Taig CNC Ballscrew Mill

grabcad

CAD model of Taig Ballscrew CNC Mill. Natively drawn in Fusion 360. I own this mill, and took it completely apart to measure each component in order to model it accurately. Mill was purchased new in about 2019.Fusion 360 native files and STEP files are attached.A bottom-up approach was used. Every part was drawn individually, and then assembled into multiple sub-assemblies. The sub-assemblies were then assembled into a top-level assembly. I modeled it this way (as opposed to top-down), so that you can remove or modify components at will without affecting any other component. The Taig mill is a great platform, and a lot of its users modify or create new parts for it. This bottom-up modelling approach is more conducive to that.Part accuracy is about +/- 0.005" for most of the parts. I used calipers, rulers, gauge pins, 123 blocks, etc, to measure the components.I modeled the parts at the measured size, rather than nominal size. Some parts came in at for example 0.515". They are probably supposed to be nominal 0.500". I decided to go with the measured number.If you open the Fusion model, all the axes work the same as the real mill. I show this in the video linked below. The X, Y, Z, all move up until they hit their hard stops. The motor pivots to adjust the belt tension. The headstock slides up and down on its dovetail. See the video for more information.I'd probably suggest you make a new folder in your fusion data panel and bring the fusion version of the mill inside of it. It will populate your folder with each individual part and sub-assy, for a total of approximately 100 files.There is one issue I'm currently aware of. Sometimes when you open the model or regenerate it, the X stepper motor and Z gib will be in the wrong place. If this happens, simply slide the table and the Z in any direction slightly, and the components will immediately snap to their proper location. You can then revert position, and they will keep their proper position.If you find any other issues, please let me know and I will do my best to correct them.Rev Block:Rev 1 (version 58): Nov 17, 2020: Initial Release.Rev 2 (version 96): Mar 6, 2021: 1) Fixed travel range of Y saddle, it went too far towards column by about .350". 2) Adjusted headstock to match drawing from Taig. Dovetail pin to pin measurement changed by .002". Added small flat in place of sharp edge of dovetail per Taig drawing with 2.250" spacing. 3) Fixed ball threads on ball screws. They had overlapping geometry that was causing STEP import errors on some CAD systems. 4) Changed the appearance to a lighter color on all parts that had a black appearance applied. This was to increase the visibility of the part details.Rev 3 (Version 110): Apr 10, 2021. No geometry changes. Fixed corrupt files and re-uploaded to GrabCAD.