Quick XY Scaling Test
Description
A Quick Test For Testing The Xy Scale Of Your Printer. The Model Prints In Under 10 Minutes And Features A 20X20X20 Frame Which You Can Measure To Verify And Fine Tune The Scale Of The Models Both Inside And Out. Here Are Some Useful Things To Know: * The Model Is 20X20X20 Mm In Size On The Outside, 15.2X15.2X15.2 Mm On The Inside And Every Frame Is 2.4 Mm In Width. Use These Measurements To Verify Your Printer'S Precision. Please Take A Look At The Third Image For Measurements. * There Is A Little Dent On The Bottom Of The Model In One Corner. The Dent Lets You Easily Pry The Model Off The Bed, But Also Tells You The Orientation. It Is Located Pointing Towards Negative X And Y. Please Refer To The Third Image On This Upload For A Better Visualisation. * For Fastest Printing, Print This With Walls Being 1.2 Mm In Width Or More. This Will Ensure That The Printer Prints Out The Model Using Straight Lines Instead Of Infill. * The Model Uses Curved Corners To Further Speed Up Printing, But Also To Minimize The Possibility Of Overshooting Sharp Corners Interfering With The Measurement. I Have Also Included The Blender File In Case You Want To Edit It Further. **How To Calibrate:** You Will First Need To Know Your Current Motor Steps Per Mm. You Can Find This Value In Your Firmware Or In Your Printer'S Settings Somewhere. Let'S Call This Value `Old Steps`. Once You Have This, Print This Model Out. To Calibrate One Of The Axes, For Example The X Axis Here, You Will Need To Measure The Following Two Values: * The X Width Of The Whole Model. This Value Will Be Around 20 Mm. Let'S Call This Value `Measured Width`. * The X Width Of One Of The Frames. This Value Should Be Around 2.4 Mm, But Expect A Larger Value Due To The Squished In Layers. Let'S Call This Value `Measured Frame`. Once You Have These Values, Enter Them Into The Following Formula (Don'T Change The Value `17.6`, It Is A Constant): `New Steps = Old Steps * (17.6 / (Measured Width - Measured Frame))` Now You Can Use The `New Steps` Value For Your Calibrated Motor Steps! Use This Formula For Calculating Both X And Y Separately. Calculating The Steps Like This Should Give You The Correct Inner And Outer Diameters On All Of Your Models! Keep In Mind That The Outer And Inner Diameters Will Always Be A Bit Wider And A Bit Thinner Respectively Because Of The Layer Squish. This Is Normal And Can Be Minimized By A Smaller Nozzle.
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