![]() ![]() I found that having the smooth spacing/set screw holder on the pulley opposite the motor allowed easier alignment with the centre of the V-Slot. Getting the NEMA 17 on there was super easy just slot the shaft into the side of the Actuator End Mount while holding the pulley inside the mount. Alternatively, just use a regular end mount which allows access!įeeding the GT2 belt through the centre of the V-Slot was much easier than I'd envisaged, it's far lower friction on the anodisation than you'd think, but still plenty grippy in general. It's pretty difficult to get the idler all spaced out and tightened up in there, but some bent nose pliers and patience will go a long way. Retrofitting the slider simply consists of adding an OpenBuilds NEMA 17 stepper motor and a 20x2mm pulley to one end, putting a smooth idler pulley on the other (not so easy within the confines of an actuator end mount, there are much more practical solutions, but I was going for aesthetics as well), and stringing a GT2 belt between them! There are two parts to the automation process retrofitting the slider & assembling the hardware, and actual programming. One specifically designed only for time lapse and not video could use a screw drive rather than a belt drive, and save motor power. If for some reason you need a full explanation with all the whys and wherefores, I did an article/video on it on Tuts+.Ī future Mk.II version would most likely be more of a box shape, with two parallel 2020 V-Slot rails a few inches apart with the gantry wheels running on the inside, and perpendicular end brackets holding the motor and stuff. The dolly is a regular V-Slot gantry plate with 6 Delrin Dual V-wheels, eccentric-spacer'd on one side. I'm not going to go into the intricate details because of its simplicity, but this is it:ġ500mm of black anodised 2040 V-Slot with actuator end mounts on each end. The actual slider is a very simple design for this Mk. ![]()
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