Re: What projects are you doing?
|
And I'm still trying to learn how to turn threads !
george
On Sunday, December 10, 2023 at 04:07:50 PM PST, Chris Albertson <albertson.chris@...> wrote:
Project? ?
My last big project was a CNC conversion of a HF Mini Mill. ?I added computer contoled motor to all three axes. ? Now I¡¯m on to the current project which is robotics parts. ??
Many of the parts are 3D printed but there are metal parts that need turning and some milling. ?And some of the plastic parts need finish work on a machine tool.
3D printed plastic is only about as accurate as metal castings so I have to machine the plastic where it touches precision metal parts. ?The Mini Lathe and mini Mill are good enough for this because I don¡¯t need to make high-precision parts like bearing races. ?I buy sealed bearing units and press fit them into the plastic parts. ?I make the metal shafts and other small parts. ?In total, there are 12 motors, 60 sealed bearing units, 24 timing belts, and lots of?opportunities to do small-scale machine work
The current project is a robot quadruped that is the size of a small dog. ?It is based on a design by ODRI but redesigned for lower cost. ?Right now I am prototyping parts, nowhere near ready to assemble a complete robot. ?That may happen in 2024. ??
Someone at a university made a video that shows the basic design and then the parts inside. ?All the details are different in mine but the basic plan is the same. |
Here is one of the subassemblies in my version. ?You will need to use the ¡°exploder¡± to see inside and the rotating in 3D to see the exploded parts.?https://a360.co/4abPa2f
My advice about ¡°setting up a lathe¡± ¡ª Make parts, then if the parts don¡¯t come out with enough quality, figure out why and fix that problem. ?This way you only fix what matters and you actualy get stuff done.
On Dec 10, 2023, at 9:11?AM, Ryan H via groups.io <ifly172@...> wrote:
