Thursday, September 07, 2006

 

More progress:


Exact dimensions and measurements of what's finished will probably be released this weekend, since this is starting to come together pretty close to my expectations. Now I just hope it dosen't need a whole lot of torque, so I can fit the relatively small stepper motors to it.

Comments:
Now I just hope it dosen't need a whole lot of torque, so I can fit the relatively small stepper motors to it.

I'll pray for you. Actually, just be careful where you apply thrust from those threaded rods and you should be in good shape.

I'm a little worried by what I see, though. Am I right in thinking that you will be making another support for the horizontal plane work surface?

As well, it seems like there is a lot of distance between the horizontal supports on your vertical axis with respect to the width of that extruder platform. Are you not worried that you could get a bit of judder around the thrust collar from bad alighnment?
 
"Am I right in thinking that you will be making another support for the horizontal plane work surface?"

Probably, depending on what kind of bearing I can find for it. If I can get a perfectly sized brass or nylon setup, I might not need it. It does seem to handle angular stress pretty well.

"Are you not worried that you could get a bit of judder around the thrust collar from bad alighnment?"

A little. Time will tell whether the arm can support weight and still slide freely, though it's looking pretty good so far. I have very slipperly nylon tubes guiding the 1/4" rod.


Worst case scenario, I go to a thrift store and scrounge some big NEMA's from old dot-matrix printers.
 
Update: Bottom platform is pretty much completed. Slides easily, and I haven't even put bearings between the threaded rod and wood yet.

The vertical slider seems to be a little more tricky. Another trip to the HW store might clear clear up another round of components for the next phase.
 
Post a Comment

Links to this post:

Create a Link



<< Home

This page is powered by Blogger. Isn't yours?

Subscribe to
Posts [Atom]