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
Pine Boards with a Chainsaw Mill
A chainsaw mill is a frame that holds the saw's bar flat at a set height, so the chain rips a log lengthways into boards. The first cut rides on a straight board screwed to the log; every later cut rides on the flat face before it. The green boards are then stacked on stickers to air-dry.
Pine dries fast: a 25 mm board can reach about 14 % moisture in 60 to 90 days in good drying weather. Oak and other slow species take far longer.
Àárín
1 day milling, 2–3 months drying
Ìlànà
1
1
Pick and prop the log
Pick and prop the log
Choose a straight pine log, 2.5–3 m long, without large knots. Prop it on two short logs so it cannot roll and the chain will not reach the ground.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Àwọn igi rírọ̀1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Okùn Ìdíwọ̀n2
2
Fit the mill
Fit the mill
Bolt the mill to the chainsaw bar following its maker's instructions. A ripping chain cuts along the grain faster and smoother than a crosscut chain.
Àwọn irinṣẹ́ tí a nílò:
Chainsaw (ipò oníṣẹ́ igbó)
Férémù ayùn-ẹ̀rọ fún pípín igi3
3
Screw on the guide board
Screw on the guide board
Screw a straight board along the top of the log, level from end to end, as the rail for the first cut. Check it with the straightedge and level.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ìṣó igi6 ẹyọÀwọn irinṣẹ́ tí a nílò:
Pákó igi pine
Ẹ̀rọ Ìlùkòkò Aláìlókùn
Etí tààrà
Ìwọ̀n Ìtẹ́jú4
4
First cut
First cut
Wearing helmet with visor, ear protection, gloves and boots, run the mill along the guide board and take off the top slab. Remove the guide board.
Àwọn irinṣẹ́ tí a nílò:
Chainsaw (ipò oníṣẹ́ igbó)Férémù ayùn-ẹ̀rọ fún pípín igi
Àkéte ààbò
Ìbòjú etí ààbò
Ìbọ̀wọ́ Iṣẹ́ Awọ
Bàtà ààbò oníkángun irin5
5
Cut the boards
Cut the boards
Set the mill a few millimetres thicker than the finished board, to allow for shrinking and planing. Run each cut on the flat face left by the one before.
Àwọn irinṣẹ́ tí a nílò:
Chainsaw (ipò oníṣẹ́ igbó)Férémù ayùn-ẹ̀rọ fún pípín igiOkùn Ìdíwọ̀n6
6
Seal the ends
Seal the ends
Paint both ends of every board with end sealer the same day, to stop them splitting as they dry.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ohun ìdí orí-pákó (ìdí paraffin)0.5 lítà7
7
Sticker the stack
Sticker the stack
On a level base at least 30 cm off the ground, lay the boards in layers with a gap between them, each layer on stickers every 40–60 cm, the stickers one above the other.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ọ̀pá igi ìtò (àlàfo ìgbẹ́)30 ẹyọÀwọn irinṣẹ́ tí a nílò:
Pẹpẹ igiÌwọ̀n Ìtẹ́jú8
8
Cover and weight
Cover and weight
Cover the top of the stack against rain and lay weight on it to keep the top boards flat; leave the sides open to the air.
Àwọn irinṣẹ́ tí a nílò:
Táàpù9
9
Measure the moisture
Measure the moisture
After 2 months, read a board from the middle of the stack. Air-dry outdoors reaches about 12–15 %; bring boards for furniture indoors to settle at 6–8 % before working them.
Àwọn irinṣẹ́ tí a nílò:
Ohun ìwọ̀n ọ̀rinrin10
10
Troubleshooting
Troubleshooting
Chainsaw milling troubleshooting.
Flow
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