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Self-adjusting weight dumbbell
IP Report
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Print Profile(1)
0.2mm layer, 6 walls, 25% infill
Designer
19.7 h
2 plates
Open in Bambu Studio
Boost
2
2
0
1
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Released
Description
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- This is a dumbbell whose weight can be adjusted independently according to your needs, and you can own it with only 370g!
- Say goodbye to a pile of dumbbells, freely adjustable weight, saving money and fun!!
- The external dimensions of the dumbbell (length, width, height) are 300*90-80mm
- The dumbbell head end caps need to be glued. For this, I designed bosses and added 30° angled braces downward from the boss edges, allowing the bosses to be printed without supports.
- The central support tube of the dumbbell head is designed with four grooves to increase strength, restrict free rotation, and ensure the dumbbell head is stably fixed on the connecting rod.
- The middle handle of the dumbbell is designed with internal threads, allowing the two dumbbell heads to connect via threads. By calculating the thread pitch, I made sure that the two dumbbell heads are exactly on the same plane after the threads are tightened.
- The dumbbell handle is designed as an arc-shaped grip, with a middle diameter of 34.4mm, ends at 25mm, and a length of 100mm, adjusted for the most comfortable hand-holding size.
- Various granular materials can be chosen for the inside of the dumbbell, such as rice, soybeans, soil, sand. Of course, if you are strong enough, you can fill it with iron sand!!!
- I randomly collected some soil outdoors. Based on the density of this soil, the internal volume of the dumbbell head was designed so that when filled with soil, the total weight is exactly about 1kg.
- Through simulation software, I designed the end cap thickness to be 3mm, wall thickness 2mm, central support wall thickness 2mm, and 1-10kg load simulation shows it can fully bear the load.
License
This user content is licensed under a Standard Digital File License.
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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