SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
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.
Kati
1 day milling, 2–3 months drying
Maagizo
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.
Vifaa kwa hatua hii:
Magogo ya mti laini1 kipandeZana zinazohitajika:
Tepi ya kupimia2
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.
Zana zinazohitajika:
Msumeno wa moto (wa kiwango cha kitaalamu cha misitu)
Kinu cha msumeno wa moto3
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.
Vifaa kwa hatua hii:
Parafujo za mbao6 vipandeZana zinazohitajika:
Ubao wa msonobari
Kekee cha Betri
Rula ya kunyoosha
Rulani ya Maji4
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.
Zana zinazohitajika:
Msumeno wa moto (wa kiwango cha kitaalamu cha misitu)Kinu cha msumeno wa moto
Kofia ngumu ya usalama
Vizuizi vya masikio
Glavu za Kazi za Ngozi
Buti za usalama zenye ncha ya chuma5
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.
Zana zinazohitajika:
Msumeno wa moto (wa kiwango cha kitaalamu cha misitu)Kinu cha msumeno wa motoTepi ya kupimia6
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.
Vifaa kwa hatua hii:
Kizibo cha ncha (nta ya parafini)0.5 lita7
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.
Vifaa kwa hatua hii:
Kijiti cha mbao (kitenganishi cha kukaushia)30 vipandeZana zinazohitajika:
Paleti ya mbaoRulani ya Maji8
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.
Zana zinazohitajika:
Turubai ya kukinga9
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.
Zana zinazohitajika:
Kipima unyevu10
10
Troubleshooting
Troubleshooting
Chainsaw milling troubleshooting.
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Vumbi la msumeno
Free
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Mabaki makavu ya mbao
Free
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CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.