. look at how they do pool tables. LittleMachineShop and Enco both sell levels for under $100 for this exact purpose. ...
I understand that you can splice ACME screws by facing the cut ends, center drilling, reaming, align the threads and join with a dowel pin and loctite. The...
