AluTec box-roller

thingiverse

I have an AluTec box for storage and that thing became a little heavy to move so I decided to get some rollers underneath... but the original ones where too big and a little too costy for my needs. Had some small rolls from an old desk lying around. There´s a 7,5mm pin to fit in somewhere. So I came up with this: The piece fits neatly under the profile of the box and is tightened with a M4x35mm bolt into the corner, the M4 nut helps to get a good hold. To prevent bending, there is another M4x16mm screw needed and a small washer/nut on the far end of the corner. The hole is quite small so you need a little screwdriver to block the nut and thighten the screw. As I wanted a washer, I decided not to fit the M4 nut directely. To help drilling the hole in the corner I made a guide for the drill - it is asymetric and the hole is ment to be more to the outer rim of the box - just have a dry fit first. The 8mm washers do prevent friction of the roller and the printed part, just in case :) I used a vice to press in the 7,5mm Pin and needed to press back about 3mm from the bottom so that the roll swings nicely onto the washer. If the pin is too loose it will fall out - just use some paper for nice fit. Needed parts: 1x drill-guide 4x corners 4x roller with 7,5mm pin 4x M4x35mm (flat head) 4x M4x16mm (flat head) 8x M4 nut 4x 4.2x10mm washer 4x 8.2x16mm washer 4mm drill :-)