Difference between revisions of "Saw"

From DIYWiki
Jump to navigation Jump to search
(Handheld Bandsaw pic link)
(pics, more info, etc)
Line 7: Line 7:
  
 
===Mitre Saw===
 
===Mitre Saw===
 +
[[image:Verstekzaag.jpg|thumb|Manual mitre saw]]
 +
 
* Wood is clamped to the base
 
* Wood is clamped to the base
 
* Frame guides saw blade, keeping it at the chosen angle
 
* Frame guides saw blade, keeping it at the chosen angle
Line 12: Line 14:
 
* Quite different to the electric mitre saw
 
* Quite different to the electric mitre saw
  
−
===Floorboard Saw===
+
===Jack Saw===
−
* Has additional teeth on the top side in an arc near the end
+
* General purpose building saw
−
* Can saw into floorboards in situ
+
* Cuts timber, aerated concrete
  
 
===Toolbox Saw===
 
===Toolbox Saw===
Line 20: Line 22:
 
* Fits in toolboxes
 
* Fits in toolboxes
  
−
===Jack Saw===
+
===Floorboard Saw===
−
* General purpose building saw
+
* Has additional teeth on the top side in an arc near the end
−
* Cuts timber, aerated concrete
+
* Can saw into floorboards in situ
  
 
===Bow Saw===
 
===Bow Saw===
 +
[[image:Bow_Saw_(PSF).jpg|thumb|Bow saw]]
 +
 
* Sawing tree branches
 
* Sawing tree branches
 
* The coarse peg teeth usually used cut on both strokes
 
* The coarse peg teeth usually used cut on both strokes
Line 31: Line 35:
  
 
===Coping Saw===
 
===Coping Saw===
 +
[[image:Coping_saw_(PSF).jpg|thumb|Coping saw]]
  
 
===Crosscut Saw===
 
===Crosscut Saw===
Line 49: Line 54:
  
 
===Two-man saw===
 
===Two-man saw===
 +
[[image:Two_man_saw.JPG|thumb|2 man saw]]
 +
 
* aka pit saw
 
* aka pit saw
 
* Long slightly curved blade with a handle on each end
 
* Long slightly curved blade with a handle on each end
 
* Double the sawing power
 
* Double the sawing power
 
* Very long stroke
 
* Very long stroke
 +
* About the only DIYer accessible saw that can cut whole mature trees into lengths
  
 
===Wire saw===
 
===Wire saw===
−
* Flexible wire with a handle on each end
+
* Flexible saw wire with a handle on each end
 
* Mostly used for veterinary uses (bones, horns)
 
* Mostly used for veterinary uses (bones, horns)
−
* Exceptionally good access properties for difficult cuts
+
* Exceptionally good access properties for difficult cuts, can thread through and round things
 
* Not expensive
 
* Not expensive
−
* You wont get them from DIY suppliers
+
* Not stocked by DIY tool [[suppliers]]
  
  
Line 65: Line 73:
  
 
===Jigsaw===
 
===Jigsaw===
 +
[[image:Decoupeerzaag.jpg|thumb|jigsaw]]
 +
 
* Low cutting speed
 
* Low cutting speed
 
* Can cut curves
 
* Can cut curves
Line 84: Line 94:
 
** Knife
 
** Knife
 
** Grit
 
** Grit
−
** Varying pitch
+
** Varying teeth pitch
  
 
===Circular saw===
 
===Circular saw===
 +
[[image:800px-Cirkelzaag_(Circular_saw).jpg|thumb|Circular saw]]
 +
 
* Fast cutting
 
* Fast cutting
 
* Cuts straight lines only
 
* Cuts straight lines only
−
* Good general purpose DIY saw
+
* Good general purpose [[Special:Allpages|DIY]] saw
−
* Riving knife prevents kickback
+
* Riving [[knives|knife]] prevents kickback
 
* Blades with high number of teeth can produce very smooth cuts
 
* Blades with high number of teeth can produce very smooth cuts
 
* Normally supplied with a guide fence
 
* Normally supplied with a guide fence
 
* Depth of cut and angle can be preset
 
* Depth of cut and angle can be preset
−
* Max possible cutting depth is less with angled cuts
+
* Max possible cutting depth is reduced with angled cuts
  
 
===Mitre Saw etc===
 
===Mitre Saw etc===
−
* aka compound mitre saw:
+
[[image:600px-Mitre_saw_white.jpg|thumb|Compound Mitre Saw]]
 +
 
 +
* Compound mitre saws' blades can swivel in 2 axes for compound angle cuts.
 +
* Fast cutting
 +
* Fairly small max cut width
 +
* Hence mostly used for cross cutting
 
* Circular saw blade
 
* Circular saw blade
 
* Cutting head swivels to cut at various angles
 
* Cutting head swivels to cut at various angles
 
* Cutting head tilts to give cuts angled in 2 axes
 
* Cutting head tilts to give cuts angled in 2 axes
 +
* The quality of these machines varies widely
 
* Plastic bases found on budget machines bend slightly under force, misaligning cuts.
 
