Ceiling Cap For 3 Hanging Lamps - Diameter 30 cm.

Ceiling Cap For 3 Hanging Lamps - Diameter 30 cm. Below is a shopping list with required items.

Shopping List

To connect the cap parts

• 6x M4 bolts, minimum length 12 mm excl. head.
• 6x M4 nuts.
• 12x M4 washers.

To connect the brace, ceiling cap with squeezer, cylinder and knob

• 1x M6 bolt (called center bolt from here on), length approx. 35 mm excl. head, that connects everything together.
• 2x M6 nuts for the center bolt: 1 to connect the bolt to the brace and 1 to be placed in the knob.
• 3x M6 washers to be used in combination with the 2 nuts and head of the center bolt (max. 18 mm in diameter).

To connect the brace to the ceiling

• 2x (5 mm in diameter) screws, washers and perhaps plugs to fix the ceiling cap to the ceiling.

For the lamps

Pictures provided as a suggestion and for explanation.

• Some decorative electricity cord.
• 3x decorative lamps.
• 3x lamp fittings.
• 3x M10 electricity cord clamp.
• A way of distributing electricity to 3 lamps (for example welding clamps).

Diameters

• The six cap parts form a ceiling cap that is 300 mm in diameter.
• The holes to connect the six cap parts are 4.2 mm in diameter (target M4).
• The holes for the parts that clamp the electricity cords to the cap are 10 mm in diameter (target M10).
• The holes for attaching the brace to the ceiling are 5.2 mm in diameter (target 5mm).
• The holes for the center bolt are 6.2 mm in diameter (target M6).

Assembly

Use the FreeCAD screen shots as a guide (intended to be self explanatory).

Note: This section only describes how all parts are bolted together. See "Disclaimer" section below regarding responsibilities.

• Bolt together the six cap parts to construct the ceiling cap with the M4 metal.
• Click the squeezer on the inside of the ceiling cap.
• Insert the M6 center bolt with a washer into the brace before attaching it to the ceiling. 
• Add another washer and nut to fix the center bolt to the brace.
• Take the ceiling cap, insert the cylinder while keeping the knob handy and place them all over the brace.
• Screw the knob on the center bolt so that it keeps everything nicely together.

Printing

• Fill density: 15%.
• Fill pattern: Gyroid.
• No support needed.
• In case of warping of the cap parts consider printing it with a brim.
• There are two types of cap parts: with and without a hole. You need 3 of each type!

Notes

• Optional: Each cap part has a semi-circle in the middle of the outer wall's top. You can use a file to make a pass through for electricity cables if need be.

Disclaimer

I do not want to, and cannot take, any responsibility for incorrect electric wiring or incorrect installation of this assembly. If you are fine with taking all responsibility then proceed, otherwise bail out now.

• Make sure that you know what you are doing when wiring electricity or hire a certified electrician to do it for you.
• There are no instructions provided for wiring the lamps which is by intent as this is totally at your own risk.
• Make sure that you know what you are doing when attaching the ceiling cap to the ceiling or hire a certified handy man to do it for you.
• There are no instructions provided for attaching the ceiling cap to the ceiling which is by intent as this is totally at you own risk.