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<h1><a >Computer Controlled Cutting</a></h1>
<span>Assignment 3</span>
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<h2 style="color:blueviolet">Computer Controlled Cutting </h2>
<h3 style="color:crimson"> <strong> </strong></h3>
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<h4>3-Week Task </h4>
<p style="justify-content: center"><strong> group assignment:characterize your lasercutter's focus, power, speed, rate, kerf, and joint clearance <br>
individual assignment:cut something on the vinylcutter design, lasercut, and document a parametric construction kit,accounting for the lasercutter kerf,
which can be assembled in multiple ways, and for extra credit include elements that aren't flat </strong> </p>
<h4> Introduction </h4>
<p style="justify-content: center"><strong> The Computer controlled machining is a subtractive manufacturing process which typically employs computerized controls and
machine tools to remove layers of material from a stock piece—known as the blank or workpiece—and produces a custom-designed part.This process is suitable for a wide range of materials, including metals, plastics, wood, glass, foam, and composites, and finds application in a variety of industries <br>
In the last assignment, the different tools are used for 2D and 3D design. In this assignment, we have to cut this 2D design by using different cutting tools.
The commonly used tools for cutting are knife, laser, plasma,waterjet,hotwire,wireEDM etc.So in this assignment particullary we are studied lasser cutter and vinylcutter. In laser cutting
we have conduted one group assignment and one individual assignment. In group assignment, we have studied about lasercutter's focus, power, speed, rate, kerf, and joint clearance.
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<h4>Laser Cutting</h4>
<p style="justify-content: center"><strong> The term LASER is known as Light Amplification by Stimulated Emission of Radiation i.e. device that generates an intense beam of coherent monochromatic
light (or other electromagnetic radiation) by stimulated emission of photons from excited atoms or molecules. Lasers are used
in drilling and cutting, alignment and guidance, and in surgery; the optical properties are exploited in holography, reading barcodes, and in recording and playing compact discs.
The different gases CO2 (10.6 u), fiber (1-2 u), InGaAsP (1-2 u),AlGaAs (600-900 nm), Nd:YAG (1064, 532 nm), Ti:sapphire (650-1100 nm) are used in Laser Machine.<br>
The machine available in our Fab Lab as folowing specification:<br>
Model No:1325 – 1318 <br>
Laser Type:Co2 DC Glass laser Tube <br> Laser Power:80 Watt <br>Processing Area(Bed size):900 x 600 mm <br>Working Speed :Adjustable <br>
Power Supply: Single Phasehase AC 230V, 50HZ <br>
Software: RDWorksV8 <br>File Format Supported: .dxf .obj .svg </strong></p>
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<p style="justify-content: center"><strong> The parametric design is created in FreeCAD. How the design is created that i have explained in assignment2 </strong></p>
<p style="justify-content: center"><strong> Now this design is imported in Laser machine software i.e. RDWorksV8. so lets see how it is imported from FreeCAD
Software<br> Firstly select the Draft workbench in dropdown menu</strong></p>
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<p style="justify-content: center"><strong> Then export the image, save the image in .dxf formatt at anywhere </strong></p>
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<p style="justify-content: center"><strong> Then open the RDWorksV8 software>file menu>import>select the exported file of FreeCAD>it will get open here </strong></p>
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<p style="justify-content: center"><strong>Right side>mode>cut>select the speed and power >here i choose Speed:40 mm/sec and Power:70% of Max. Power </strong></p>
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<p style="justify-content: center"><strong> Then arrange the images on worksheet so that will be minimum wastage on material </strong></p>
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<p style="justify-content: center"><strong>Now start the Laser Cutting Machine by following this steps<br>
Mains(Power Supply)→Isolation transformer→UPS→Air compresser→cooler→mains(laser)→Laser on→Exhaust on→Lamp→redbeam on→Interface
with computer→download the file→start →</strong></p> <div class="row">
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<p style="justify-content: center"><strong> Set the X,Y & Z direction of Laser Beam>after setting press Origin>select the file, in File menu, press Enter> press Frame, just the check the cutting area
(if the cutting outside the material adjust it, again press origin)> press Start/Pause button> cutting will get start. </strong></p>
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<p style="justify-content: center"><strong> After cutting the object, i tried to assembled the object in different ways<br> ohh its nice! </strong></p>
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<h4>Vinyl Cutting</h4>
<p style="justify-content: center"><strong> A vinyl cutter is a type of computer-controlled cutting machine.
Small vinyl cutters look like a desktop printer. Like a printer controls a nozzle, the computer controls the movement of a sharp blade over the surface of the material.
This blade is used to cut out shapes and letters from sheets of thin self-adhesive plastic (vinyl).
The vinyl can then be stuck to a variety of surfaces depending on the adhesive and type of material. <br>
The Vinyl cutter availble in our Fab Lab have the following specification<br>
Driving Method: Media-movement method Stepping motor (Micro-step)<br>
Maximum cutting area: Width:584 mm Length: 24998 mm <br>
Tools:Cutters: Special cutter for CAMM-1 series, Pens: Water-based fiber-tipped pens <br>
Max. cutting speed: During cutting: 400 mm/sec. <br>
Blade force: 30 to 200 gf </strong></p>
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<h4> What i learn? </h4>
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</strong> </p>
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<p>Go to the <a href="Introduction">top</a></p>
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<h2>Content</h2>
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<li class="first"><span class="fa fa-check"></span><a href="#Introduction">3-Week Task</a> </li> <br>
<li><span class="fa fa-check"></span><a id="Abstract" href="#Abstract">Introduction</a></li><br>
<li><span class="fa fa-check"></span><a href="#">Laser Cutting </a> </li><br>
<li><span class="fa fa-check"></span><a href="#">Vinyl Cutting </a></li><br>
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<li class="first"><a href="assignment2.html">Assignment 2</a></li> <br>
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<li><a href="#">Assignment 18</a></li> <br>
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