Crosshair laser mount for Stepcraft CNC
Description
This is a crosshair laser mount for the standard Stepcraft CNC tool mount, based on an idea by mikath in the Stepcraft forum: https://www.stepcraft-systems.com/en/forum/software2/3245-cross-laser-and-uccnc I liked the idea of using a local installation with batteries, but wanted to make an improved holder. I came up with a click-on design that will attach to the side of the stock milling head and hook into the vacuum head screw mount hole, but I additionally recommend putting a small strip of double adhesive tape on the inside that follows the round tool holder to keep it tight in place without further movement. Since I also wanted a "local unit" design I used the original idea of a battery case with switch and wired the laser directly to the battery case to have short cabling and to avoid routing long cables along the axis. Because there is few mount options around the milling head for the case without limiting axis movement, I used a velcro strip to fix the battery case to the vac hose. When I am changing to laser head, I just deattach the velcro, change the head and reattach the battery to the laser exhaust tube. So the crosshair laser can always be left in place and there should be less need for recalibrating the XY offsets, but still could be removed without tools if needed. I have attached the sample M202 macro from mikath for UCCNC that can be used for resetting XY to zero and placing the mill at XY zero coordinates afterwards. To use it, manually place the crosshair at your destination point and execute M202 (Park 3). The macro contains the offset values that work for me using this holder and should be pretty close to yours when using it. External links to the products I have used as a reference (I don't get paid for this, you may use other products but may have to adapt the design): Crosshair laser, 12mm diameter (2 pcs): https://www.amazon.de/gp/product/B07TFCQYDH Battery case with switch: https://www.amazon.de/gp/product/B000PEJQMY
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