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Black Card Stock: Pasteboard Coated with Lampblack
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14. Ukwakira 2026DE
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Black Card Stock: Pasteboard Coated with Lampblack

Black card shows up a pale deposit that would vanish on white card. Lampblack, the soot of oil lamps, is a deep black pigment because it reflects almost no light. Grind it into a thin warm glue size, brush two even coats on pasteboard, and press the cards flat as they dry. The picture: our diagram, the same pale deposit on white card and on black card.
Utangiye
A day, mostly drying

Amabwiriza

1

Make the size

Soak a little hide glue in water, then warm it in the double boiler until it is a thin liquid.

Ibikoresho by'iyi ntambwe:

Ifatanyo ry'uruhu rw'inyamaswaIfatanyo ry'uruhu rw'inyamaswa20 g
AmaziAmazi0.4 litiro

Ibikoresho bikenewe:

Isafuriya ebyiri zo guteka ku maziIsafuriya ebyiri zo guteka ku mazi
Umunzani w'ibiroUmunzani w'ibiro
2

Grind in the black

Grind the lampblack in the mortar with a little of the warm size until smooth, then stir in the rest.

Ibikoresho by'iyi ntambwe:

Umukara w'itaraUmukara w'itara30 g

Ibikoresho bikenewe:

Isekuru n'UmuhiniIsekuru n'Umuhini
3

Coat the board

Brush an even coat over each sheet of pasteboard in one direction, then a second coat across it once the first is dry.

Ibikoresho by'iyi ntambwe:

Ikarito y'impapuro zifatanyijweIkarito y'impapuro zifatanyijwe20 ibice

Ibikoresho bikenewe:

Uburoso bugariUburoso bugari
Igitanda cyo kumishirizaIgitanda cyo kumishiriza
4

Press flat

When nearly dry, stack the cards between clean sheets under a flat stone overnight so they do not curl.

Ibikoresho bikenewe:

Ikibaho cy'Ibuye KirambuyeIkibaho cy'Ibuye Kirambuye
5

Paint needed

Gupakira ikaye ya Jupyter…

Ibikoresho

4

Ibikoresho bikenewe

6

Blueprint zijyanye

Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

CC0 Umurenge rusange

Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.

Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.

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