Building a 3d model on rhino5 of an axis head to run some tests

A longtime ago I’ve learned rhino at school and that’s the reason I used it for these task.

First I started by drawing a circle, than using offset curve I drew more concentric circles that I copied to a certain distance, by making a line and using mirror in the mid point of that line. From there i made more horizontal and vertical lines using some of the above tools, and used trim to take out the some parts off the lines leaving behind just some out lines do extrude my model.

Press Fit

I started my press fit task based on a triangle as base material I used some old 3mm acrylic from a store front.

2nd - some basic ideas I already have in mind…( at this point everything is changeable):

Motors - I intend to use dc motors for many reasons, the 1st one being they are more common, then it's easier to buy a used powerful one. And, as I recovered many encoders from hp printers, I can get the proper positioning feedback I need; and the 2nd reason is that I'm going to learn how to read and control input and output devices, nothing better than combine them both on my final project. With hi-torque, both stopped and in motion, good gear reduction, hi-durability and being available as cheap used parts, I found car window and windscreen wiper motors to be apparently ideal for my project…

computer-aided design

Building a 3d model on rhino5 of an axis head to run some tests

A longtime ago I’ve learned Rhino at school and that’s the reason I used it for this task.

First I started by drawing a circle, then using offset curve I drew more concentric circles that I copied to a certain distance, by making a line and using mirror in the mid point of that line. From there I made more horizontal and vertical lines using some of the above tools, and used trim to take out the some parts of the lines leaving behind just some outlines do extrude my model.

With the combination of some solid extrusions and a couple of Boolean commands like union and difference, I easily built my head and then I used fillet edge to smooth the angles.

To finish I added a few more parts I had already drawed and made a quick basic rendering on flamingo.

Things i do and don’t like in rhino:

Don’t

-not free
-not full open source
-somehow it doesn’t likes boolean tangent surfaces
-not great for small screens

Do

-fast beginner learning curve
-fantastic help menu for beginners with text and small animation that pops up as you choose a command
-you can work as you please: buttons, menus and bar of commands, or combine them because they are always available on screen
-it's a powerfull tool with many powerfull pluggins and one of the cheapest in the market
- works, more or less well, with all of 3d /cad usual structures
-it is kind of “open code”

see https://drive.google.com/folderview?id=0B-zSpF8Sy3QLM0pIZmw4c1lRb1k&usp=sharing for files