We wanted our pre-school children to get in touch with letters in a casual way. These big letters are used as decorations in their rooms, but they also play with them. E.g. the O makes for a good hat.
Letter size is optimized for a 21 x 25 cm print plate. While the smaller letters have some space left, the letter W consumes all of it (see discussion of brim, below). The default orientation of the letter models is “face down”, as this gives a nicer front surface.
I consider following printing parameters to be optimal for PLA:
- 0.45 mm layer height for 0.6 mm nozzle
- 0.3 mm layer height for 0.4 mm nozzle
- 2 vertical perimeters
- 3 top and 4 bottom perimeters
- Adaptive cubic infill, 10%
- Brim > 5 mm
- Skirt off (Skirt loops = 0)
If you use the letters for decoration only (no kids will be playing with them), you could go with a 5% lightning infill and less perimeters.
A brim is required to prevent the corners from lifting off from the plate. With large letters as W and M, you will not find the space for a large enough brim. If you use those letters, consider scaling down all letters slightly to make space for a brim, while having equal letter height.
Letters F and P naturally tip over! This problem is solved through counterbalancing: Both letters have a cavity that should be filled with something dense (sand, steel washers, plaster, … ). The cavity can be closed using the Lid model and some adhesive. I'd recommend some rather viscous adhesive to get the gaps well filled, especially when using sand.
Styles: I used fuzzy skin and I think it looks great, especially on the blue-ish letters. Another set of letters was printed with fluorescent PLA from azure - They glow in the dark. This has the advantage that it makes the kids go to bed voluntarily; at least one or two times …
BIG LETTERS alphabet
by undoz · original on Printables ↗
Household / Home Decor
♥ 219⬇ 1.7k🖨 8 prints
Print profiles
Big_Letters_I.stl
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Big_Letters_F.stl
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Big_Letters_E.stl
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Big_Letters_B.stl
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Big_Letters_A.stlDEFAULT
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Big_Letters_D.stl
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Big_Letters_N.stl
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Big_Letters_M.stl
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Big_Letters_L.stl
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Big_Letters_H.stl
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Big_Letters_J.stl
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Big_Letters_K.stl
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Big_Letters_O.stl
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Big_Letters_T.stl
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Big_Letters_C.stl
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Big_Letters_S.stl
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Big_Letters_Z.stl
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Big_Letters_X.stl
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Big_Letters_U.stl
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Big_Letters_R.stl
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Big_Letters_Y.stl
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Big_Letters_G.stl
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Big_Letters_V.stl
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Lid.stl
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Big_Letters_P.stl
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Big_Letters_Q.stl
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Big_Letters_W.stl
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Big_Letters_All.3mf
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Big_Letters_Lid.3mf
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