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Sistrum Jingles: Thin Bronze Discs That Slide on the Crossbars
A sistrum rattles because small pieces of thin metal slide loose on its crossbars (Wikipedia, Sistrum). Here they are cut as small discs from thin bronze sheet, each with a hole larger than the crossbar wire. Size and method are ours.
The picture: an ancient Egyptian bronze sistrum with discs on its crossbars (Wikimedia Commons).
Utangiye
2 hours
Amabwiriza
1
1
Mark the discs
Mark the discs
On thin bronze sheet, scribe twelve circles 25 mm across with the dividers and centre-punch each centre.
Ibikoresho by'iyi ntambwe:
Urupapuro rwa buronze1 igiceIbikoresho bikenewe:
Ikizunguruka gifite imitwe ibiri
Igicukuzi cyo Gushyira Ikimenyetso
Inyundo ifite umutwe utambitse2
2
Drill the holes
Drill the holes
Drill each centre a size larger than the crossbar wire so the disc slides freely on it.
Ibikoresho bikenewe:
Igikoresho cyo gutobora gikoreshwa n'intoki
Ifatiro ry'Ameza
Amadarubindi y'umutekano3
3
Cut them out
Cut them out
Cut each disc out with the snips, just outside the line.
Ibikoresho bikenewe:
Ibyuma bikata ibyuma bisanzwe
Uturindantoki tw'uruhu tw'akazi4
4
File the edges
File the edges
File every edge round and smooth and take the burr off the holes, so nothing cuts the hand or catches on the wire.
Ibikoresho bikenewe:
Amakariso Menshi
Ifatiro ry'AmezaIbikoresho
1- 1 igiceUmwanya
Ibikoresho bikenewe
9- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
Blueprint zijyanye
Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame
CC0 Umurenge rusange
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