UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Printed Protractor on Pasteboard
A protractor is a half circle divided into 180 degrees. Drawn in millimetres on an A4 page with an 80 mm radius, every degree mark is about 1.4 mm apart, enough to read to a degree. Printed at actual size and glued to stiff pasteboard, it measures as well as a shop one for paper and wood work. A 100 mm check line on the sheet catches a printer that shrinks the page.
Download: /uploads/blueprints/protractor-a4-180.pdf
Utangiye
45 minutes
Amabwiriza
1
1
Print at actual size
Print at actual size
Download the protractor sheet and print it with 'Actual size' (100 %), never 'Fit to page'. Measure the check line: it must be 100 mm.
Ibikoresho by'iyi ntambwe:
Impapuro1 urupapuroIbikoresho bikenewe:
Mudasobwa yo ku Meza
Imashini icapa itera inki
Umurongo w'ipima2
2
Download the protractor sheet
Download the protractor sheet
The protractor sheet, used as step 1 describes.
3
3
Why actual size matters
Why actual size matters
Printing a measuring sheet so it stays true.
4
4
Glue to pasteboard
Glue to pasteboard
Brush warm hide glue thinly over a piece of pasteboard, lay the print on it, smooth it from the middle out and press it flat under a weight until dry.
Ibikoresho by'iyi ntambwe:
Ikarito y'impapuro zifatanyijwe1 urupapuro
Ifatanyo ry'uruhu rw'inyamaswa10 gIbikoresho bikenewe:
Isafuriya ebyiri zo guteka ku mazi
Urubaho rushyushya
Uburoso bwo gusiga igifatanya
Ikiremereza5
5
Cut it out
Cut it out
On the cutting mat, cut along the straight baseline exactly and round the arc a few millimetres outside the marks.
Ibikoresho bikenewe:
Icyuma cy'Ubukorikori
Umukeka wo gukatiraho wikizaUmurongo w'ipima6
6
Check it
Check it
Measure the baseline from the 0° mark to the 180° mark through the centre cross: it should be 160 mm. Check that 90° stands square to the baseline.
Ibikoresho bikenewe:
Umurongo w'ipimaIbikoresho
3- 1 urupapuroUmwanya
- 1 urupapuroUmwanya
- Umwanya
Ibikoresho bikenewe
9- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Dosiye z'igishushanyo
1Iki gishushanyo gikora
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.