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Step 4Prepare the rods
Cut each 36” threaded rod in two; now you have four 18” rods.
Round off the cut ends with a file.
Check the threads of the cut ends with a nut.
(You may have to apply the nut onto the opposite end, then run it all the way up and off of the newly cut end.)
Mark each rod at 1” from each end.
Cut four 16” lengths of the Tygon tubing.
Slip the tubing over each rod.
Use a 1” scrap of tubing to protect the exposed threads in the bending process.
Bend one end of each rod at the mark to about 20° UP from straight.
(Slip the short tubing piece over the end before clamping it in the vise or pliers. Keep the outer ¾” of the rod as straight as possible.)
Bend the unbent end of each rod, at the mark, to about 20° DOWN from straight.
(Bend it in the opposite direction from the first bend! Keep the outer ¾” of the rod as straight as possible.)
Thread two bolts onto each end of the rods.
Cut each 36” threaded rod in two; now you have four 18” rods.
Round off the cut ends with a file.
Check the threads of the cut ends with a nut.
(You may have to apply the nut onto the opposite end, then run it all the way up and off of the newly cut end.)
Mark each rod at 1” from each end.
Cut four 16” lengths of the Tygon tubing.
Slip the tubing over each rod.
Use a 1” scrap of tubing to protect the exposed threads in the bending process.
Bend one end of each rod at the mark to about 20° UP from straight.
(Slip the short tubing piece over the end before clamping it in the vise or pliers. Keep the outer ¾” of the rod as straight as possible.)
Bend the unbent end of each rod, at the mark, to about 20° DOWN from straight.
(Bend it in the opposite direction from the first bend! Keep the outer ¾” of the rod as straight as possible.)
Thread two bolts onto each end of the rods.
(Each pair of bolts will be locked into position; the exact positions will be determined later.)
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Thanks for your interest in this project. You might also like:
http://www.instructables.com/id/New-Improved-Portable-Paperless-Digital-Copy-M/
With respect to the nuts and rods, you both missed my point. Most of the time, with careful file work, the bolts will go on easily without doing anything special. I was trying to save people the effort of running the bolts the full 18 inches up 4 lengths of rod materal -- 72 inches of nut-spinning with a single bolt on each, 144 inches of nut-spinning with the double nuts! (I know, this would be easier by turning the threads in a drill while holding on to the nuts.)
Thanks again for your detailed suggestions.