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Updated Fusion360 discord server

by Bern_Kurman

Updated Fusion360 Discord
The Updated Discord is keeping all the chatrooms, moderators, and roles, but features a better role assignment system, as well as an anti-raid system.
The Fusion360 discord is a place where you can get help with all the environments in Fusion (i.e. Modeling, CAM, Patch, Animation, Simulation, etc.), as well as get ideas on what to model when you hit that creativity block and share designs. If this is something you would be interested in, follow the link down below. Hope to see you there!

Link:
https://discord.gg/a8ranMp

engineering Fusion360 fusion_360 openscad
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Printed gears, nozzle size and module?

by Aethelstan

Hi guys, I am looking into creating some 3D printed planetary gearboxes to fit into a nema 17. I currently have a 0.4 nozzle on my hot end, and can almost get my gears to turn freely with minimal backlash by using a module of 0.5mm, but they are not quite there yet. Is there a rule of thumb that will allow me to select a nozzle and module that will work together well? I appreciate that there will always be some post print processing required, but that can be easy to over do. Any suggestions?

Cheers

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Reuse Roomba wheels for rc/robotics projects

by dtr182

I did a quick search but have not seen it done. Is it too hard or do Roomba wheels have some limitations?

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How to make a die cut machine

by reprobubbles

I run a small vacuum forming co. I do a lot of reproduction inserts/blisters for vintage toys like Transforms, G.I. Joe and Star Wars. Each plastic insert I sell, comes with a card board backer. Each blister requires a different size, shape and creased for the card board backer. I know I could buy die for each one and use a die cut machine I am cheap and own numerous 3d printers and was hoping to be able to create my own dies.

Can anyone help me with this project? I’ve added some links so you can see what the inserts, card board backer and my idea are. Thanks for any suggestions.

Picture of Insert sitting on the Cardboard Backer: https://drive.google.com/file/d/1ghAbUPZuB7-r4yYrVerjZlrPeqAjK3k0/view?usp=sharing

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Need help fixing / redesigning my sun-tracker prototype

by xlabs

I'm trying to do a heliostat / solar sun tracker, but faced some difficulties as i have basic knowledge in 3d design and mechanical engineering.
I printed the prototype (PLA) and did some tests with motors - but it failed my tests.

Issues in current design:

  1. On hold position all the load is falling on the stepper motors. Though stepper motors are trying to hold position, The axis would move easily- even without the load (solar panel / mirror) and forces (wind, gravity).

  2. Stepper motors work too hard to move the big gears and structure. no way motors move the 5kg solar panel or mirror.

(EDIT) 3. Motors used are the NEMA 17, a gearbox might be needed as @RotaryDesign mentioned - to be able to lift the weight (mirror/solar panel) and move/hold in wind.

To solve the issue, the model needs to be redesigned in a way that the weight and pressure are not accumulating on the stepper motors.
One way i thought about it is using gearbox / worm gears, in a way that stepper motors wont interrupt and limit the movement - ultimately if motors stay inside the structure and covered.

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