Mitten & Boot Dryer for Floor Vent - NO SUPPORTS

prusaprinters

<p>This is an over engineering mitten and boot dryer for use over a forced air furnace vent measuring 14 inches by 6 inches (350mm X 150mm). &nbsp;Each tube can be turned on or off and has a unique air flow path forcing air out into the mitten but allowing a path for wet return air to exit.</p><p>If there is a vent size you think I should accommodate let me know in the comments. I can try to make a base to fit or feel free to use the included Thread Subtraction Boolean models to create your own.</p><p>Twist clockwise to turn on and counter clockwise to turn off, this allows only some of the tubes to be covered at one time. &nbsp;A visual indicator window users to check the status. &nbsp;An optional MMU version of the support tube allows the addition of color to the visual indicator.</p><p>All pieces print <strong>support free</strong>. &nbsp;I recommend PETG or some other higher temp plastic as PLA may warp. &nbsp;Printing at 0.3mm layer height with a 0.6mm nozzle will also save a lot of print time<strong>, make sure to set your print width to 0.5mm</strong>.</p><p>Four small M3 self tapping wood screws or similar are need to assembly the two halves of the base. &nbsp;The support tubes screw into the base and the dryer tubes click into the support tubes.</p><p>This design was inspired by the <a href="https://www.thingiverse.com/thing:4032813">Mitten Monster (Mitten Dryer)</a><strong> </strong>by <a href="https://www.thingiverse.com/miragec/designs">miragec</a>.</p><h5>Updates:&nbsp;</h5><p>2022Jan17 - Added Larger base for 8in x 14in registers. &nbsp;Added Base Thread Negatives (STL and STEP) to Boolean subtract from a vent cover base to get the correct threading if you want to make your own bases. I also added some info on the thread profile I used below.</p><p>2021Dec30 - Add a version of the Dryer tube with a thicker tip for higher traffic areas. &nbsp;I noticed one of mine right next to the cold door broke due to contact with a stray boot.</p><h5>Thread Pitch:</h5><p>The thread pitch of the tube supports and base is not a standard thread. It is based loosely off of standard metric threads but I reduced the pitch and changed the thread angle from 60deg to 90deg for easier printing. The internal thread profile dimensions for the swept helical cut I made in the base are given below in millimeters. I used a 58.2mm diameter hole and a 4mm pitch. The hole depth was 10mm with a 2.4mm internal chamfer to act as a stop, see second image below.</p><p><img class="image_resized" style="width:92.72%;" src="https://media.prusaprinters.org/media/prints/105764/rich_content/f15ee6a7-b17f-4a8b-89c8-f2653f5f5d01/robagon3d_dryervent_threaddims.png#%7B%22uuid%22%3A%2270168a42-74d1-4067-8cf3-bfe01533a0d7%22%2C%22w%22%3A1059%2C%22h%22%3A669%7D"></p><p>Image 1: Base thread profile dimension in mm</p><figure class="image image-style-align-center image_resized" style="width:34.41%;"><img src="https://media.prusaprinters.org/media/prints/105764/rich_content/9f8f5371-3e3c-40d5-b040-e17f62dcbef1/robagon3d_dryervent_threaddims2.png#%7B%22uuid%22%3A%221ae82e3c-90ea-490e-ae52-e226ed6f51bf%22%2C%22w%22%3A311%2C%22h%22%3A664%7D"></figure><p>Image 2: Hole Depth and Internal Chamfer dimensions in millimeters</p><h5>Encouragement:</h5><p>If you like what I'm doing consider buying me a coffee:</p><p><img src="https://cdn.buymeacoffee.com/buttons/bmc-new-btn-logo.svg" alt="Buy me a coffee"><a href="https://www.buymeacoffee.com/sj5pEfMZq">Buy me a coffee</a></p>