* Plastic bases found on budget machines bend slightly under force, misaligning cuts.
 +
* On poor quality machines the saw head may be subject to some unwanted movement
 
* Pushing the saw can violently shatter the fence with some budget machines
 
* Pushing the saw can violently shatter the fence with some budget machines
 +
* Cut width can be roughly doubled if the workpiece is turned over to complete the cut from the other side. The result is pretty good, but not perfect, if care is taken to get good alignment for the second half of the cut.
  
 
===Sliding Mitre saw===
 
===Sliding Mitre saw===
−
Mitre saw with cutting head that slides to cut wider timber
+
* Mitre saw with cutting head that slides to cut wider timber
 +
* Enables longer cuts to be made in larger timber
  
 
===Flipsaw===
 
===Flipsaw===
 
* Mitre saw with a sawhead that flips over to give either a mitre saw or benchsaw
 
* Mitre saw with a sawhead that flips over to give either a mitre saw or benchsaw
  
−
===Chop Saw===
+
===Cutoff Saw===
 
* Look somewhat like mitre saws, but with no angle adjustments
 
* Look somewhat like mitre saws, but with no angle adjustments
 
* Cuts at precisely 90 degrees
 
* Cuts at precisely 90 degrees
Line 123: Line 144:
 
===Spiral saw===
 
===Spiral saw===
 
* eg Rotozip
 
* eg Rotozip
−
* Can plunge eolid materials then drill in any direction
+
* Can plunge into solid materials then drill in any direction
 
* Can not withstand a lot of side force
 
* Can not withstand a lot of side force
−
* [[Die grinder]]s can use 1/8" spiral saw blades, but such thin blades are not robust
+
* Limited uses due to poor performance with a lot of uses
−
* Spiral saws taking 1/8" blades may also take die grinder accessories - check speed ratings
+
* [[Die Grinder]]s can use 1/8" spiral saw blades, but such thin blades are not robust
 +
* Spiral saws taking 1/8" blades also take die grinder accessories - check speed ratings
  
 
===Table saw===
 
===Table saw===
Line 132: Line 154:
 
* Fast feed rate
 
* Fast feed rate
 
* Plastic or wood pushers are used to keep hands away from blade
 
* Plastic or wood pushers are used to keep hands away from blade
 +
* Old table saws lack guarding
  
 
===Bandsaw===
 
===Bandsaw===
Line 140: Line 163:
  
 
===Handheld Bandsaw===
 
===Handheld Bandsaw===
−
* A miniature hand held version of a band saw [http://www.toolbarn.com/product/milwaukee/0729-21/ (pic)]
+
* A miniature hand held version of a band saw [http://www.toolbarn.com/product/milwaukee/0729-21/ (picture)]
−
* No idea about its strengths and weaknesses, anyone used one?
+
* Anyone used one?
  
 
===Tile saw===
 
===Tile saw===
Line 157: Line 180:
 
* Correct type of oil important
 
* Correct type of oil important
 
* Blade should not contact soil
 
* Blade should not contact soil
 +
 +
 +
===Radial arm saw===
 +
[[image:Radial_arm_saw_osha.jpg|thumb|Radial arm saw]]
  
  

Revision as of 14:15, 25 April 2008

Hand saws

Hacksaw

  • 2 types:
    • Junior hacksaw, 6" blades
    • Other one, 12" blades & other sizes

Mitre Saw

Manual mitre saw
  • Wood is clamped to the base
  • Frame guides saw blade, keeping it at the chosen angle
  • Small captive handsaw of some type cuts the timber
  • Quite different to the electric mitre saw

Jack Saw

  • General purpose building saw
  • Cuts timber, aerated concrete

Toolbox Saw

  • Shorter version of jack saw
  • Fits in toolboxes

Floorboard Saw

  • Has additional teeth on the top side in an arc near the end
  • Can saw into floorboards in situ

Bow Saw

Bow saw
  • Sawing tree branches
  • The coarse peg teeth usually used cut on both strokes

Backsaw

Coping Saw

Coping saw

Crosscut Saw

Pullsaw

  • Cut on the pull stroke
  • Blade thinner than pushsaws
  • Less effort for given progress than pushsaws

Fretsaw

Japanese Saw

Keyhole Saw

  • Very narrow blade

Tenon Saw

Two-man saw

File:Two man saw.JPG
2 man saw
  • aka pit saw
  • Long slightly curved blade with a handle on each end
  • Double the sawing power
  • Very long stroke
  • About the only DIYer accessible saw that can cut whole mature trees into lengths

