Dyne's Treadwell

[Dyne]

Current Status: CAD Work and Acquiring Parts


Build Log Index

• This Post: Table of Contents and Adventures in CAD that I probably won't end up using.
  
• Post #20: Lens Retainer
  
• Post #25: Casting Lenses
  
• Post #32: First purchases and first attempt to commit to the build
  
• Post #37: Results of Printed Lens test (from post #34)
  
• Post #43: Second attempt to commit, ending waffling on drive system
  
• Post #47: Tank Mixing setup
  
• Post #49: Telescoping neck thoughts
  

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Introduction

According to the files on my computer, I did my first work on my Treadwell on September 12 of 2016 (which sounds about right, as it was just after last Dragoncon).  Mostly I just collected reference and did some CAD for the wheels, which is hardly a stunning accomplishment.




I've described elsewhere the reasons I didn't progress much further than this for the intervening five months (short version: Halloween, immediately followed by loss of motivation due to a 3D printer I thought was broken, two long-lasting colds, and politics).  But I recently have recovered said motivation and figured out the printer was fine, so work has resumed.

I am starting with the head, largely because this is the most complex part of a Treadwell.  As I've mentioned in other posts, I'm not trying to reproduce any specific Treadwell, but it will be recognizable as a Treadwell.  I will also be updating/refining the design in a few minor ways.  I will be releasing files and drawings as I go, though it may take some time to get to that point.

In any event, I recently printed savagecreature's model of the interior lens from the Paterson slide projector, used for Treadwell's eye.  I did a basic model of one "eyebox" and printed out a short slice from the lens end of the eyebox to see how they worked together.  Text added is temporary.





Obviously, the eyebox in the plans here on the site do not accommodate the flange of the lens holder.  I'll be fixing that as soon as I get a chance to work on the model further.

As you can probably see, there's a slight gap between the lens holder and the eyebox top and bottom (above "other eye").  This is probably fine, but I can easily adjust them.

I am planning to print my eyeboxes because they will have modeled in details.  Because of my printer's build volume, I'll have to cut each one in half and rejoin them.  Each half of each eye will probably take 12-14 hours to print.  That's a long print, but not a challenging one, and it'll take nowhere near as long to print as the parts for a BB-8.

That's all I have time to write for now.  Until next time.