Cold Saw: Difference between revisions

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=Cold Saw - Embedded Data=
=CAD=


<html><iframe width='1200' height='300' frameborder='0' src='
[[File:coldassy.jpg|500px]]


<script src="https://github.com/openspeed/Cold-Saw"></script>
See corresponding blog post for details - [https://www.opensourceecology.org/open-source-cold-saw-first-prototype-test/].


'></iframe>
Download source CAD and supporting files: [[File:Coldsaw.zip]]. Note that all part files + overall assy are available, but only in Solidworks (old work prior to FreeCAD as OSE's standard). Useful work here would involve exporting files to FreeCAD readable STEP.
</html><br/>


=Introduction=
<html><iframe width="560" height="315" src="https://www.youtube.com/embed//oOjOKw84kAM" frameborder="0" allowfullscreen></iframe></html>


Simply put, the Cold Saw cuts materials.
=Mechanical=
*[[Cold Foundation]]
*[[Cold Vise]]
*[[Cold Swivel Frame]]
*[[Cold Moving Arm]] (including Stopper,  
*[[Cold Blade Mount]]
*[[Cold Blade Guard]]
*[http://www.mcmaster.com/#4190A22 Cold Saw Blade, 350mm (14") dia, 180 teeth, 32mm dia bore]


More specifically, the Cold Saw rotates a circular blade with sharp teeth to chip away at the material being cut.
=Motor Hydraulics=


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.  
*[http://www.surpluscenter.com/item.asp?catname=&qty=1&item=9+7469 31.88 cu. in Hydraulic Motor from SurplusCenter]
*[http://www.surpluscenter.com/item.asp?item=928&catname=hydraulic 1/2" Quick Connect Pairs] x3
*[http://www.surpluscenter.com/item.asp?item=9-6314&catname=hydraulic 1/4" Quick Connect Pair] x1
*[http://www.surpluscenter.com/item.asp?item=916-1412&catname=hydraulic 1/4" NPTM x 1/4" NPTM Hose, 12" Long]
*[http://www.surpluscenter.com/item.asp?item=9-5404-8-8&catname=hydraulic 1/2" NPTM to 1/2" NPTM] x2
*[http://www.surpluscenter.com/item.asp?item=9-5406-8-4&catname=hydraulic 1/2" NPTM to 1/4" NPTF] x1
*[http://www.surpluscenter.com/item.asp?item=9-5605-8-8-8&catname=hydraulic 1/2" NPTF Tee] x1
*[http://www.surpluscenter.com/item.asp?item=9-6401-10-8&catname=hydraulic 1/2" NPTM to SAE10M] x2
*[http://www.surpluscenter.com/item.asp?item=9-6401-4-4&catname=hydraulic 1/4" NPTM to SAE4M] x1


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.
----


Cold Saw blades can be resharpened many times!
[[File: coldhydraulicreturn.jpg|200px]]
[[File: coldhydraulicreturn2.jpg|200px]]
[[File: coldhydraulicreturn.svg|200px]]


[[Image: ColdSawV1BasCpt.png|200px]]
=Coolant Hydraulics=


=Latest Version: 1=
[http://www.amazon.com/Brushless-Submersible-Water-Ideal-cooling/dp/B0051HI3OM/ref=sr_1_1?s=industrial&ie=UTF8&qid=1354175640&sr=1-1&keywords=submersible+pump 3.6L/min Submersible Pump]


=Index=
[http://www.amazon.com/dp/B000FMWTRU/ref=biss_dp_t_asn Silicone Rubber Tube 1/4" ID, 1/2" OD]


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


=Understand=
12V input suffices.


http://opensourceecology.org/wiki/Cold_Saw/Understand
[[Infrared Distance Sensor Switch]]


=Replicate=
[[File: coldcoolelec.svg|200px]]


http://opensourceecology.org/wiki/Cold_Saw/Build_Instructions
=Old=


=Use=
[https://github.com/openspeed/Cold-Saw Cold Saw Github Repository]


=Troubleshoot=
[https://www.youtube.com/watch?v=oOjOKw84kAM&list=UUjvBN1r7UXXqmIbx_u7bIAw&index=50&feature=plpp_video Explainer Video on Youtube]


=Cold Saw Data Repository at Github=
[https://www.youtube.com/watch?v=gdZhqhhB9d4&list=UUjvBN1r7UXXqmIbx_u7bIAw&index=68&feature=plpp_video Test Cut 2 Video - blade did not loosen, but baseplate was not clamped to table so lots of vibration; fully smooth cut]


https://github.com/openspeed/Cold-Saw
[https://www.youtube.com/watch?v=Bq7grqRt76o&list=UUjvBN1r7UXXqmIbx_u7bIAw&index=83&feature=plpp_video Test Cut 1 Video - blade retaining setscrews not tightened enough so blade loosened; cut halfway smooth]
 
=Temporary=
 
*There is only the need for understanding and replicating for new developers, with an index to ease navigation for experienced developers.
 
http://opensourceecology.org/wiki/Cold_Saw/Build_Instructions/Fabricability_Review
 
http://opensourceecology.org/wiki/Cold_Saw/V1_Design_Rationale
 
http://opensourceecology.org/wiki/Cold_Saw/V1_Design_Files

Latest revision as of 23:24, 26 November 2020