IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Steel Butt Hinges from Sheet and Rod
A butt hinge is two flat leaves whose curled edges, the knuckles, interlock round a pin. Each leaf's edge is rolled round a rod the size of the pin; slots are cut so the knuckles alternate; the pin goes through and is peened over. Countersunk holes take the screws.
Àárín
2 hours per pair
Ìlànà
1
1
Cut the leaves
Cut the leaves
Mark and cut two leaves from 1.5 mm mild steel sheet, 75 by 30 mm plus a curl allowance of about three times the pin's diameter.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ìwé Irin Pẹ́lẹ́0.01 sqmÀwọn irinṣẹ́ tí a nílò:
Abẹ́rẹ́ Ìkọ Ìlà
Ìlàǹkàn irin
Àkójọ Ìfá2
2
Roll the knuckles
Roll the knuckles
Clamp a leaf in the vise with a 4 mm rod along its edge and hammer the edge round the rod, a little at a time, until it closes. Do the second leaf the same way.
Àwọn irinṣẹ́ tí a nílò:
Ìdìmú Tábìlì
Òòlù olórí bọ́ọ̀lù3
3
Cut alternate knuckles
Cut alternate knuckles
Mark the knuckle into five equal lengths. Saw and file away the 2nd and 4th on one leaf and the 1st, 3rd and 5th on the other, so they mesh.
Àwọn irinṣẹ́ tí a nílò:
Ayùn IrinÀkójọ Ìfá
Òṣùwọ̀n Kálípà Díjítà Ìnṣì 64
4
Drill and countersink
Drill and countersink
Centre-punch three holes in each leaf, drill them for the screws and countersink them.
Àwọn irinṣẹ́ tí a nílò:
Igi Àmì Àárín
Ẹ̀rọ Ìlùkòkò Onídúró
Àkójọ Orí Ìlùkòkò
Ìṣètò Abẹ Countersink5
5
Pin it
Pin it
Mesh the knuckles and push a 4 mm mild steel rod through, cut 1 mm proud at each end. Peen both ends over so the pin cannot slide out. Check it swings freely.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ọ̀pá Róbótó Irin Rírọ̀0.1 mítàÀwọn irinṣẹ́ tí a nílò:
Ayùn IrinÒòlù olórí bọ́ọ̀lùÌdìmú Tábìlì6
6
Troubleshooting
Troubleshooting
Butt hinge troubleshooting.
Flow
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Àwọn ohun-èlò
2- 0.01 sqmÀyè
- 0.1 mítàÀyè
Àwọn irinṣẹ́ tó nílò
11- Àyè
- Àyè
- Àyè
- Àyè
Ìtọ́nisọ́nà yìí ń ṣe
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