Difference between revisions of "CNC Machined Parts"

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=Getting Your Design Started=
 
=Getting Your Design Started=
Protocase Designer now includes a "Machined Shapes" category under templates. <br>
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Protocase Designer now includes a <b>Machined Shapes</b> category under templates. <br>
  
To begin, select the "Machined Cube" template, you can export more shapes & templates to come in the future! <br>
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To begin, select the <b>Machined Cube</b> template as your starting point.<br>
[[File:Diecast_template_list.png|800px]]
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[[File:machined_shapes.png|800px]]
  
As these are pre-fabricated enclosures with set dimensions, you cannot edit the enclosures dimensions as you would with any other Protocase Designer sheet metal template. The hardware tab is also disabled as there are no hardware features for you to modify.
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You can customize the finish, material, and dimensions of your part, as well as add [https://www.protocase.com/products/materials-components-finishes/finishes/chemconv.php Chemical Film Conversion Coating] for Aluminum, and [https://www.protocase.com/products/materials-components-finishes/finishes/passivation.php Passivation] for Stainless Steel. Click on the Extras tab and check the box labelled Chemical Conversion Coating or Passivation. <br>
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[[File:chem_film_cnc_cube.png|500px]]
  
You can customize the finish of each part, as well as add [https://www.protocase.com/products/materials-components-finishes/finishes/chemconv.php | Chemical Film Conversion Coating]. Click on the Extras tab and check the box labelled Chemical Conversion Coating. <br>
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Once you've selected your desired material, finish and dimensions - click the "Start Designing" button to view your part in 3D and begin making some edits!
[[File:Chem_film.png|500px]]
 
  
=Customizing Your Diecast Enclosure=
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=Creating Your First Sketch=
Once you have selected your template, you can start customization.
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A Sketch is the starting point of most designs. Think of it like drawing a 2D shape on paper. In CAD software, a sketch is created on a flat surface (like the face of a part or a base plane) and consists of lines, circles, arcs, and other geometric shapes. These 2D outlines are the foundation for creating 3D features like holes, pockets, or solid bodies.
  
In the 3D view, you need to first select the face which you want to customize. You can do so by clicking on Edit Face and selecting the face to edit. <br>
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Example: You might sketch a circle to define the base of a cylinder, or a rectangle to later cut a pocket into a part.
[[File:Edit_face.png|600px]]
 
  
=Adding Cutouts=
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In the 3D view, you need to first select the face which you want to create a sketch on. You can do so by clicking on <b>New Sketch</b> and selecting the face. <br>
When working with diecast enclosures, it is possible to incorporate cutouts or through holes/features. By adding a rectangle cutout, it will be treated as a through-feature by default. This means that the cutout will be a pocket extending to the full depth of the material, effectively cutting all the way through.
 
  
There are three basic types of cutouts available for these enclosures:
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<b>Note:</b> You can have multiple sketches on the same face.
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[[File:create_sketch_example.png|600px]]
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==Drawing 2D Shapes==
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After selecting your face to draw your sketch on, it will open up the 2D sketch editor. For a more detailed look at this window, see [https://www.protocasedesigner.com/wiki/index.php?title=Face_Editor#Face_Editor_overview Face Editor Overview]
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The following are the different shapes you can draw in your sketch:
 
* Circle
 
* Circle
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* Ellipse
 
* Rectangle
 
* Rectangle
 
* Line
 
* Line
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* Arc
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* Custom Path
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[[File:sketch_draw_types.png]]
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To begin drawing shapes, select your desired shape from the DRAW menu above, hold left click and drag your mouse to start drawing the path. Release your mouse button to finish the shape.
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Once you're happy with your sketch, click <b>Save</b>
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[[File:drawing_2D_shapes.gif | 1200px]]
  
[[File:Cutout_types.png]]
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Back in the 3D view, your newly created sketch will be visible indicated by the red outlines on the face.
  
If you want to adjust the depth of your feature, you can do so by entering your required value into the Depth tool under the Properties window on the right-hand side: <br>
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[[File:3d_sketch_view.png | 1200px]]
[[File:Depth_example.png]]
 
  
Protocase Designers built in design checks feature will advise you if the pocket you've created cannot be manufactured. <br>
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== Edit Existing Sketches ==
[[File:Design_checks.png]]
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Once you have a sketch drawn, if you want to modify something afterwards there are two ways to go about it.
  
