should I chop up these MASSIVE linear rails?

[KTP]

Hi guys,

I have four massive linear square rails each about 2 inches wide, 3 inches tall and over 8 feet long. They each have two giant carriages (about 7 inches long, 3 inches wide or so). They were all brand new in wrapping, but the idiots at Boeing had stored them somwhere damp and there is some surface rust or something in a few places (but at least on 3 of them not in any of the travel contact points).

I want to sell or trade these since I will be moving soon and am abandoning the idea of building a 4x8 router with them. I am toying with the idea of chopping them down into smaller sections so they could be easier to ship. At over 8 feet I think each rail is around 80 pounds or more!

Alternatively, if anyone in the Seattle area wants some cheap precision linear motion components...

I also have a 2 inch diamter 8' ground ballscrew and nut, brand new which is coated in oil and in a plastic sleeve. Last time I checked it was in excellent non rusted shape. Could work well with the rails...

[FandZ]

Pictures are worth a thousand words. I'd try to sell them as is before you brake them up. You may really help someone out.

Originally Posted by KTP Hi guys, I have four massive linear square rails each about 2 inches wide, 3 inches tall and over 8 feet long. They each have two giant carriages (about 7 inches long, 3 inches wide or so). They were all brand new in wrapping, but the idiots at Boeing had stored them somwhere damp and there is some surface rust or something in a few places (but at least on 3 of them not in any of the travel contact points). I want to sell or trade these since I will be moving soon and am abandoning the idea of building a 4x8 router with them. I am toying with the idea of chopping them down into smaller sections so they could be easier to ship. At over 8 feet I think each rail is around 80 pounds or more! Alternatively, if anyone in the Seattle area wants some cheap precision linear motion components... I also have a 2 inch diamter 8' ground ballscrew and nut, brand new which is coated in oil and in a plastic sleeve. Last time I checked it was in excellent non rusted shape. Could work well with the rails...

[LazyMan]

I would not cut them. Long rails are much harder to come by these days and people who need them will pay significantly more for them.

[Switcher]

Don't cut them. You'll get more $ As Is.

Post a photo & asking price. If you cut them in 1/2, you'll still be short on carriers.


.

[KTP]

Here are the specs on the ballscrew and the linear rails:

Ballscrew:

Manufacturer: Barnes Ind. Inc. Madison Hts, MI
Length overall: ~104"
Length of screw: ~86"
Length of nut: ~5.5"
Screw diameter: ~2"
Journal diameter: 1.5" and then a long 1.2" down to the motor shaft
Motor shaft: 0.875"
Pitch: 0.4"?

Linear Rails (4 of them):

Manufacturer: Tsubaki Japan
Length overall: ~101"
Height: 48mm
Width: 53mm
block length: ~190mm
block width: 100mm

And here are the pics:

[Crevice Reamer]

Wow! that is one big a$$ ball screw! It's a joy to behold and the pics are a work of art.

CR.

[FandZ]

wOWzers... You should sell them as is. Man you are going to make someone very happy.

[Jack000]

where did you even get these? They must have cost a fortune!

[KTP]

They were not as much as you might think. I got them from Boeing Surplus a few years ago. I think I paid $700 for the 4 rails plus a bunch of other smaller rails, but when I bought them they were new in the box wrapped in original manufacturer oil paper and packaging. I thought I was getting a steal until I got home and found out that they had been evidently stored outside for a number of days (what a damn shame). Still, most of them are still in useable condition, and two of the huge rails only have a few spots on the bottom.

The ballscrew was new in the box and stored inside, so was in pristine shape. I think it was $200, with an original pricetag of over $4000.

Some amazing deals could be had at Boeing Surplus (out of business now though).