Gas Cylinder Magnets

Gas cylinders are used in many buildings to supply a wide variety of gases. I designed these magnets to bring a little more fun and overview to their use.

The printed parts have a slight curvature on their backs in order to fit the cylinders (50 l). The two magnets hold them perfectly on the cylinders (but also on flat surfaces). To remove the magnets from the cylinders, a slight twist is enough.

Necessary parts per model

For each printed mini gas cylinder, you will need two magnets with the size of 8 x 3 mm (8 mm diameter, 3 mm thickness) and some kind of glue to fix them. (The dimension of the hole is 8.5 mm.) 

If you choose the one color print, you'll also might want to glue the letters into their holes. I recomment using a toothpick to get the glue inside the hole. Using acetone to glue pieces made of PLA together is also a great way, but again, the small holes are a little fiddly to fill. And the low-viscosity acetone drips easily onto the cylinder, leaving unsightly stains. That's why I can't recommend it in this case.

Printing

The prints do not have to cope with any special conditions. Therefore, select the filament of your choice.

As the back has a slight curve, I recommend printing the cylinder standing upright. That way the front also looks nicer. Support material is needed.

You can choose between multicolor-print or single-color-print.

Multicolor print

The multicolor print consists of several objects gathered in a single 3mf-file. (Exported in Autodesk Fusion 360 - so no printer configration has been made yet.)

One color print

Each object is stored in a seperated stl-file. (Don't forget the second L in the word FULL.) You can lay the letters flat on their back, which is also the only working orientation, I could find, for the letter S. Unfortunately, this is the worst choice when it comes to surface quality. It is advisable to print the letters lying on their side (E, F, I, L, N, P, U) or upside down (M, N, T, U, Y). In some cases, support material is required. As the letters are quite small, I couldn't get the support material on the S to break off without destroying the letter. I can therefore only recommend the flat orientation for the S.

Unlabelled

I also included an unlabelled gas cylinder.

Pictures

The magnets in the pcitures has been printed on a Prusa MK2.5S and a BambuLab X1 Carbon in one color print. I used PLA from Material4Print (Grün, Reinrot, Verkehrsgelb & Schwarz). 

And now, have fun with them!