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Archive:Equipment/VerticalBandsaw: Difference between revisions

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Archive:Equipment/VerticalBandsaw (view source)

Revision as of 11:06, 2 April 2011

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→‎How to use
(current status and AJP+Phil's 36 step blade alignment procedure)
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Notes on alignment and fitting a new blade.
Notes on alignment and fitting a new blade.


We found that the upper pully wheel bearing was not tightly screwed to the vertical bit of metal that goes against the side of the machine. There is a slot for a flat screwdriver in the middle.
We found that the upper pulley wheel bearing was not tightly screwed to the vertical bit of metal that goes against the side of the machine. There is a slot for a flat screwdriver in the middle.
Tightening this up seemed to make it a lot less temperamental to adjust.
Tightening this up seemed to make it a lot less temperamental to adjust.
===Blade Installation Procedure===


Phil and I set it up with a new blade.  
Phil and I set it up with a new blade.  
The procedure we used was more or less as follows.
The procedure we used was more or less as follows.


0)do not touch the innards unless it is unplugged
#Do not touch the innards unless it is unplugged.
1)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.
2)do not power on unless you can carefully check nothing is fouling by rotating the drive pully by hand
#Do not power on unless you can carefully check nothing is fouling by rotating the drive pulley by hand.
3)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.
4)remove the wingnut, washer and bolt on the edge of the tray(the flat bit you put the workpiece on)
#Remove the wing-nut, washer and bolt on the edge of the tray(the flat bit you put the work piece on).
5)remove silver guard(loosen two black screws) then the whole tray
#Remove silver guard(loosen two black screws) then the whole tray.
6)remove the upper and lower guides
#Remove the upper and lower guides.
7)slacken the middle side knob
#Slacken the middle side knob.
8)undo the top tensioner knob until you can easily get the blade over the top pully wheel
#Undo the top tensioner knob until you can easily get the blade over the top pulley wheel.
9)put the blade in
#Put the blade in.
10)get the blade central on the pullys
#Get the blade central on the pulleys.
11)tighten top knob so the blade has enough tension not to foul inside the machine
#Tighten top knob so the blade has enough tension not to foul inside the machine.
12)tighten the middle side knob but leave it slack enough for the upper pully wheel to move a little
#Tighten the middle side knob but leave it slack enough for the upper pulley wheel to move a little.
13)find the right allen key for the grub screw next to the middle knob
#Find the right allen key for the grub screw next to the middle knob.
14)rotate blade by turning the drive pully by hand
#Rotate blade by turning the drive pulley by hand.
adjust blade tension by tuning top knob so the blade is straight where it is not on the pulleys.
#Adjust blade tension by tuning top knob so the blade is straight where it is not on the pulleys. The blade tension needs to be quite high to keep it straight, the top knob needs to be fairly tight.
The blade tension needs to be quite high to keep it straight, the top knob needs to be fairly tight.
#Rotate by hand, tighten middle knob a little if necessary.
15)rotate by hand, tighten middle knob a little if necessary
#If really sure, plug in, be ready to switch off quickly.
16)if really sure, plug in, be ready to switch off quickly
#Run the machine watching the blade position on the top pulley and where it enters the machine at the bottom. Switch off '''IMMEDIATELY''' if it blade is moving towards the edge of the pulley or fouling elsewhere. Listen and watch closely.
17)Run the machine watching the blade position on the top pully and where it enters the machine at the bottom. Switch off IMMEDIATELY if it blade is moving towards the edge of the pully or fouling elsewhere. Listen and watch closely.
#Using the allen key, adjust the grub screw and the middle very gingerly so the blade runs in the middle of the pulleys. They interact somewhat.
18)Using the allen key, adjust the grub screw and the middle very gingerly so the blade runs in the middle of the pulleys. They interact somewhat.
#The middle knob should be fairly tight but probably not screwed in a tight as it can go. The middle knob should NOT be loose.
19)The middle knob should be fairly tight but probably not screwed in a tight as it can go.
#Check top knob is tight, about as tight as you can turn it with one hand. When confident blade is running OK on pulleys and is suitable tensioned unplug machine.
The middle knob should NOT be loose.
#Attach lower runner (leave the little black guard for now). Adjust left/right position so back of the blade is a micron off the bearing. Don't mess with the vertical position.
20)Check top knob is tight, about as tight as you can turn it with one hand.
#Adjust the metal pegs that the blade runs between so it is a close as possible but has a tiny gap 22)either side.
when confident blade is running ok on pulleys and is suitable tensioned unplug machine.
#Attach black guard and fiddle to get the runner right again.
21)Attach lower runner (leave the little black guard for now). Adjust left/right position so back of the blade is a micron off the bearing.
#Attach upper runner. Adjust the metal pegs.
Dont mess with the vertical position.
#Rotate blade by hand watching the blade at all points.
Adjust the metal pegs that the blade runs between so it is a close as possible but has a tiny gap 22)either side.
#Check black screws are tight.
23)Attach black guard and fiddle to get the runner right again.
#Cautiously run machine.
24)Attach upper runner. Adjust the metal pegs.
#Unplug machine.
25)Rotate blade by hand watching the blade at all points.
#Reinstall tray.
26)Check black screws are tight.
#Reinstall silver guard (the bit with the 2 U shaped holes on the edge goes under two black screws).
28)Cautiously run machine.
#Reinstall bolt washer and wing nut on edge of tray (wing-nut on the underside).
29)unplug machine
#Put side cover on (three black thumb wheels)
30)reinstall tray
#Put allen key back in box.
31)reinstall silver guard (the bit with the 2 U shaped holes on the edge goes under two black screws)
#Try cutting suitable materials.
32)reinstall bolt washer and wing nut on edge of tray (wingnut on the underside)
#Count fingers.
33)put side cover on (three black thumbwheels)
34)put allen key back in box
35)Try cutting suitable materials.
36)Count fingers.


(maybe this procedure should be a separate page)
(maybe this procedure should be a separate page)
Anonymous user
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