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<b>Note: Editing any sketch that has an operation already applied to it, will update the operation automatically!</b>
  
=Adding Graphics=
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1. Machining Tree:
You can add the following graphic items to your enclosures:
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* On the left side of the editor is the machining tree, which shows a list of your operations & sketches. Find the sketch you want to modify and right click it, then choose <b>Edit Sketch</b>
* Circle
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[[File:edit_sketch_tree.png]]
* Rectangle
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* Line
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2. Sketch Selection Dialog
* Text
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* When selecting "New Sketch" on a face that already has a sketch present, you'll be prompted with a dialog and the options to continue creating a new sketch on this face, or to choose one of the existing sketches to edit. If you proceed with "Edit Existing" then it will just display that sketch in the 2D editor as mentioned above.
* Images (Vector Preferred)
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[[File:sketch_selection_dialog.png | 800px ]]
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=Applying Operations=
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An Operation is a step in the CAD model that modifies the geometry of the part. Each operation is based on a 2D sketch. Think of operations as building blocks stacked one after the other to shape your final part.
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Usage: Common operations include extrusion, cut, fillet, and hole. For example, “Extrude this sketch” or “Pocket this area.” Each operation modifies the part and appears in the feature history or timeline.
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To apply an operation to a sketch, right click on the sketch from within the machining tree, and hover the <b>Operations</b> menu, and click your desired operation.
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<b>Note: if an operation is disabled, it means your sketch is not compatible with the operation. For instance, the Hole operation is disabled if your sketch does not contain any circle paths.</b>
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[[File:apply_operations.png]]
  
[[File:Graphic_types.png]]
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==== Wireframe View ====
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While applying an operation, you will see a transparent red "preview" shape that the operation generates within the model. It's often useful to view your model in <b>Wireframe</b> mode during this, as it gives you a better representation of how the operations shape will change your geometry. This can be done by going to the <b>View</b> tab in the editor, and clicking <b>Wireframe</b>.
  
Note: When working with Text, you can modify the font properties by using the Font Editor found in the properties window on the right-hand side of the 2D editor.
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[[File:apply_operation_preview.gif | 1000px]]
  
To place common graphic symbols from our library manager, click on the drop-down box under LIBRARY in the top-right corner. Select Graphics, and click Go. <br>
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In Protocase Designer we have the following operations:
[[File:Graphics_library.png]]
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=== Cut Operation ===
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* The Cut Operation is used to create pockets, they can be either <b>blind-pockets</b> (fixed depth, doesn't cut all the way through) or <b>through-pockets</b> (cuts straight through to the other side)
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* You can enter the <b>Cut Amount</b>, which controls how deep the pocket will go, or choose <b>Cut-Through</b> which will automatically cut straight through to the other side of the part.
  
Once you are in the Library Manager, you will see various types of common graphics symbols ready to use in your enclosure. <br>
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=== Extrude Operation ===
[[File:Graphics_library_2.png|700px]]
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* Extrude Operation takes a 2D sketch and pushes or pulls it into 3D space to add or remove material. You can extrude a shape outward to create solid material, or inward to remove material.
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* You can choose the extrusion amount as well as flipping the direction inward and choosing to make a cut.
  
=Corner Radius=
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=== Hole Operation ===
There are minimum corner radius values to ensure that we machine your diecast enclosure efficiently. Protocase Designer will automatically apply our recommended corner radii based on the area of the cutout.
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The Hole Operation is used to create different hole features, such as:
  
If you require a different corner radius than what Designer has given your cutout, simply enter it into the CornerRadius tool under Properties. Once you enter your own value, Designer will not override it until you enter 0 into the tool again, which will revert back to using our recommended values.
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* <b>Countersink</b>
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** A Countersink is a conical-shaped recess at the top of a hole, designed for flat-head screws to sit flush with or slightly below the surface.
  
If you enter an invalid value, you will be prompted with an error: <br>
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* <b>Counterbore</b>
[[File:Corner_radius_error.png]]
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** A Counterbore is a flat-bottomed, larger-diameter section at the top of a drilled hole, designed to recess the head of a socket-head or hex bolt so it sits flush or below the surface.
  
