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Forum: Rails & Rollers Tue 03 July 2012, 08:39
Replies: 92
Views: 122,228
Posted By smreish
..Continuation of thought. I re-read the rail...

..Continuation of thought.
I re-read the rail post a few times last night with regard to the requirement of the angle iron rail being cut to the proper height for the capped rail system to work...
Forum: Rails & Rollers Mon 02 July 2012, 13:04
Replies: 92
Views: 122,228
Posted By smreish
Ron, Not to be difficult, but this site is...

Ron,
Not to be difficult, but this site is dedicated to MM fabrication and use.
The Use of Cap rails, or ground rails in the MM design - for the MM design - are proven and accurate when applied to...
Forum: Rails & Rollers Fri 15 August 2008, 15:59
Replies: 92
Views: 122,228
Posted By smreish
The rail sections are 6' long, thus we used 2...

The rail sections are 6' long, thus we used 2 sections.
We have offset them slightly to each other so no 2 rollers can ever occupy a joint line at the same time.
This was easier on the Y-axis - we...
Forum: Rails & Rollers Wed 06 August 2008, 17:34
Replies: 92
Views: 122,228
Posted By smreish
Gerald. The inside corner appears to be nice and...

Gerald. The inside corner appears to be nice and sharp. I will let you know after Nils has finished his Drill-lots-of-holes homework. :)
Forum: Rails & Rollers Tue 05 August 2008, 18:36
Replies: 92
Views: 122,228
Posted By smreish
2-1/2 x 1 x 1/4 T6 aluminum angle just so happens...

2-1/2 x 1 x 1/4 T6 aluminum angle just so happens to be a non-stock item in these parts of the southeast. I have no idea why. My suppliers - all 3 major - stock 2 x 1 x .25....but nothing in 2.5/ ...
Forum: Rails & Rollers Tue 05 February 2008, 18:51
Replies: 92
Views: 122,228
Posted By smreish
caprail vs. MM steel rail ? Pro's and Con's

Robert,
I for one, actually made a mock-up of the cap rail and alum angle prior to deciding to use the MM rail system. I like both options for the right reasons. The next machine I build, and it...
Forum: Rails & Rollers Tue 30 October 2007, 15:02
Replies: 92
Views: 122,228
Posted By smreish
My point about the cap rail is you can install it...

My point about the cap rail is you can install it like a scarf joint on crown molding. Just cut it at a 45 and marry the two together to form a rolling joint. Very easy to do out of NON-hardened rail...
Forum: Rails & Rollers Tue 30 October 2007, 13:19
Replies: 92
Views: 122,228
Posted By smreish
Forum, My experience is that a butt joint on a...

Forum,
My experience is that a butt joint on a linear machine should be fine, but you should stagger the seam to alternate ends of the table so only 1 bearing (out of 4 on the gantry) will touch the...
Forum: Rails & Rollers Sat 06 October 2007, 06:59
Replies: 92
Views: 122,228
Posted By smreish
Gerald....so TRUE. Keep it to machined / extruded...

Gerald....so TRUE. Keep it to machined / extruded face and I have 1/2 a chance of getting something right on my first build.
Forum: Rails & Rollers Sat 06 October 2007, 05:25
Replies: 92
Views: 122,228
Posted By smreish
Dave, I can use steel and have access to all...

Dave,
I can use steel and have access to all the tools to deal with it. I was just keen to using the Architectual alum angle due to the nice crisp (and almost always) straight 90 deg flange to wall...
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