Wood Turning Machines 303d Flashcards
A solid heavy base is desirable on a lathe because it?
dampens the vibrations
A standard wood lathe consists of a base and cabinet what else?
Motor
Headstock
Tool Rest
Tool Rest Base
Bed
Tailstock
What is the purpose of an indexing pin lock
Locks the pulley firmly in position at regular intervals for fluting or similar operations.
What happens if you forget to disengage the indexing pin and start the machine?
You may bend or break the pin.
How is the spindle in the headstock machined ?
Hollow and is machined with a Morse taper to accept a spur centre
How do you sharpen a spur center point?
Toss it in a drill turn at high speeds while bringing into contact with a spinning grinding wheel
Number of cutting jaws on a Spur centre
4
Describe outboard turning
Done on the left side(outside) of the headstock. this may be required if the piece you try to turn is to wide and would come in contact with the lathe bed.
What moves the quill in a Tailstock
Hand wheel
Why would you kerf the left end of a spindle blank ?
To help the insertion of the spur centre
How do you set a Spur Centre in you piece
1.Remove Spur Centre from spindle
2.Centre on kerfed end
3.Hit Spur Centre with a mallet
4.Make pencil mark where Allan key location is.(Spur can be removed and put back in exact same spot as needed)
How do you set a Dead Centre
- Start machine slow
2.Slowly feed Dead Centre into blank. - Back off about 1/8 turn
- Apply oil
Tool rest distance from blank ?
3mm above centre
3mm away from blank
Basic set of woodturning chisels would include?
Roughing gouge
Spindle gouges
Bowl gouges
Parting tool
Skewed parting tool
Round nose chisel
Square nose chisel
Spear point chisel
The degree of curvature in a gouge is known as the?
Sweep
out-cannel gouge vs in-cannel gouge
Out-cannel the bevel is on the outside of the curve
In-cannel the bevel is on the inside of the curve
Difference between a milled and forged gouge
If the Gouge is thicker near the middle of the curve it is Milled.
T or F it is harder to sharpen a forged gouge than a milled?
F
Spindle Gouge bevel angle is
30-45 degrees
Spindle gouge Has a flat face T or F
F
What is a parting tool used for
To separate different types of cuts when turning and to establish diameter and landmark points.
If a tool is ground with a single bevel its a ? If it has 2 bevels its a ?
1.Chisel
2.Parting tool
Which Gouge will produce a ridged cylindrical shape rapidly
Roughing gouge
What tool would you use to create a shoulder when turning?
Parting Tool
Types of cuts made on the lathe
-Cylinders
-Coves
-Beads
-Tapers
-Bellies
-Wastes
-Shoulders
-V-grooves
Once all you cuts are laid out on your cylinder what tools would you use to cut and check all of your minimum diameters.
Parting Tool and Calipers to check diameter
Back Knife lathes are common in the production of ?
Baseball Bats and Drum Sticks
How would you mount a blank when starting to make a bowl
On a faceplate
In order to finish turning the base of a bowl what can be used to hold the bowl
Chuck
Purpose of gap between headstock and bed?
To allow space for turning wider blanks such as bowls without coming into contact with the lathe bed.
(if blank is still to wide you should outboard turn)
How is the Quill machined
To accept a live or dead centre that has a morse taper machined into the left end.
How do you set a tailstock with a Live centre
1.move the tailstock till the live centre is about 10mm from the blank centre
2.Use the handwheel to move the live centre into the work piece.
3. Tighten until centre rim cup is seated
What causes a dead centre to burn and wander?
Lack of lubrication
Common Parting tool sizes
1/4” 1/8” or thinner
When turning what kind of cut is the mirror image of a cove ?
A Bead
Name of curve created in reference to Bellies and Waist cuts when turning
Ogee curve
Device used to help provide additional 2-3 points of support when turning
Steady Rests
How does a Back knife Lathe cut
-First cuts made with gouge knife for rough shape
-Back knifes shear downward at a steep angle gradually reaching max cut depth.
-Each profile requires its own set of knifes
The CNC Lathes work well for?
Producing spindles
Fluting
Rope detailing
Spirals
Other specialized effects