=Cut Direction=
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* <b>Tapped Hole</b>
With diecast enclosures, you can choose whether you want your pocket or cutout to be cut as normal to face, or normal to plane. Use the drop down under Properties to make your desired selection.<br>
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** A Tapped Hole is a drilled hole that also has threads cut inside it, allowing a screw or bolt to be fastened directly into the part without needing a nut.
[[File:Cut_direction_tool.png]]
 
  
If you want to think about cut direction in really simple terms, normal to plane means the cutting plane is straight on, almost as if it's normal to the bottom surface of the enclosure.
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* <b>Drilled Hole</b>
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** A Drilled Hole is the most basic type of hole—made using a drill bit that cuts straight down into the material. The sides of the hole are cylindrical, and the bottom may be either flat or slightly pointed, depending on the tool used.
  
Normal to face, on the other hand, means the cut direction is normal to the face of the enclosure, which has a two-degree angle. You may have heard of this referred to as the draft angle.
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=== Fillet Operation ===
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* A Fillet is a smooth, rounded transition between two surfaces or edges, usually applied to corners. Instead of leaving a sharp corner where two faces meet, a fillet adds a gentle curve.
  
Clicking on the question mark next to the Cut Direction tool inside the software will give you an illustrative description of the differences between the two (figure below). <br>
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==== Edge Selection ====
[[File:Cut_direction_example.png|1000px]]
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* To select an edge to apply a fillet, left click on it. To select multiple edges, hold <b>SHIFT</b> and left click them.
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* To clear your selections, hold shift and left click in an empty area in the editor.
  
=Constraints=
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==== Applying Fillets ====
Below is a list of current features & constraints that are unavailable at this time in Protocase Designer for Diecast Enclosures:
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* To apply a fillet to a corner or edge in your design, do the following:
* Can only edit the outside faces of an enclosure. Currently you are unable to edit the inside, and selecting Edit Face on the inside of an enclosure will result in the following error being displayed:
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# Select one or more edges
** [[File:Templated_face_error.png]]
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# Click <b>Machining Tools</b> tab in the 3D editor toolbar.
* Unable to place fasteners. At this time users will not be able to place their own fasteners into the face of a Diecast Enclosure. Doing so will be result in the following error being displayed:
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# Click the <b>FILLET</b> button.
** [[File:Fasteners_error_msg.png]]
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# Enter your desired corner radius value and click <b>OK</b>
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[[File:fillet_example.gif | 1000px]]

Latest revision as of 14:15, 23 June 2025

Now you can design fully finished machined parts and have them in hand in as little as 2-3 days, directly within Protocase Designer!
https://www.protocase.com/products/cnc-machining/

Getting Your Design Started

Protocase Designer now includes a Machined Shapes category under templates.

To begin, select the Machined Cube template as your starting point.
Machined shapes.png

You can customize the finish, material, and dimensions of your part, as well as add Chemical Film Conversion Coating for Aluminum, and Passivation for Stainless Steel. Click on the Extras tab and check the box labelled Chemical Conversion Coating or Passivation.
Chem film cnc cube.png

Once you've selected your desired material, finish and dimensions - click the "Start Designing" button to view your part in 3D and begin making some edits!

Creating Your First Sketch

A Sketch is the starting point of most designs. Think of it like drawing a 2D shape on paper. In CAD software, a sketch is created on a flat surface (like the face of a part or a base plane) and consists of lines, circles, arcs, and other geometric shapes. These 2D outlines are the foundation for creating 3D features like holes, pockets, or solid bodies.

Example: You might sketch a circle to define the base of a cylinder, or a rectangle to later cut a pocket into a part.

In the 3D view, you need to first select the face which you want to create a sketch on. You can do so by clicking on New Sketch and selecting the face.

Note: You can have multiple sketches on the same face.

