woodmizer BMT100-2 Guide

Wood-Mizer® Toothsetter
Safety, Operation, Parts
& Maintenance Manual
BMT100-2 Rev. A.00
BMT100-3 Rev. A.00
Safety is our #1 concern! Read and understand
all safety information and instructions before oper-
ating, setting up or maintaining this machine.
July 2013 Form #2026

ii BMT10013doc082115 Table of Contents
Table of Contents Section-Page
SECTION 1 OVERVIEW 1-1
1.1 Toothsetter Introduction............................................................................................1-1
1.2 Deburring The Blade.................................................................................................1-2
SECTION 2 SETUP 2-1
2.1 Toothsetter Mount.....................................................................................................2-1
2.2 Blade Support Installation.........................................................................................2-5
2.3 Dial Indicator Setup...................................................................................................2-8
SECTION 3 OPERATION 3-1
3.1 Blade Installation.......................................................................................................3-1
3.2 Toothsetter Adjustments............................................................................................3-4
3.3 Toothsetter Operation................................................................................................3-7
SECTION 4 REPLACEMENT PARTS 4-1
4.1 How To Use The Parts List.......................................................................................4-1
4.2 Sample Assembly......................................................................................................4-1
4.3 Toothsetter Parts........................................................................................................4-2
BMT100-2 Rev. A.00+
BMT100-3 Rev. A.00+
4.4 Toothsetter Assembly (BMT100-3 Only).................................................................4-3
BMT100-3 Rev. A.00+
4.5 Toothsetter Assembly (BMT100-2 Only).................................................................4-6
BMT100-2 Rev. A.00+
4.6 Blade Support Arms..................................................................................................4-9
4.7 Stand Assembly (Optional) .....................................................................................4-10
BMT100-2 Rev. A.00+
BMT100-3 Rev. A.00+
SECTION 5 MAINTENANCE 5-1
5.1 Toothsetter Maintenance...........................................................................................5-1
INDEX I

Overview
Toothsetter Introduction
Overview BMT10013doc082115 1-1
1
SECTION 1 OVERVIEW
1.1 Toothsetter Introduction
There are four steps to maintaining blades used on the Wood-Mizer sawmill. They should
ALWAYS be followed in this order:
1. Blade Cleaning
2. Sharpening
3. Deburring
4. Toothsetting
See Figure 1-1. The blades supplied by Wood-Mizer have a raker-style set in the teeth. If
you look at a blade from the top, you will see that the teeth are set (or bent out) in a
repeating sequence; straight, left and right. The teeth that are set left and right do the cut-
ting. The straight teeth (rakers) clear the cut of sawdust.
See Figure 1-2. As the blade is sharpened, the tip of the tooth recedes and the set
becomes smaller. Correct setting is one of the most important factors in the cutting ability
of a blade. Check used blades regularly to see if they need resetting.
The BMT100-2/BMT100-3 Toothsetter allows you to accurately and evenly set the teeth
of a bandsaw blade. The spring-loaded clamping mechanism lets you position a tooth in
front of the gauge and clamp it in place. You can then measure the set. The tooth is bent
by clamping the blade further. This chapter describes proper setup and operation of the
toothsetter.
FIG. 1-1
FIG. 1-2
Set Left Raker
Set Right
Set After
Sharpening Original
Set

Overview
Deburring The Blade
1
1-2 BMT10013doc082115 Overview
1.2 Deburring The Blade
Sharpening leaves tiny metal burrs on the back side of the teeth. New blades also have
burrs. These burrs MUST be removed before the set is checked. If they are not removed,
they may cause the toothsetter to give false readings.
To remove burrs, take the blade from the Sharpener. Invert it, so that the inside of the
blade is facing out. Drag a stick of hardwood across the blade in the opposite direction
that the teeth cut. (Use the weld in the blade as a reference point for starting and stop-
ping.)
Cutting with the blade also removes burrs. If the blade you are about to set has been
used after sharpening, you will not need to deburr it. Clean the blade before removing
from the mill by running the Water Lube Option for 15 seconds. Remove the blade and
wipe dry with a rag to prevent rusting.

