Roof sunshade
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Shade your wintergarden from the sun. Interior edition.
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Updated at source:
Model information
- Source
- Printables
- Category
- Living Room
- License
- Creative Commons — Attribution — Noncommercial
Hardware for putting up shades with a movable piece of paracord.
For every line you want to put up you need:
- fabric
- paracord, I use one line each meter
- 1x holder-fix.stl for each 60cm paracord, plus one more
- 1x grommet for each 60cm paracord, plus one more
- 2x 608zz bearings
- 2x hooks
- 2x dowels (e.g. fischer duo)
- 2x holder-hook.stl
- 2x pulley.stl
- 4x pulley-buchse.stl (small or large hole)
- 1x sister, who is very good at tying knots
Punch grommets into fabric, put holder-fix through grommet, pull paracord through the holder-fix hole. Set aside the contraption.
Use the dowels to put the hooks up on the walls. Tie one end of the paracord (and all the remaining contraption) to the hooks on one side. Put up the holder-hook.stl components on the hooks on the other side and pull the paracord through. Pull the paracord to the first side and hook them up with holder-hook and tie the paracord together.
There you go.
I put a couple of varieties and the OpenSCAD source code into the uploads.
Print with PCTG (high heat resistance) at fine, but not ultra-fine resolution.
Concerning original tension: Measuring the printed part, the relevant interface is 4mm * 6mm, yielding a breaking force of approx 43N @ 64 °C. Assuming the height of the tensioned rope is around 100mm (0.1m) at 3.5m length the force against eacch fastener is around 0.5kg/(cos(86.73) *2) ~ 4.4kg (from angle: tan^-1(3.5/(2*0.1)) = 86.73 degree) or 44N. This means the holder will break slightly before 64 °C.
That's the reason I added 3mm to the interface, bringing up the breaking force to 64N.
Enjoy.