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Danny's mods incorporated!

A project log for Thor

OpenSource 3D printable Robotic Arm

AngelLM 12/19/2016 at 16:055 Comments

Hi!

Time ago, Danny made some modifications to largest pieces, splitting them and making them printable in 180*180mm bed area printers.

He made an awesome work, and I wanted that modifications to be in the main repo, so I added it! Also, I migrated the design to FreeCAD in order to have the source files too ;)

EDIT 21/12/16: I have migrated another 2 modifications to FreeCAD :)

On the left, my remix of Art4Body modification made by Danny. Designed for low height printers, thank you again Danny :)

On the right, the BaseBot modification made by Ctrl-Alt-Dude for 190*190mm print area. This will allow more users to print Thor. Thank you too! ;)

Are you having issues with other pieces?

Season's greetings for all!

Discussions

Olaf Baeyens wrote 12/22/2016 at 21:20 point

Some new idea I have. When you look how it is printed in 2 parts, you could actually make it extendable with 2 or additiponal 2 rings to make the arm longer by choice.

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Olaf Baeyens wrote 12/21/2016 at 20:58 point

For feedback I have a small issue with one of your parts.

The thing is that my 3D printer is in my living space and I don't trust it to print when I am away.  If I print this main part then the print is 19 hours. So I printed it in 3 parts then glued it together.

Back then I did not have the motors yet. But last week I tried to insert the motors as a trial and discovered that one I can't get inside.  I have been wondering how to modify the original design to make assembling more easier and have some cooling fans openings, but I am not a mechanical guy and ran out of inspiration. Creating a 3D model is easy, but creating a 3D model that also mechanically works and is easy to assemble is very hard!

The fact that this is a 19 hour print model prevents me to use trial and error.

I have one of my posts here that shows an image of the motors not fitting (down).

https://hackaday.io/project/16483-building-the-thor-robot/log/50417-the-motors-arrived

If you feel inspired to redesign that part, then it would make me happy.

Something would be nice if we could just insert the motors from a back panel. But I think it wpould lose structural entigrity.

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AngelLM wrote 12/21/2016 at 21:05 point

Yeah, I really understand you hahaha

That piece has its own history... and it ended being a big solid part, hard to print and hard to fit the motors inside... I'll study the way to split that piece! I have some ideas right now :P

I'll keep you updated! Thanks for the feedback :)

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Olaf Baeyens wrote 12/21/2016 at 21:21 point

The biggest time a 3D printer loses is printing the support structures. If you can prevent 90 degree angles to occur and have slopes instead then the 3D printer could gaain much more time.

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Olaf Baeyens wrote 12/21/2016 at 20:32 point

These new additions looks sexy!

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