Observatory Beam — 3D-printable model preview

AR view

Geometric & decorative Multi-part assembly

Observatory Beam

Throw a turnable blade of light across the ceiling

A night light with an observatory roof. Set an LED puck on the round base and lower the drum over it: light escapes only through the slit in the roof, throwing one sharp blade of light up the wall and across the ceiling, and turning the drum on its base sweeps the blade round the room like a telescope dome turning to a new star.

Customize this model

Size: Ø 96 mm, 74 mm tall
Shape: Round
Walls: 2.4 mm
Volume: 92.8 cm³
Est. weight (PLA): 115 g
Parts to print: 3
Category: Geometric & decorative
Made by: Krypto
Built in: 15 steps

What’s in it

Round, Ø 96 mm, 74 mm tall, with 2.4 mm walls
1 hole in the floor
Friction-fit lid (prints separately)

How to print it

Opaque matt filament keeps the beam crisp. Print it as shown, then turn it over so the floor becomes the top. The lid is the base; needs a 70 mm LED puck.

Print floor-down as shown, then turn it over to use it. The friction-fit lid and its neck piece print separately; adjust Fit in the Lid tab if it binds.

Filament: at most about 115 g of PLA printed solid (roughly $2.30 at $20 per kg); normal infill uses less.

To get the files, open it in the generator and choose File › Download STL (one file per part) or Download 3MF (every part on one plate).

Questions

What size is the observatory Beam model?

The observatory Beam model measures Ø 96 mm, 74 mm tall. You can change every size in the free SO3D.xyz generator before you download it.

Does it need supports?

Usually not. Opaque matt filament keeps the beam crisp. Print it as shown, then turn it over so the floor becomes the top. The lid is the base; needs a 70 mm LED puck. Print floor-down as shown, then turn it over to use it. The friction-fit lid and its neck piece print separately; adjust Fit in the Lid tab if it binds.

How much filament does it use?

At most about 115 g of PLA (92.8 cm³ printed solid), roughly $2.30 of filament at $20 per kg. Normal infill uses less.

How many parts does it print as?

3 parts. The download lays each part flat in its best print position: Download STL gives one file per part, Download 3MF puts them all on one plate.

Can I change it?

Yes. Open it in the SO3D.xyz generator (free, in your browser), change the size, walls, dividers, holes, text or anything else, then download it as STL or 3MF for your slicer.

More geometric & decorative

Catenary arch riser pair

Lift a shelf board on two compression arches

Simple (set)

Desktop suikinkutsu water harp

Turn dripping water into bell-like sounds

Medium

Hilbert curve incense clock

Time and scent a room with an incense trail

Hanging planter for trailing plants

Hang a trailing plant

Medium

Rosace

Throw coloured light through window tracery

Medium

Hypar Lamp

Stretch fabric into a glowing saddle roof

Simple

Wayback Rose

Catch keys in a dish aimed at your hometown

Simple

See all 85 in Geometric & decorative

Make it fit your space

Change the size, walls, dividers, holes and labels of the observatory Beam model in your browser, then download it for your printer. Free, no CAD needed.

Customize this model