An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

For discussion of hand designs.
nathanstenzel
Posts: 12
Joined: Sat Feb 21, 2015 3:50 am

An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

Postby nathanstenzel » Sat Feb 21, 2015 3:55 am

https://github.com/e-nable/StenzelBeast

I have gotten more progress on my OpenSCAD version of the cyborg beast palm. I can now add and remove fingers. This may result in some rough edges at the moment though. Any one that wants to take a look, feel free.


User avatar
laird
Posts: 53
Joined: Thu Feb 12, 2015 4:27 pm
Location: Fort Lauderdale
Contact:

Re: An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

Postby laird » Fri Feb 27, 2015 4:20 am

This is really good. I"ve been crushed with work, but I'll try printing these to see how they look, perhaps Sunday.

Unless someone else gets to it first, of course, I wouldn't want to delay things! :-)
- Laird Popkin

nathanstenzel
Posts: 12
Joined: Sat Feb 21, 2015 3:50 am

Re: An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

Postby nathanstenzel » Sat Mar 07, 2015 1:07 am

Well, I found out that the best way to draw a line in 3D is to hull 2 spheres so that it fills in the space inbetween. Over the next week, I may be transitioning the code to have the grooves made with 3D lines subtracted from the material and to have the whole thing parametric at last.

nathanstenzel
Posts: 12
Joined: Sat Feb 21, 2015 3:50 am

Re: An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

Postby nathanstenzel » Wed Mar 11, 2015 5:18 am

I have started coding for x,y,z scaling. Most of it is out of the way, but I will need to redo the wire paths.

User avatar
laird
Posts: 53
Joined: Thu Feb 12, 2015 4:27 pm
Location: Fort Lauderdale
Contact:

Re: An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

Postby laird » Fri Mar 13, 2015 1:06 pm

That hull trick is clever. I've usually seen it done by drawing a cylinder between the points, which requires using trig to compute angles. With hull, you just use the two points! Easy!
- Laird Popkin

nathanstenzel
Posts: 12
Joined: Sat Feb 21, 2015 3:50 am

Re: An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

Postby nathanstenzel » Sat Mar 14, 2015 2:56 pm

The math in the trig did not come out right. It was a few millimeters off in the Z for the end for some weird reason. That is why I decided to just hull 2 points.

nathanstenzel
Posts: 12
Joined: Sat Feb 21, 2015 3:50 am

Re: An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

Postby nathanstenzel » Tue Mar 17, 2015 4:26 am

I have just committed a parametric version. It scales in x,y,z. You can still turn on and off the digits. The wire traces could use some fine tuning.

nathanstenzel
Posts: 12
Joined: Sat Feb 21, 2015 3:50 am

Re: An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

Postby nathanstenzel » Fri Mar 20, 2015 3:23 am

I need some measurements for the chicago screws in the cyborg beast 2 kit. I want to set my design to use the proper screw hole size.

nathanstenzel
Posts: 12
Joined: Sat Feb 21, 2015 3:50 am

Re: An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

Postby nathanstenzel » Fri Mar 20, 2015 4:25 am

For now, I made the assumption that scale of 100% is the correct size for the holes for the chicago screws. I have just committed a change where all but the screw holes in the thumb will obey a scale_screws boolean value.

nathanstenzel
Posts: 12
Joined: Sat Feb 21, 2015 3:50 am

Re: An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

Postby nathanstenzel » Fri Mar 20, 2015 4:27 am

For now, I am assuming that 100% scale for the cyborg beast 2 kit is the normal sized hole for the chicago screws. Does that sound right?

nathanstenzel
Posts: 12
Joined: Sat Feb 21, 2015 3:50 am

Re: An OpenSCAD version of the cyborg beast palm with fingers you can add and remove

Postby nathanstenzel » Sat Mar 21, 2015 7:17 pm

It looks like scaling the width also adjusts the height. Also, if you get too much of a difference, we still get bad results, just like we did with the STL file.


Return to “Hands”

Who is online

Users browsing this forum: No registered users and 1 guest