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Discussion Starter · #1 ·
Hello, all. I know there are a hundred sources to get a shift knob that looks more or less like what I have made here, but I just enjoy 3D printing things.

While I did not design this one from scratch, I easily could have. But since someone else had already done it, I just edited his older style design to account for the Reverse Lockout, and it worked perfectly. I am still waiting on the mounting hardware, but I did fit it on the shifter, and it's spot on.

I also designed one for a friend with the Superman logo, same way- the logo is a separate piece that can be printed in a different color & then inserted into the knob. Within reason, this same technique could be applied to almost any simple logo or graphic.

The model is on Thingiverse if anyone wants to tinker with it: WRX Shift Knob Remixed for Reverse Lockout Shifters by Dingoboy71 - Thingiverse

IMG_20161016_025135245_HDR.jpg IMG_20161016_035527930_HDR.jpg IMG_20161016_035621593.jpg
 

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That's not shabby. I really like the design. Have you done any finishing work on it yet?

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Discussion Starter · #3 ·
Removed the raft & support materials, and sanded the 2 flat mating surfaces to ensure a good fit.

Since I printed in PLA, I cannot vapor smooth, etc. Only a few months into the 3D printing hobby, and aside from the Polymaker Polysmooth material & their proprietary smoothing system, I am unaware of any reliable smoothing method for PLA.

I might try printing in ABS down the line, but I'm not sure the parts would fit together after accounting for ABS' penchant for shrinkage when cooling.
 

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You can sand and polish to a nice finish.

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With a fine enough sandpaper you can get a good finish in anything.

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