Magnetic Tray for Nato Strap

prusaprinters

<h3>Introduction</h3><p>This is a magnetic small parts tray, wrist mounted via 22mm nato watch strap. It holds small magnetic items like screws, fasteners, and springs during assembly/disassembly. If you are doing repairs on electronic devices or assembling small machines like 3D printers, this could come in handy.</p><p>I used this one, but just about any 22mm nato strap should fit:</p><p><a href="https://www.amazon.com/INFANTRY-Canvas-Fabric-Stainless-Buckle/dp/B00B23NIOY/ref=sr_1_6?crid=D5G3NZXZYIQX&amp;dchild=1&amp;keywords=nato+strap+22mm&amp;qid=1634573315&amp;sprefix=nato+stra%2Caps%2C260&amp;sr=8-6">https://www.amazon.com/INFANTRY-Canvas-Fabric-Stainless-Buckle/dp/B00B23NIOY/ref=sr_1_6?crid=D5G3NZXZYIQX&amp;dchild=1&amp;keywords=nato+strap+22mm&amp;qid=1634573315&amp;sprefix=nato+stra%2Caps%2C260&amp;sr=8-6</a> </p><h3>Materials</h3><ul><li>printed parts</li><li>2x neodymium magnet 10x30x3mm</li><li>nato strap 22mm or narrower</li><li>optional: superglue</li></ul><h3>Print Instructions</h3><p>The provided <strong>.3mf</strong> and <strong>.gcode</strong> files are optimized to be printed from <strong>PETG</strong> on a Prusa MINI+ The <strong>support settings</strong> were chosen to make the supports<strong> peel off easily</strong> without damaging the underside of the print. If your e-steps are calibrated correctly, this should also work on your machine. If it doesn't, you might have to tweak the settings for <strong>bridge flow ratio </strong>(~0.7) and <strong>bridges fan speed </strong>(~85%) a bit. The settings mentioned here worked perfectly for me, but your mileage may vary. </p><h4>Here are some of the settings I used in the provided files:</h4><p><strong>Layer height:</strong> 0.2mm</p><p><strong>Perimeters: </strong>2</p><p><strong>Infill: 100%</strong> for strength, less might be acceptable, depending on use case</p><p><strong>Bridge flow ratio:</strong> 0.7</p><p><strong>Bridges fan speed:</strong> 85%</p><p><strong>Supports: </strong>support on build plate only</p><p><strong>contact z distance:</strong> 0.1mm</p><p><strong>interface layers:</strong> 4</p><p><strong>interface loops:</strong> yes</p><p> </p><h3>Assembly Instructions</h3><p><strong>Prepare materials:</strong></p><figure class="image"><img src="https://media.prusaprinters.org/media/prints/81332/rich_content/0ce2d2ab-e9c5-4d8b-8e22-04966c681c01/img_20211018_082209.jpg#%7B%22uuid%22%3A%228b79dac2-586c-415f-86db-8adc4e00dd23%22%2C%22w%22%3A3840%2C%22h%22%3A2160%7D"/></figure><p><strong>Align magnets:</strong></p><figure class="image"><img src="https://media.prusaprinters.org/media/prints/81332/rich_content/971cd3ad-0c0b-4614-8c61-c0914b8862ba/img_20211018_082303.jpg#%7B%22uuid%22%3A%221599d2da-28eb-4567-a298-20f0ab0e6955%22%2C%22w%22%3A3840%2C%22h%22%3A2160%7D"/></figure><p><strong>Feed strap</strong> through one lug of the main body and cover, install magnets. The magnets should clamp themselves in place on the middle wall.</p><figure class="image"><img src="https://media.prusaprinters.org/media/prints/81332/rich_content/52175a57-a8b1-43ef-b427-577ce6206324/img_20211018_082345.jpg#%7B%22uuid%22%3A%226f2e5d2a-11d3-4b13-933b-c4e9cfbd8e77%22%2C%22w%22%3A3840%2C%22h%22%3A2160%7D"/></figure><p><strong>Close cover</strong>, optionally secure cover with superglue. I found the strap itself secures the cover well enough, so I didn't use glue.</p><figure class="image"><img src="https://media.prusaprinters.org/media/prints/81332/rich_content/da32be68-d98e-4fbb-9387-ce61b5e09451/img_20211018_082352.jpg#%7B%22uuid%22%3A%225c2a0c78-3d98-4e80-b3bf-d7a12abbbbfc%22%2C%22w%22%3A3840%2C%22h%22%3A2160%7D"/></figure><p><strong>Feed strap</strong> through second lug and fold down short part of the strap</p><figure class="image"><img src="https://media.prusaprinters.org/media/prints/81332/rich_content/aae49391-49b3-4706-9927-0dc1c6b7264f/img_20211018_082408.jpg#%7B%22uuid%22%3A%2203c11803-0c74-434a-9af2-7b3bf6a92373%22%2C%22w%22%3A3840%2C%22h%22%3A2160%7D"/></figure><p><strong>Feed</strong> the long part of the strap through the metal ring at the end of the short strap.</p><figure class="image"><img src="https://media.prusaprinters.org/media/prints/81332/rich_content/1a06b390-8569-4b11-846c-ba7b5f369290/img_20211018_082436.jpg#%7B%22uuid%22%3A%220d4e9efd-d78c-4541-8700-6f7deb624a17%22%2C%22w%22%3A3840%2C%22h%22%3A2160%7D"/></figure><p><strong>Done! </strong>You can now put it on your wrist like a normal wrist watch! Enjoy!</p><figure class="image"><img src="https://media.prusaprinters.org/media/prints/81332/rich_content/31088e54-bcaa-48d7-810d-3c4fdf2093ff/img_20211018_082448.jpg#%7B%22uuid%22%3A%22f2a0b8e7-6dc0-4eae-8856-bb92a3ea58a8%22%2C%22w%22%3A3840%2C%22h%22%3A2160%7D"/></figure><figure class="image"><img src="https://media.prusaprinters.org/media/prints/81332/rich_content/b0fc25ae-de65-4b0c-b0dc-3acef02a1470/img_20211018_082626.jpg#%7B%22uuid%22%3A%22c7aaf344-ca27-4ad8-9562-f09fe61eacc6%22%2C%22w%22%3A3840%2C%22h%22%3A2160%7D"/></figure>