OpenBuilds ACRO Z Axis
Description
This is a Z-Axis for OpenBuilds ACRO system. I designed it with a few key requirements in mind: * has to be sturdy enough to able to carry a small drill. I drill small holes (2mm in diameter, 15 mm deep, plywood / MDF) with it. This was very important to me. This is why I tried to get the drill to be as close to the 20x40 bar as possible. * simple tool changing. For example, I want to quickly go from using a drill to using a laser. * should not deviate from original ACRO design too much * most parts should be be 3D-printable or easily sourceable. I am very happy with how it turned out and I hope you like it too. ### Hardware BOM I bought all of the hardware, except for M3 screws, M4 screws and coupler on openbuildsstore.com. It was about $80 + shipping. Main Z-Axis Body: * 2 x V-Slot® 20x20 Linear Rail, Length: 124mm * 1 x 8mm Metric Acme Lead Screw, Length: around 140mm, depends on the motor * 3 x Screws M3, Length: 35 - 40 mm. This one also depends on the motor * 1 x 5mm to 8mm Flexible Coupling * 4 x Aluminum Spacers, Size: 3mm * 2 x Precision Shim - 10x5x1mm * 8 x Low Profile Screws M5, Length: 35mm * 4 x Low Profile Screws M5, Length: 10mm * 12 x Tee Nuts - M5 * 4 x Self Tapping Screw Gantry: * 1 x Nut Block for 8mm Metric Acme Lead Screw * 2 x Eccentric Spacer, Length: 6mm * 2 x Aluminum Spacers, Size: 6mm * 4 x Xtreme Mini V Wheel Kit * 4 x Low Profile Screws M5, Length: 27mm * 2 x Low Profile Screws M5, Length: 25mm * 4 x Screws M4, Length: 12mm
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