Setup
Toothsetter Mount
Setup BMT10013doc082115 2-1
2
SECTION 2 SETUP
2.1 Toothsetter Mount
Install the crank handle to the toothsetter crank assembly using the supplied hex head
bolt. Be sure the handle is oriented in the "up" position as shown. Install the crank handle
knob to the crank handle using the provided socket head bolt and two hex nuts.
Mount the toothsetter to the stand. Use the mounting holes found in the base plate of the
setting fixture. Use the provided bolts (inserting the bolts down through the top of the
mounting plate), hex nuts. Setup the toothsetter so that there is at least 32" (81.0 cm) to
the rear and to either side of the tool. This allows enough room for the blade supports.
See Figure 2-1.
FIG. 2-1 BMT100-2
BMT008-1
Hex Nut (2)
Mounting Bolt (2)
Hex Nut (2)
Toothsetter
Stand
Hex Head Bolt
Socket Head Bolt
Toothsetter Crank
Handle
Crank Handle
Knob

Setup
Toothsetter Mount
2
2-2 BMT10013doc082115 Setup
FIG. 2-1 BMT100-3
BMT001-1
Hex Nut (2)
Mounting Bolt (2)
Hex Nut (2)
Toothsetter
Stand
Hex Head Bolt
Socket Head Bolt
Toothsetter
Crank
Handle
Crank Handle
Knob

Setup
Toothsetter Mount
Setup BMT10013doc082115 2-3
2
See Figure 2-2. The main components of the toothsetter are shown below. These parts
will be discussed in the following instructions.
FIG. 2-2 BMT100-2
BMT008-2
Dial Indicator Gauge
Foot Right Index Pawl
Setting Point
Crank
Handle
Clamp
Adjustment
Nut
Blade Support
Arms (3)
Left Index
Pawl
Blade Rest
Screws (2)

Setup
Toothsetter Mount
2
2-4 BMT10013doc082115 Setup
FIG. 2-2 BMT100-3
BMT001-2
Dial Indicator Gauge
Foot Right Index Pawl
Setting Point
Crank
Handle
Clamp
Adjustment
Nut
Blade Support
Arms (3)
Left Index
Pawl
Blade Rest
Screws (2)

Setup
Blade Support Installation
Setup BMT10013doc082115 2-5
2
2.2 Blade Support Installation
Attach the three blade support arms to the threaded mounting bar at the rear of the tooth-
setter. Five sets of support arm mounting holes are provided. Use one of the set of holes
for the appropriate blades (BMT100-2: from 1" to 2" wide blades; BMT100-3: from 1" to 3"
wide blades).
See Figure 2-3.
FIG. 2-3 BMT100-2
BMT008-3
Blade Guide Assembly (3)
Blade Support Arms (3) Use lower holes
for wide blades
Use upper holes
for narrow blades

Setup
Blade Support Installation
2
2-6 BMT10013doc082115 Setup
FIG. 2-3 BMT100-3
BMT001-3
Blade Guide Assembly (3)
Blade Support Arms (3) Use lower holes
for wide blades
Use upper holes
for narrow blades

Setup
Blade Support Installation
Setup BMT10013doc082115 2-7
2
See Figure 2-4. Assemble a blade support guide onto the end of each blade support arm.
Bolt from the hexed side of the guide assembly. Tighten the top bolts with the self-locking
nuts. Tighten the bottom bolts with the wing nuts.
The guides should be about 1" (2.5 cm) from the ends of the right and rear tubes and
about 2.5" (6.0 cm) from the end of the left tube. Final adjustments will be made later.
FIG. 2-4
SM0039
Blade
support arm
Guide
assembly

Setup
Dial Indicator Setup
2
2-8 BMT10013doc082115 Setup
2.3 Dial Indicator Setup
To set the dial indicator, follow these steps.
See Figure 2-5.
1. Back the setting point out of the way. Insert the hex key in the end of the setting con-
tact point shaft and turn counterclockwise until the setting contact point is behind the front
edge of the moving clamping plate.
2. Adjust the Dial Indicator. Clamp the gauge pin between the clamping plates. The pin
should be touching the center of the gauge foot.
FIG. 2-5 BMT100-2
BMT008-4
Adjust dial
to .000” Use wrench to
back out setting point
Clamp gauge pin
against
gauge foot

Setup
Dial Indicator Setup
Setup BMT10013doc082115 2-9
2
The dial indicator should read 0. If the dial indicator does not show 0, loosen the dial lock
on the upper right side of the dial indicator. Rotate the dial indicator to 0 and retighten the
dial lock.
Now, remove the gauge pin from the toothsetter clamp. The dial indicator should now
read between -.001 and -.005.
See Figure 2-6. If the dial indicator does not read between -.001 and -.005 with nothing
clamped, you will need to adjust the indicator position:
FIG. 2-5 BMT100-3
BMT001-4
Adjust dial
to .000” Use wrench to
back out setting point
Clamp gauge pin
against
gauge foot