Wire saw

  • Flexible saw wire with a handle on each end
  • Mostly used for veterinary uses (bones, horns)
  • Exceptionally good access properties for difficult cuts, can thread through and round things
  • Not expensive
  • Not stocked by DIY tool suppliers


Power Saws

Jigsaw

File:Decoupeerzaag.jpg
jigsaw
  • Low cutting speed
  • Can cut curves
  • Steer by rotating the saw, never push sideways
  • Quality varies greatly
  • Cheap & midrange jigsaws:
    • Performance generally anything from patchy to dire
    • Blades wander & bend badly
    • Cost of ruined wood over the lifetime of a cheap or midrange jigsaw is likely to exceed the cost of a better saw
    • Not possible to cut a straight line using a guide fence, as they need regular direction correction
  • Good jigsaws:
    • Constrain the blade with rollers
    • Can cut straight lines
    • Much less prone to blade bending, but not immune
  • Various types of blade available:
    • Coarse, medium, fine
    • Blades for wood, metal, plastic, leather, paper products
    • Flush cutting
    • Knife
    • Grit
    • Varying teeth pitch

Circular saw

Circular saw
  • Fast cutting
  • Cuts straight lines only
  • Good general purpose DIY saw
  • Riving knife prevents kickback
  • Blades with high number of teeth can produce very smooth cuts
  • Normally supplied with a guide fence
  • Depth of cut and angle can be preset
  • Max possible cutting depth is reduced with angled cuts

Mitre Saw etc

Compound Mitre Saw
  • Compound mitre saws' blades can swivel in 2 axes for compound angle cuts.
  • Fast cutting
  • Fairly small max cut width
  • Hence mostly used for cross cutting
  • Circular saw blade
  • Cutting head swivels to cut at various angles
  • Cutting head tilts to give cuts angled in 2 axes
  • The quality of these machines varies widely
  • Plastic bases found on budget machines bend slightly under force, misaligning cuts.
  • On poor quality machines the saw head may be subject to some unwanted movement
  • Pushing the saw can violently shatter the fence with some budget machines
  • Cut width can be roughly doubled if the workpiece is turned over to complete the cut from the other side. The result is pretty good, but not perfect, if care is taken to get good alignment for the second half of the cut.

Sliding Mitre saw

  • Mitre saw with cutting head that slides to cut wider timber
  • Enables longer cuts to be made in larger timber

Flipsaw

  • Mitre saw with a sawhead that flips over to give either a mitre saw or benchsaw

Cutoff Saw

  • Look somewhat like mitre saws, but with no angle adjustments
  • Cuts at precisely 90 degrees
  • Workpiece clamp included
  • Abrasive grit blade usually used
  • Primarily used on metalwork

Scroll Saw

  • Vibrating blade can be touched without injury
  • Modern version of fretsaw

Spiral saw

  • eg Rotozip
  • Can plunge into solid materials then drill in any direction
  • Can not withstand a lot of side force
  • Limited uses due to poor performance with a lot of uses
  • Die Grinders can use 1/8" spiral saw blades, but such thin blades are not robust
  • Spiral saws taking 1/8" blades also take die grinder accessories - check speed ratings

Table saw

  • Circular blade
  • Fast feed rate
  • Plastic or wood pushers are used to keep hands away from blade
  • Old table saws lack guarding

Bandsaw

  • Uses a blade consisting of a continuous loop of spring steel, with cutting teeth on one edge. This rotates around two aligned wheels (one of them driven), and passes vertically through a cutting table.
  • Coarse, fine and omnidirectional blades available
  • A typical DIY bandsaw blade of 12mm width allows straight and curved cuts down to about 150mm radius to be comfortably made. Narrower blades allow tighter curves to be cut, but they are more vulnerable to breakage.
  • For accuracy of cutting, the 'set' of the teeth on a bandsaw blade should be properly maintained. Once the 'set' has gone, the blade will tend to wander.

Handheld Bandsaw

  • A miniature hand held version of a band saw (picture)
  • Anyone used one?

Tile saw

  • Miniature table saw with diamond grit tile blade
  • Water cooled blade
  • Replacing the blade might allow it to do other jobs too

Reciprocating saw

  • Powered version of jack saw or hacksaw

Chainsaw

  • Relatively high risk saw
  • Protective clothing is wise
  • Basic training is wise
  • Correct type of oil important
  • Blade should not contact soil


Radial arm saw

Radial arm saw


Reviews

Mitre saws


To Do

Plywood saw Rip saw Saw set


See Also

Wiki Contents

Wiki Subject Categories

Retrieved from "https://wiki.diyfaq.org.uk/index.php?title=Saw&oldid=9007"