Cigarette Rolling Box

thingiverse

A precision-crafted rolling device for cigarettes and cigars. Use high-quality synthetic leather for the exterior. (I sourced black microdot leather from Walmart's fabric section. You'll also need a 3/4 inch wide, 1/8 inch thick aluminum bar stock)from any hardware store. A wooden dowel. Some strong adhesive. Finally, six small screws with tapered heads to countersink them for a flush fit). Print two of the sides and ends, one endcap, and bottom plate (no supports; some infill will do). Print settings don't matter much since this design is very forgiving. Glue the sides onto the bottom plate first. The thicker section under the slide cutout should be towards the bottom plate. (Use your ends to ensure correct spacing of the sides but DON'T GLUE THEM yet. Only glue the sides at this time.) Cut your aluminum rod to length (the length of the bottom plate plus half an inch for the endcap) Drill holes in the aluminum rod. Measure half the thickness of the dowel and mark that from the side of one aluminum bar. Also mark half the thickness plus a little (1/8 or less) from the end of the bar. Drill a hole at the intersection of these marks. You want the dowel to sit flush with the bottom of the aluminum bar. Once you have drilled and countersunk both rods, cut your dowel to length (a hair shorter than the width of the bottom plate). Mark and drill the center of your dowel on both ends. Screw the dowel to the aluminum bars with some adhesive on the threads and screw them tight then back off an eighth or a quarter turn). The head of the screw should be flush or below the outer surface of the aluminum rods or they will bind. Once you have both bars attached to the dowel and ensured the dowel can rotate freely (the screws should turn with the dowel) then slide the whole assembly into the sides. If this slides freely, you're ready to glue the ends on. Make sure to keep any adhesive clear of moving parts. Glue the bars into the endcap. Cut your fabric to size (it should be exactly as wide as the box is wide but the length should be about two inches longer than the box). Cut two more aluminum bars as long as the inner part of the box is wide. Drill two equally spaced, countersunk holes in each bar. Place one end of the fabric leather side up in the end of the box farthest from the endcap. Make sure it's flush with the end of the interior of the box and straight. Place one of the drilled aluminum bars over the fabric and screw it down to the bottom plate as straight as possible (seriously, measure this so it's as straight as you can get). Pass the fabric over the wooden dowel and affix the other side the same way. Pull the slide mechanism forward about a quarter inch. Push the slack fabric into the space below the dowel before the first part of the ramp on the bottom plate. This is where tobacco gets loaded. The more slack in the fabric, the thicker the cigar or cigarette. Place your paper on the raised surface of the bottom plate with gum side facing up and towards the endcap. Wet the gum and pull the lever straight back. Check your cigar/cigarette; if it's too thick, pull unscrew one of the bars and shorten the fabric a bit until you reach your desired size (if someone wants to make a derivative that spools excess fabric onto a ratcheting dowel then you can have adjustable-sized cigars). The pull of the cigarette is determined by how much tobacco you pack into the cigar or cigarette. If you want to roll with filters, just add the filter on either end of the pocket where you place the tobacco (need to have the rolling machine sized to fit your filters though). That's all folks. For those who have a CNC machine, I've included Fusion 360 files so you can generate your own toolpaths. My CNC is pretty beefy, so you probably want to slow things down for hobby-level CNC machines.