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These strobe disks are for checking/adjusting the speed on your turntable, assuming it doesn't already have this feature. When using the applicable disk, viewed under fluorescent or other 50 or 60hz light (neon or similar) with your turntable rotating at 33-1/3 or 45 rpm, the respective dark bars on the disk will appear to stand still,

As mentioned, there are two versions included -- one for 50 and one for 60hz. Each disk has markings on it to avoid confusion. BTW the 50hz version includes a best-approximation of 45rpm, it's impossible to get it perfect with an integral number of slits.

Print Settings

Printer:

Home-brew X-Drive (like ultimaker)

Rafts: \n

Supports:

Resolution: \n

.2 layer or better

Infill:

doesn't matter, I used 30%

Notes:

When printing this, you can achieve the light-on-dark appearance by printing the bottom layer in a dark plastic, with a light plastic on top. I did this by creating two processes in Simplify3d, the dark layer stops at a height of 2.8mm, the light layer starts at 2.8mm.

\nRun the first process, let it finish, replace the filament, run the second process.\n

It's easier than it sounds.

I have included both solidworks files if you want to change this.

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