Cold Saw/Understand: Difference between revisions

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=Introduction=
=IN PROGRESS=


Simply put, the Cold Saw cuts materials.
See Cold Saw Index for Specific Design Breakdown:


More specifically, the Cold Saw rotates a circular blade with sharp teeth to chip away at the material being cut.
http://opensourceecology.org/wiki/Cold_Saw/Index


The Cold Saw is "cold" because most of the thermal energy generated during the cutting process is transferred to the chips that are cut off, instead of the blade or the remaining material. That said, the Cold Saw needs coolant to be consistently applied to the blade during operation.
=Design Principles=


Different material compositions, shapes, dimensions all determine how fast the blade should spin (rotation speed) and how quickly the blade should move into the workpiece (feed rate). If the feed rate is too high, the blade is in danger of jamming and breaking. If the feed rate is too low, the blade's durability will not be maximized.
http://opensourceecology.org/wiki/Design_Principles
 
Cold Saw blades can be resharpened many times!
 
[[Image: ColdSawV1BasCpt.png]]
 
=Full Assembly Picture=
 
[[Image: ColdSawV1Full.jpg|500px]]
 
[[Image: ColdSawV1Wire.jpg|500px]]
 
=Rationale=
 
Should the blade move towards the workpiece, or the workpiece move toward the blade, or both?
 
http://opensourceecology.org/wiki/Cold_Saw/V1_Design_Rationale/Basic_Concept/Movement


=Functions=
=Functions=
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Hold the material.
Hold the material.
=General Design Requirements=
Precision requires rigidity.
Functional design avoids interference between mechanisms.


=Objectives=
=Objectives=
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Clamping materials of at least 4" width.
Clamping materials of at least 4" width.


=General Notes=
Precision requires rigidity.


Functional design avoids interference between mechanisms.


=More Information=
=More Information=


http://opensourceecology.org/wiki/Cold_Saw/Understand2
http://opensourceecology.org/wiki/Cold_Saw/Understand2

Latest revision as of 05:47, 1 July 2012

IN PROGRESS

See Cold Saw Index for Specific Design Breakdown:

http://opensourceecology.org/wiki/Cold_Saw/Index

Design Principles

http://opensourceecology.org/wiki/Design_Principles

Functions

Rotate the blade.

Move the blade into the material.

Angle the blade relative to the material.

Hold the material.

General Design Requirements

Precision requires rigidity.

Functional design avoids interference between mechanisms.

Objectives

Precision cuts with surface deviation of less than 0.1mm

Precision center angle locking mechanism with deviation of less than 1 degree

Precision perpendicular descent with vertical cutting plane angled within 1 degree.

Up to 45 degree cuts for at least 1" wide materials.

Clamping materials of at least 4" width.


More Information

http://opensourceecology.org/wiki/Cold_Saw/Understand2

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