The Mini DoomScroller, a portable smartphone tripod (parametric)

Description

Introduction The DoomScroller was made for surviving lockdowns during the COVID-19 pandemic. The HopeScroller travels the world with you. Just in time for iOS 17’s StandBy feature. No more metal fasteners! Print everything you need before your next big trip. Instructions Mounting Style Clamp Most users will need all files except magface.stl. Note that the clamp frame is designed to be weak on one side to prevent breaking a smartphone when tightened too much. Use HopeScroller Cut Tool.3mf to estimate the length needed to cut Clamp frame.stl. See Cut section below. MagSafe If you want to use the MagSafe charger, then print magface.stl and remove the following: Clamp frame.stl Clamp movable jaw.stl clamp-nut.stl Assembly See photo gallery to follow along with assembly instructions. Insert torso.stl and neck.stl so that hinges are flush on both sides. Insert hip-bolt.stl into the unthreaded side of the hinge, then screw into the M12 thread of neck.stl to tighten hinge. Place ball.stl into the spherical section in neck.stl. Place ball-joint-nut.stl over ball.stl, and screw onto the M22 thread of neck.stl to tighten. Screw the selected mount into the M12 thread of ball.stl. If using magface.stl, skip to step 9. Insert Clamp movable jaw.stl over Clamp frame.stl. Screw clamp-nut.stl onto the M15 thread of Clamp frame.stl. Place left-leg-threaded.stl on the underside of the joint on torso.stl. It will sit between torso.stl and neck.stl when folded. Place right-leg-unthreaded.stl on the opposite side of the torso joint. (Optional) Use leg-bolt-washer.stl on top of right-leg-unthreaded.stl. This adds length for leg-bolt.stl, and adds another option for mixing colours. Insert leg-bolt.stl through right-leg-unthreaded and screw into M12 thread of left-leg-threaded.stl. It is finished! Print Recommendations Colours You can choose whichever colour scheme you like! I’ve printed HopeScrollers in monochrome, two-tone, and rainbow. Found the two-tone to be received best by beta testers, so I’ve organized the files into folders “Main Colour” and “Accent Colour.” Materials PLA works great! PETG is a little too flexible and bouncy. Supports I set the following PrusaSlicer settings for easier removal of supports (see screenshot in gallery): Snug for “Style” is better than Organic for this model. 90º for “Pattern angle” exposes the snug supports' folds. 0.3 mm for both “Top contact Z distance” and “Bottom contact Z distance. 2 layers for both “Top interface layers” and “Bottom interface layers.” Customizing Clamp Parametric Using the DoomScroller Parametric Clamp.f3d, you can customize the clamp based on the size of your device. Fusion360 is free for personal use. How to change parameters (see screenshots): Once installed, open the DoomScroller Parametric Clamp.f3d file. Navigate to Solid > Modify > Change Parameters. Change the parameter for deviceWidth. Change the parameter for deviceDepth. (optional) Change the parameter for deviceHeight. Merely for cosmetic purposes. In the Browser menu, expand the Bodies item. Right-click the Clamp frame item. Click the Save as Mesh item. In the Save as Mesh menu, click OK. Save the file to your computer. Right-click the Clamp frame item. Repeat steps 8 to 10. Print! Preferred method because it's more customizable. The mounting hole for the ball joint will be centred compared to the Cut method below. Cut Clamp frame.stl was made quite wide to accommodate multiple sizes of smartphones and cases. It can be cut down to reduce bulk, in keeping with the portability of the model. As a rough rule, Clamp frame.stl should be at least 20 mm wider than your phone. For maximum customizability, use the slicer and HopeScroller Cut Tool.3mf to cut Clamp frame.stl down to your desired smartphone width. See photo gallery for instructions with PrusaSlicer. Open HopeScroller Cut Tool.3mf. PrusaSlicer will show a dialog message. Choose “Open as project.” Change the size of the Shape-Box to match your phone’s dimensions. Click the lock to disable scaling. Move both the Clamp movable jaw.stl and clamp-nut.stl files along the X-axis to match the width of the Shape-Box phone model. Use the “Drop to Bed” feature and click on the bottom of the Clamp frame.stl file, or set it to a Z-height of 14 mm. Use the “Cut” tool, rotate 90º about the Y-axis, and drag the cutting distance. To Do Multiple clamp sizes with centered mounting hole. Fusion 360 parametric model. (done 2023-11-10) Loosen keying for clamp frame threaded region and movable jaw. Increase thread length for iPhone mini-class smartphone width. Update filenames. Update 2023-10-31: Added plate files for full project and two-tone, divided between main and accent colours. Includes supports and other slicer settings. Consider importing as models only since the speeds are lower. My MK3S has a problem with shifting layers caused by high speeds/accelerations/jerk, etc. 2023-11-10: Uploading a parametric Fusion360 model, DoomScroller Parametric Clamp.f3d, for customizing the clamp's frame and movable jaw for your smartphone. Should be easier to customize a clamp for your phone's unique dimensions, including cases/Pop Sockets/magnetic plates/camera bumps. I'll still produce a few combos, and this file will make it easier. Also changing the name because HopeScroller doesn't really roll off the tongue the same way as DoomScroller.

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