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Archive:Equipment/VerticalBandsaw: Difference between revisions
From London Hackspace Wiki
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This bandsaw is working. | This bandsaw is working. | ||
Phil and AJP think it is in good adjustment | Phil and AJP think it is in good adjustment as of 1st april 2011. It makes a click every time the weld in the blade passes through the business end without a workpiece pressed against the saw, it's just the blade touching the upper bearing, we don't think the blade is touching anything it should not. | ||
blade touching the upper bearing, we don't think the blade is touching anything it should not. | |||
The current blade is usable but not brilliant for the 5mm wood sheet that is used in the laser cutter. You have to cut really slowly or the blade may bind up. It's not good for wood any bigger than that. A label saying "warning 5mm thick sheet max" would be good with the current blade--AJP | The current blade is usable but not brilliant for the 5mm wood sheet that is used in the laser cutter. You have to cut really slowly or the blade may bind up. It's not good for wood any bigger than that. A label saying "warning 5mm thick sheet max" would be good with the current blade--AJP | ||
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It's a bit of a fiddly job to get it running smoothly in the guides so don't attempt to change it unless you're prepared to spend a long time messing. If you feel you must, and it ends up working less well than when you started, label it and mention it on the mailing list. Better to admit you need more practice than wreck it for the next person. | It's a bit of a fiddly job to get it running smoothly in the guides so don't attempt to change it unless you're prepared to spend a long time messing. Fully read procedure below and instruction leaflet. If you feel you must, and it ends up working less well than when you started, label it and mention it on the mailing list. Better to admit you need more practice than wreck it for the next person. | ||
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As best as I can measure it the blade is 50 and one eighth of an inch (127.4cm) in circumference. It is 3/8 of a inch wide (9mm) to the points of the teeth. Seems to be an unusually small size. | As best as I can measure it the blade is 50 and one eighth of an inch (127.4cm) in circumference. It is 3/8 of a inch wide (9mm) to the points of the teeth. Seems to be an unusually small size. | ||
A custom made blade of 50" length and 3/8 width seems ok so far. There seems to be three standard blade widths | A custom made blade of 50" length and 3/8 width seems ok so far. There seems to be three standard blade widths. I think a blade other than 3/8" wide is probably a bad idea. [[User:Ajp|Ajp]] | ||
Notes on alignment and fitting a new blade. | Notes on alignment and fitting a new blade. | ||
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#Do not touch the innards unless it is unplugged. | #Do not touch the innards unless it is unplugged. | ||
#Get someone who with machine tool experience to help, do not proceed otherwise. | #Get someone who with machine tool experience to help, do not proceed otherwise. | ||
#Do not power on unless you can carefully check nothing is fouling by rotating the drive pulley by hand. | #'''Do not power on unless you can carefully check nothing is fouling by rotating the drive pulley by hand.''' Mark it out of order and leave it if you can't make it run freely. | ||
#Have a clear, well lit work area so you don't loose any of the small parts. | #Have a clear, well lit work area so you don't loose any of the small parts. | ||
#Remove cover, put thumbscrews they won't get lost | |||
#Use a large flathead screwdriver to check the upper pulley bearing is screwed down tight | |||
#Remove the wing-nut, washer and bolt on the edge of the tray(the flat bit you put the work piece on). | #Remove the wing-nut, washer and bolt on the edge of the tray(the flat bit you put the work piece on). | ||
#Remove silver guard(loosen two black screws) then the whole tray. | #Remove silver guard(loosen two black screws) then the whole tray. | ||
#Remove the upper | #Remove the upper guide | ||
#Remove the lower guide by removing the single screw, not the two vertical position screw. | |||
#Slacken the middle side knob. | #Slacken the middle side knob. | ||
#Undo the top tensioner knob until you can easily get the blade over the top pulley wheel. | #Undo the top tensioner knob until you can easily get the blade over the top pulley wheel. | ||
