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Old 06-01-2021, 10:14 AM
BeardFace (Nial)
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BeardFace is offline
 
Join Date: Mar 2020
Location: Melbourne, Australia
Posts: 30
Quote:
Originally Posted by appiice View Post
Hello Nial

You are mixing the Levesdome hardware with a stepper motor, you need a DC motor - actually it is a servo motor, any DC motor can be made into a servo motor with an encoder added to it, I had a stepper setup like you describe and after 2 years I gave up on it and went the Levesdome route, was simple and it works!

The problem with steppers is that despite the communities best intents, every dome is different so the hardware / software is an issue, the Nexdome route was stuffed up by Nexdome as the paid a bloke in the UK to re-write the code, in doing so they removed the ability to change the step/pulley size/belt pitch and length, so it works really well on a Nexdome not so much on any other.

Here is a link to my build, I did a 3m ally dome, the photos show you my answers to your questions, the only change I would do now is I would make the dome out of ally but in a flat trapazoidal ( sp?? ) shape, no compound curves but still no leaks. The good thing with ally is if you have wood working tools you can do it.
https://1drv.ms/u/s!AhXA8zZYfT5YjT_5...1hOMp?e=I7qaas

Best regards

Ed
Hey Ed,

Thanks for the advice, and the link, it's a huge help. After some research I'm actually thinking of using an ExploraDome track and gear set https://optcorp.com/products/explora...rotation-kit-1 and then using a 12vdc motor and encoder. I know they sell an encoder as part of their more complete packs but I'm wondering if I can find an equivalent as they don't seem to sell it separately.
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