Treadwell WED-15-77 build : JamesF

[Jaffa007]

Busy building Treadwell, as well as another project I’m working on (top secret).

Making good progress though and really hoping to have him finished ready for Celebration Europe.

After finding out that there’s a mold function in Cura, I thought I’d have a go at casting the lens. So I ordered some 1-1 ration clear resin to test.



This was a test pour as not to waste. The 3D printed mold, was not as good idea as first thought lol so on to plan B, using a proper mold material over the top of one of my previous 3D lens.

We had some of this two part molding putty that when mixed together sets to a solid but still pliable material. So before it set, I placed it over the top of the polypropylene lens I had printed a while ago. Left it overnight to fully cure.
Then in work the next day, I mixed up the resin and poured it into the rubber mold.




The result isn’t that bad:

It does show all the original print layer lines, I might try to remove them.

I reassembled the claw arm components along with the servo pivot horn to activate the lift mechanism. Really happy with this.


The list of little things is a long one.
• The rear lens holders needed to be glued in place.
• The recess in the front of the second eye needed to be cut to allow clearance for the rear lens holder.
•I needed to add captive threaded brass inserts to tabs to help secure the two sections of the eye together. One underneath and one on top that is kinda disguised as one of the detailed ‘rivits’. This will allow future easier access to the servo inside, see next picture:


• The claw arm needed some work to fit inside the body.
• The base plate has now had M6 coach bolts and nuts fitted to better hold it and support the mast structure. I feel better about it’s strength and stability now.

This is from my Blog update part 13.


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