Micro SD Card Reader 3D Model

by Aelmar in Workshop > 3D Printing

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Micro SD Card Reader 3D Model

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In this project, I will be recreating a MicroSD card adapter using Tinkercad to 3D model it.

Supplies

A computer with an internet connection

The Tinkercad website

Create New Design

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Go onto the Tinkercad website and click “create new design”


Create the Base Model

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On the workspace, drag in a cube shape and make its dimensions 32mm long x 24mm wide x 2.1mm thick (the dimensions of a normal SD card).

Create the Angled Cutout

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Drag a triangular prism shape into the workspace, turn it 90 degrees upwards, turn the shape into a hole, and move it to the top left corner of the rectangular prism

  1. It’s important to make sure that it is cutting off 4mm from both the length and width of the rectangular prism, you can check to make sure by using the ruler tool (the L shape in the top right corner) and counting how many ticks the triangle is in the base model (1 tick = 1mm)
  2. These shapes will be grouped together by selecting both the shapes and using the group tool (the combined circle and square on the top right of the screen)


Creating the Bottom Ridges

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Drag another cube into the workspace, make it 6mm long x 2mm wide, this shape will be copied and pasted 8 times to create the ridges on the bottom of the SD card

  1. There will be an extra rectangular prism at 4mm wide instead of 2mm wide for the ridge at the very end
  2. One of the ridges (the one placed at the angled cutout) will be 2mm longer than the rest (at 8mm long).
  3. These ridges will be spaced 0.25mm away from each other
  4. These shapes will be combined using the same group tool from earlier


Creating the Side Rails

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Now to create the rails on the sides of the SD card, we will need to make 2 rectangular prisms as long as the SD card (32mm) x 1mm wide x 1mm thick and move them only 0.5mm deep into each side of the SD card and group the shapes together

  1. Using the align tool (the two bars in the top right) will be helpful in making sure the ridges are correctly placed


Creating the Side Ridges

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Drag 2 more cubes into the workspace, make one of them 7mm long x 3.95mm wide x 2.1 mm thick, this shape will be a cutout on the non-angled side of the SD card

  1. Make the next cube 1mm long x 3.95m wide x 2.1 mm thick, this shape will be a cutout on the angled side
  2. Turn the shapes into holes
  3. Move the bigger shape 7mm below the top of the SD card and the smaller shape 9mm below the top
  4. Move each shape 1mm into the SD card and then select all the shapes and group them together


Create the Locking Mechanism

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Drag 3 cubes into the workspace

a. Make the first cube 7mm long x 0.8mm wide x 0.3mm thick

b. Make the next cube 7mm long x 0.4mm wide x 0.3mm thick

c. Group these shapes together, copy and paste the grouped shape, and turn the original into a hole to group with the SD card

d. Make the third cube 2.5mm long x 1mm wide x 1mm thick

e. Make the copied version of the first shape 1mm long

f. Align these 2 shapes, group them together, and put it in the newly created hole for it

Create the MicroSD Cutout

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Drag 2 cubes, a semicircle, and a triangular prism into the workspace

a. Make the first cube 15mm long x 11mm wide x 1mm thick

b. Turn the triangular prism 90 degrees upwards, make its dimensions 3.75mm long x 7.40mm wide

c. Make the second cube 3.75mm long x 12.4mm wide and group the two shapes, turn the grouped shape into a hole and copy and paste another one

d. Reduce the size of the copied hole to 1.6mm long x 2.64mm wide

e. Move the bigger hole to the top right corner of the base of the MicroSD card and the smaller hole slightly below the first hole, and group all of them together

f. Make the semicircle 3.4mm long x 11.1mm wide

g. Group the MicroSD card and the semicircle together and turn the finalized MicroSD card into a hole

h. Bring the finalized shape to the back of the SD card and group them together