C-3 Stationary Power Tools Flashcards
Control Switch (band saw)
turns on and off power. usually mounted on left of saw but may be different
Arm/column (band saw)
supports the contents above the table top. encases the saw blade as it travels from lower wheel to upper wheel
Motor and Drive belt (band saw)
sources of power for band saw. they are usually housed in the base cabinet. drive belt should always be enclosed by guard
Drive wheel (band saw)
located at the bottom of band saw. gets power from the motor and drive belt transfers that power to saw blade
upper wheel (band saw)
can be raised or lowered to adjust blade tension.
Diameter of wheels dictate what? (band saw)
maximum size or width of cut.
Tension controle handle (band saw)
used to raise or lower the upper wheel when changing saw blades or applying tension to the blade.
blade slot and insert (band saw)
at center of table contains and opening and an insert. this insert is removed when changing blade and put back to make the opening smaller
Tracking controle handle and lock (band saw)
usually mounted at the back of upper wheel. this mechanism controls the tilt of upper wheel. has lock mechanism
Blade guides (band saw)
prevent blade from moving sideways or twisting when cutting a curve.
blade support (band saw)
located behind the blade and prevents blade from being pushed off the wheels as the work is fed into the blade
Lower blade guide assembly located? (band saw)
under the table has three basic parts
two side guides and one blade support
Blade guard (band saw)
attached to the assembly and protects you from touching the blade above the blade guides.
tilt table (band saw)
mechanism that allows you to tilt table from 0-45 degrees.
Wheel Guard (band saw)
the upper and lower wheel guard protect you from the wheels of the band saw. both wheels are removable to change blades
wheel tires
both upper and lower wheels have a rubber tire. rubber protects teeth of blade and provides traction for drive wheel and blade
Ripping on band saw
to get best results rest hand on table and use thumb as mini fence
Lead (band saw)
if the teeth are sharper on one side compared to the other then blade will wander towards the sharp side. carpenter must compensate for lead.
Ripping dowels (band saw)
rounded stock tends to rotate during a cut. causing the sides to be spiralled. to prevent this use a vertical splitting bar behind the blade. clamping a block with a v channel and nail poking through will allow the cut to not spiral.
Ripping small sections of dowels (band saw)
clamping two blocks to either side of dowel so it sites flat on table will allow you to rip dowel without spiral
Bevel cuts on band saw
table is tilted to desired angle
make a test cut and check with a protractor
Cross cutting and mitring with band saw
should not be done BUT if they have to then carpenter can free hand OR with the help of a mitre gauge.
Circle cutting on band saw
always start cut across the grain.
circle should be laid out so that the line is approximately 6mm (1/4”) from the edge of stock because a poor blade will runout
circle cutting jig procedure (band saw)
- drive a nail into the plywood to act as the circles pivot point. this must be perpendicular to front of the saw. the distance from nail to blade is radios of circle.
- Drill a small hole in centre of the circle. make sure its one radius length from one edge and slightly more from the other three edges
- place the board with its centre hole over the nail. place the shortest side towards the blade. to cut the circle rotate the work clockwise until the full circle is cut.
- if you find the blade is leading to the left adjust the jig so the pivot point is slightly ahead of the blade
- if it is leading to the right, move the pivot point slightly behind the cutting edge of blade.
Cutting curves (band saw)
requires blade to have little or no set
Make relief cuts
if a blade for band saw has little to no set will it cut in only a straight line? T or F
true
when do you make relief cuts (band saw)
before you start cutting
what do you do if you need to make a sharp internal corner while cutting on a band saw?
pre drill holes at corner
Three different types of blades for band saw
Fabric cutting blades
Metal cutting blades
Wood cutting blades
Fabric cutting blades (band saw)
has a wavy curvey blade used for slicing through material not leaving a saw kerf
Metal Cutting blades (band saw)
- will be labeled as metal cutting blade and will have 14 to 24 teeth per 25 mm
Coarsely- toothed metal blades for band saw are used to cut…
brass copper and aluminum, metals that do not spark
Teeth on metal cutting blades have three different types (band saw)
- wavy set
- Regular set
- Every tooth set
Regular Wood cutting blades (band saw)
had 4 to 10 teeth per 25mm
this results in a cut with two smooth sides and allows for interact cutting
Skip tooth wood cutting blade (band saw)
has 1 to 6 teeth per 25mm
this is used for ripping or re cutting thick stock
Control switch (drill press)
turns power on and off
Quill (drill press)
Inside the head of the drill press there is a vertical sleeve called the quill. contains a rotating shaft where the chuck and drill bit are attached.
quill clamp(drill press)
used to lock quill in position
Depth stop (drill press)
used to stop drill when holes need to be exact depth.
Feed lever (drill press)
feed lever rotates the pinion shaft
Pinion Shaft (drill press)
moves the quill up and down while drilling a hole
Spindle (drill press)
is a rotating shaft that is inside the quill
Chuck (drill press)
mounted at the bottom of the spindle, this holds the drill bit. can hold bits up to 12mm
Table (drill press)
supports the work.
can be raised or lowered
can tilt to allow for angled holes
Table clamp (drill press)
holds the table to the column. when the clamp is loose, the table can raise and lower and swing left to right.
Column(drill press)
vertical shaft that supports the table and head
Base (drill press)
Bass supports the column it should be fastened tho the floor.
Belt guard (drill press)
transfers power from the motor to the spindle. the belt is usually mounted on a pair of step pulleys. this is located at the top of the drill press and protects the entire belt system
Drilling holes in metal
Lay out location
smaller holes may require punch
for larger holes you may need to drill pilot holes
use lube while drilling into metals.
Drilling holes in wood (drill press)
sharp bit and correct speed. too slow and it will tear the wood, too fast and it will burn the wood.
when boring completely through a piece of wood place scrap piece behind it so that it does not tear the piece
Hole saw bit
Ready available in sizes ranging from 3/4-4”
Spade bit
also called a speed bore, relies of tearing rather then cutting action
Plug cutter
used to make plugs and shot dowels.
Multispur bit
is equipped with brad point and a number of teeth on its perimeter.
Auger bit
used for boring deep holes in wood.
Forstner bit
used for making holes with flat bottom.
Mortising bit
used to make rectangular holes
