Light Screen: Difference between revisions
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=Straightforward Steps= | =Straightforward Steps= | ||
Lay a 4' and 6' tubes | Lay a 4' and 6' tubes like a rectangle on a table, the 6' enclosing the 4' | ||
Speed square the corners, tack weld, then weld the connections | Speed square and magnetic-hold the corners, tack weld, then weld the connections | ||
Clamp (C-Clamp) a 3' tube vertically (check with speed square) at the edge of the table | |||
Move the rectangular frame into the vertical tube, tack weld and weld. | |||
Clamp and weld the other 3' tube similarly. | |||
=Steps= | =Steps= | ||
Revision as of 02:45, 16 December 2012
Introduction
Design
Use rectangular-ish frame made of 4 square tubes welded at the corners.
Use small C-clamps to hold light curtain to frame.
Weld 2 additional long square tubes at the bottom corners for standing support parallel to the ground surface but perpendicular to the frame plane.
Mount 4 castors near the ends of the long square tubes for mobility.
Materials
14gauge x 1" x 1" steel square tube of following lengths:
90cm x2 as ground tubes - drill a hole for mounting the castors 3cm from ends, 1" from width.
150cm x2 as vertical tubes - to be welded to the middle of the ground tubes
100cm x2 as horizontal tubes - to be welded to the top and bottom of the vertical tubes
4 castors (single bolt mounting style)
180cm x 100cm area translucent UV/IR protection screen
3" opening C-Clamp x6
Straightforward Steps
Lay a 4' and 6' tubes like a rectangle on a table, the 6' enclosing the 4'
Speed square and magnetic-hold the corners, tack weld, then weld the connections
Clamp (C-Clamp) a 3' tube vertically (check with speed square) at the edge of the table
Move the rectangular frame into the vertical tube, tack weld and weld.
Clamp and weld the other 3' tube similarly.
Steps
Steel square tubes! 1" x 1" square, 14 gauge thickness (approx 0.06" or 1.6mm). Cut to lengths: 3' x2, 4' x2, 6' x2
Lay the ground tubes and vertical tubes on a flat working surface. Position the tubes for welding- the vertical tube should be at the middle of the ground tube- position tolerance +/- 3mm (1/8"). Use a measuring tool to ensure perpendicularity of vertical tube to ground tube. Make 2 tack welds on each of the 2 side edges between the ground tube and vertical tube. Remeasure perpendicularity. Tack the top and bottom edges. Perform full weld.
Lay the T-frames flat on a table with the short tube vertical off the side of the table. Lay the long tubes perpendicular to the T-frames. Check with a speed square. Tack weld and weld.
Mount the T-frame and super T-frame vertically to the side of a table. clamp the horizontal tubes to the lone T-frame and tack weld + weld.
Cover the rectangular frame with the protection screen and mount with 4 C-Clamps at the corners and 2 C-Clamps at the middle of the top and bottom horizontals (warning: make sure that the non-rotating end of the C-Clamp is compressing the screen- otherwise the compressed rotation can damage the screen)
Drill the castor holes on the ground tubes. Position tolerance: +/- 3mm (1/8"). Install the castors
Raise the light screen to its functional orientation.