Setup
Dial Indicator Setup
2
2-10 BMT10013doc082115 Setup
3. Reclamp the gauge pin centered on the gauge foot.
4. Loosen the locking screw at the top of the indicator mounting block. Move the indicator
assembly back until the gauge foot does not touch the gauge pin.
FIG. 2-6 BMT100-2
FIG. 2-6 BMT100-3
BMT008-5
Loosen screw to move
dial indicator forward
or backward
BMT001-5
Loosen screw to move
dial indicator forward
or backward

Setup
Dial Indicator Setup
Setup BMT10013doc082115 2-11
2
5. Move the indicator assembly forward so the gauge foot touches the gauge pin and the
gauge needle moves .001 - .005. Retighten the mounting block screw.
6. Rotate the dial face until the gauge reads zero.
7. Unclamp the gauge pin. The indicator should now read -.001 to -.005. If not, repeat steps
3-6.

Operation
Blade Installation
3
3-1 BMT10013doc082115 Operation
SECTION 3 OPERATION
WARNING! Always wear gloves and eye protection when
handling bandsaw blades. Changing blades is safest when
done by one person! Keep all other persons away from
area when coiling, carrying or changing a blade. Failure to
do so may result in serious injury.
Once the toothsetter alignments have been checked and adjustments have been made,
you are ready to measure and set blades.
Sharpening removes metal from the face of the tooth. This eventually reduces the set to a
point where the blade will not cut very well. Set should not vary more than (±)0.002 from
one tooth to the next and (±)0.002 from one side of the blade to the other side.
The following steps will take you through operation of the toothsetter.
Note: Refer to theWood-Mizer®Blade Handbook for recommended set specifications for
your sawing application.
3.1 Blade Installation
1. Clean the blade and deburr before putting it in the toothsetter. Otherwise, sap
buildup on the blade or tooth will give false set readings. Metal burrs created by sharpen-
ing also will cause false readings.
Mount the blade in the toothsetter. Place blade between the clamping plates and on
the three guide assemblies.NOTE: You will need to move both the left and right index
pawl assemblies down and out of the way. These will be adjusted later.

Operation
Blade Installation
Operation BMT10013doc082115 3-2
3
2. Adjust crank handle for desired setting location. The handle can be adjusted so that
when the setting point contacts the blade, the handle is located in a desirable position.
Loosen the jam nut on the crank handle shaft and rotate the adjustment nut to move it in
or out to relocate the handle position. Retighten the jam nut.
FIG. 3-0 BMT100-2
BMT008-6
Turn adjustment nut in
or out to change handle position
Jam Nut

Operation
Blade Installation
3
3-3 BMT10013doc082115 Operation
FIG. 3-0 BMT100-3
BMT001-6
Turn adjustment nut in
or out to change handle position
Jam Nut

Operation
Toothsetter Adjustments
Operation BMT10013doc082115 3-4
3
3.2 Toothsetter Adjustments
See Figure 3-1.
1. Adjust the blade rest screws. Rest the blade evenly on the two blade rest screws on
each side of the clamp. Adjust the rest screws until the gullet of the blade lies just below
the top of the clamp plates. (Deburring will remove burrs from the back side of the teeth,
but may not remove burrs from the gullet area. Keeping the gullet out of the clamp
assembly helps to assure accurate readings.)
FIG. 3-1 BMT100-2
BMT008-7
Blade Rest Screw
Wing Nut

Operation
Toothsetter Adjustments
3
3-5 BMT10013doc082115 Operation
2. Make final adjustments to blade support arms and guide assemblies. Adjust to
assure the blade travels smoothly. Blade should rest on rear guide, but should not touch
the bottom of either side guide assembly.
3. Adjust the setting contact point. Position the blade so the gauge foot is in between two
teeth. Use the hex key to bring the setting contact point towards the gauge foot until the
dial indicator reads 15-20 thousandths.
4. Position the blade. Turn the blade to bring a weld into the clamping/setting assembly.
Use the weld as a reference point for starting and stopping. Start with the first tooth to the
right (See NOTE) of the weld that has been set back toward the dial indicator.
NOTE: The toothsetter sets and measures the teeth which are set away from the opera-
tor and towards the dial indicator. To measure teeth set in the opposite direction, invert
the blade and insert it in the toothsetter.
See Figure 3-2. Position that tooth in front of the gauge foot so the its edge is aligned
with the center of the setting point.
FIG. 3-1 BMT100-3
BMT001-7
Blade Rest Screw
Wing Nut