Customisable alignment tool for MPCNC build

thingiverse

This is some tool I made to help me adjust the height and positions of the corners in my MPCNC build. You will need four of those tools, one for each corner. BOM: - Four parts of the tool, times four for each corner - M8 screw with hex head and of required length according to height of your build - Two M8 nuts - One M8 washer (change SCAD file if you prefer different screw types) To assemble the tool: - Print all four parts of the tool - Push the screw down into the top_foot part, so the screw head sits completely in the recess - Push fit the top_head into the top_foot part, should fit nicely while holding well - Screw nut and washer onto screw (those are for securing the knob into position) - Put knob part onto screw so that its opening faces away of the head - Screw remaining nut onto screw and use the securing nut to pull the outer nut firmly into the recess within the knob part - Put all this assembly onto the foot - Adjust height by releasing the securing nut, and by rotating knob to move head up or down To adjust heights: - Look for the corner that is the highest up, - Adjust the first tool to fit snug under the pipe at that corner, - Adjust and secure the rest of the tools to the same height, - Put them under the other pipes at the corners, - And adjust and secure the corner heights accordingly. To adjust for squareness: - Using the holes in the tools, fix some fishing line connecting pairs of diagonally positioned tools - Make sure that the fishing line joins at the edge of the tool touching the corner - Measure distances from center where the two diagonal fishing lines cross to the tool edges - Adjust positions of feet so that all measured distances are equal