Create sketch example.png

Drawing 2D Shapes

After selecting your face to draw your sketch on, it will open up the 2D sketch editor. For a more detailed look at this window, see Face Editor Overview

The following are the different shapes you can draw in your sketch:

  • Circle
  • Ellipse
  • Rectangle
  • Line
  • Arc
  • Custom Path

Sketch draw types.png

To begin drawing shapes, select your desired shape from the DRAW menu above, hold left click and drag your mouse to start drawing the path. Release your mouse button to finish the shape.

Once you're happy with your sketch, click Save

Drawing 2D shapes.gif

Back in the 3D view, your newly created sketch will be visible indicated by the red outlines on the face.

3d sketch view.png

Edit Existing Sketches

Once you have a sketch drawn, if you want to modify something afterwards there are two ways to go about it.

Note: Editing any sketch that has an operation already applied to it, will update the operation automatically!

1. Machining Tree:

  • On the left side of the editor is the machining tree, which shows a list of your operations & sketches. Find the sketch you want to modify and right click it, then choose Edit Sketch

Edit sketch tree.png

2. Sketch Selection Dialog

  • When selecting "New Sketch" on a face that already has a sketch present, you'll be prompted with a dialog and the options to continue creating a new sketch on this face, or to choose one of the existing sketches to edit. If you proceed with "Edit Existing" then it will just display that sketch in the 2D editor as mentioned above.

Sketch selection dialog.png

Applying Operations

An Operation is a step in the CAD model that modifies the geometry of the part. Each operation is based on a 2D sketch. Think of operations as building blocks stacked one after the other to shape your final part.

Usage: Common operations include extrusion, cut, fillet, and hole. For example, “Extrude this sketch” or “Pocket this area.” Each operation modifies the part and appears in the feature history or timeline.

To apply an operation to a sketch, right click on the sketch from within the machining tree, and hover the Operations menu, and click your desired operation. Note: if an operation is disabled, it means your sketch is not compatible with the operation. For instance, the Hole operation is disabled if your sketch does not contain any circle paths.

Apply operations.png

Wireframe View

While applying an operation, you will see a transparent red "preview" shape that the operation generates within the model. It's often useful to view your model in Wireframe mode during this, as it gives you a better representation of how the operations shape will change your geometry. This can be done by going to the View tab in the editor, and clicking Wireframe.

Apply operation preview.gif

In Protocase Designer we have the following operations:

Cut Operation

  • The Cut Operation is used to create pockets, they can be either blind-pockets (fixed depth, doesn't cut all the way through) or through-pockets (cuts straight through to the other side)
  • You can enter the Cut Amount, which controls how deep the pocket will go, or choose Cut-Through which will automatically cut straight through to the other side of the part.

Extrude Operation

  • Extrude Operation takes a 2D sketch and pushes or pulls it into 3D space to add or remove material. You can extrude a shape outward to create solid material, or inward to remove material.
  • You can choose the extrusion amount as well as flipping the direction inward and choosing to make a cut.

Hole Operation

The Hole Operation is used to create different hole features, such as:

  • Countersink
    • A Countersink is a conical-shaped recess at the top of a hole, designed for flat-head screws to sit flush with or slightly below the surface.
  • Counterbore
    • A Counterbore is a flat-bottomed, larger-diameter section at the top of a drilled hole, designed to recess the head of a socket-head or hex bolt so it sits flush or below the surface.
  • Tapped Hole
    • A Tapped Hole is a drilled hole that also has threads cut inside it, allowing a screw or bolt to be fastened directly into the part without needing a nut.
  • Drilled Hole
    • A Drilled Hole is the most basic type of hole—made using a drill bit that cuts straight down into the material. The sides of the hole are cylindrical, and the bottom may be either flat or slightly pointed, depending on the tool used.

Fillet Operation

  • A Fillet is a smooth, rounded transition between two surfaces or edges, usually applied to corners. Instead of leaving a sharp corner where two faces meet, a fillet adds a gentle curve.

Edge Selection

  • To select an edge to apply a fillet, left click on it. To select multiple edges, hold SHIFT and left click them.
  • To clear your selections, hold shift and left click in an empty area in the editor.

Applying Fillets

  • To apply a fillet to a corner or edge in your design, do the following:
  1. Select one or more edges
  2. Click Machining Tools tab in the 3D editor toolbar.
  3. Click the FILLET button.
  4. Enter your desired corner radius value and click OK

Fillet example.gif