How to Get a Distortion-Free Design for Tapered Tumbler
Updated Dec 19,2023
Updated Dec 19,2023
Creating a precise design on a tapered tumbler can be quite challenging. To sidestep the dreaded distortion, you'll need a dash of math and Photoshop skills. So in this tutorial, we'll help you to make your tumbler designs distortion-free.

Calculating the Taper Angle

Before editing, you'll need to acquire your tumbler's taper. Here we have 3 routes to calculate the angle:

  • Online Calculator: If apps aren't your cup of tea, try an online calculator like this one.
  • DIY Calculation: For the mathematically inclined, here's the formula to calculate it yourself: Taper angle=atan(D1−D22×L)

D1: Diameter of the tumbler's larger end

D2: Diameter of the smaller end

L: Length of the tumbler

atan: The arctangent function

This formula yields the cone angle in radians. Convert it to degrees by multiplying by (180/π)

Deform Your Design in Photoshop

With the angle in hand, it's time to mold your design into a tapered tumbler masterpiece in Photoshop.

Preparation

New Canvas: Open Photoshop and create a new document. Set the width to the larger of the tumbler's circumferences and the height to the tumbler's length.

Design within Bounds: Sketch your design. Remember, it'll stretch to fit the taper. 

 

Transform and Twist

Distort and Warp: Navigate to Edit > Transform > Distort> Warp. This lets you non-uniformly deform the image, a must for that tapered look.

 

Arc Style: Switch to Arc style. It lets you curve the image, adapting it to the taper.

 

Input the Values

Bend & V-Values:

  • Set Bend to 0 to avoid initial distortion.
  • V-value is the warp percentage, not an angle. The formula here is (2×angle)−2.22

 

  • Apply the Warp: Input your calculated V value and apply the transformation. Your round logo now compensates for the taper.
  • Check and Adjust: After warp, ensure the size is right. Keep the aspect ratio intact to avoid any new distortions. If needed, resize it to match the dimensions of your engraving target.

 

Import Into XCS Software

Export your creation in a format compatible with XCS and import it. Now you're ready to craft distortion-free designs tailored to the unique contours of your tumbler.
 
For further steps on how to set up the RA2 Pro in the software, kindly check this step-by-step tutorial.
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