Showing posts with label weathering. Show all posts
Showing posts with label weathering. Show all posts

October 17, 2024

Treadwell WED-15-77: Part 28


July 2024:
Here was to be the final instalment of the Treadwell build 😀
Recent work has been mostly focused on making the sledge to transport WED on, via the cars roof rack.

Sounds:
Needed to fit a speaker and wasn’t happy with my original position idea. So decided to fit in inside the ‘logic housing’.

Position located:

How to find the centre of a circle lol

Dug out this adjustable hole cutter. Think I last used this to make the holes in R5’s legs!

Making a start on the hole.

One hole cut out.

Speaker fitted with its spacer ring, that I had previously made for the GOID-4 messenger Droid.

Re-installed the ‘Logic housing’ (the hole cutter wouldn’t fit inside it).

I had added longer leads from it to reach the amplifier board.
Just need to finish off some connections and save some sound files. Keep forgetting these last two pieces. Needed to buy a proper servo controlled switch, similar to the one used in R5, but this ones a single and much smaller.
Another tweak, was the addition of a volume (potentiometer) to boost the sound. When I couldn’t hear it at Mshed event, I knew I had to install one.
3D printed the knob from a file on the Prusa printables website.

Had to rewire the signal to volume dial to amp to speaker wires.

Claw arm servo:
The new micro servo arrived sooner than expected lol, but I had already started on a modified 3D printable housing to fit a new metal geared SG90 size servo. It didn’t take up much more space , but i had to reposition the securing screw, and add a second one.

I used brass knurled threaded inserts & M3 screws.

I made a slot in the side to allow the servo horn some freedom. This once finished, could be covered.

I needed to add a slot in the claws tube to allow some flexibility for the wire that connects to the servo horn.

I also added a location hole for a screw.

Next was to remove the servo plug so that it could connect with the servo lead.

Almost forgot about painting it…..
Primer applied after some sanding.

Weathering:
Dug out the paints and got to adding brown, yellow and ochre.

Then black to give the dirty oily look.
At the Mshed event, I was asked by some of the builders if Tread was metal construction, they were surprised to hear the upper section was all 3D printing.

Upgrades:
I know I said this was going to be the last post on this build, but I have a few more tweeks to do with things I wasn’t happy with, so there’s more to come.


July 25th…….
Wheels:
The original wheels were spaced away from the base, as can be seen in these two  photo.

original deleted scene SW ANH
remade version for the prequals
    

So I decided to draw up some spacers and 3D printed them. This along with some more substantial axle bushes with bearings in, to better support and properly align the wheels. And finally, some new axle's at over 180mm in length!

June 29, 2023

Treadwell WED-15 droid build : Part 19 - wheels/body/tracks

 
3D printing:
Printed off the other three drive wheels, see last post. These green items are printed in PLA+ filament, l ordered to try, instead of standard PLA , for work.

Next up was to print off the idling wheels (image below). Each one I managed to get down to 11hrs per whole wheel. Allowing the 3D printer to be free for work, these were an overnight/weekend print run.

I had a look for suitable fixings for the idlers, and found some old recycled furniture bolts that where just the right length.

So before printing off the wheels, I made an adjustment to allow the bolt head to be recessed flush with the outside face of the wheel. I also drew up and printed off some bushes for the bolts. The bushes help space the wheel away from the body, as well as threading onto the bolt, helping to keep it located. I repurposed and added a soft washer to help with possible friction.

I then sprayed these up with primer, and eventually with silver paint.


The little Details:

Eye servo lead:
The lead for the servo eye movement, needed a sleeve to cover it up, also adding some strength support to it as well. I had kept some thin walled black tubing that was just wide enough for the lead (minus its plug) to slide through.

I added a cable tie to the inside of the eye opening, pull prevention, and then drilled a hole in the upper neck for it to pass through. I then refitted the plug to connect with the appropriate servo lead.

Eye pivot tube:
To stop ‘wiggle’ from the eye supports arms, I drilled holes through into the pivot tube, and secured. This helps prevent the eyes from independent movement when the servo moves them. It was only slight, but it annoyed me lol.

I recently bought off eBay:
STAR WARS MOVIE FORCE ATTAX SERIES  2 BASE / BASIC CARD no19: Treadwell Droid.

Straight knurls:
On closer inspection of the card, I noticed the straight knurled rings around the mast. Don’t know how I missed this detail?!?!?

So I made a copy of the 3D mast model and modified it to include these details. As I wasn’t going to reprint the whole mast again, I decided to just print off the details as rings, with a thin wall thickness, and these would be glued onto the masts diameters. Better than nothing lol. They don’t look too bad actually. The first ring I glued into place.....then thought.....it would be easier to spray them up first before gluing them in place lol oh well.
Sanded back the paint for a better surface to glue to.


For the others, I just cut them to the correct length [diameter], and primed/sprayed them silver. The mast had to have it's paint removed where these were going to be glued.

Base Antenna:
I had drawn this up a few months back but was waiting on the chance I found any better detailed pictures. No such luck, but the trading card did help, so this was the next piece to be 3D printed. 
The idea is based on a split spherical design, with a ‘bolt’ that holds the two ridged semi-circular hemispheres together with the option to adjust the angle.
Filler primer applied.


The 3D version doesn't do this lol, it just looks like it would, I did add a screw location for detail. Lastly I printed off a backing washer to secure to the inside of the lid panel.

The rear lid panel has now had it's inner panel, cut out and glued/clamped in place. This is to give it strength, but also alignment with the panel supports.

Painting & weathering:
I started to apply the acrylic burnt umber and yellow ochre that I used on R5 all those years ago, starting with the mast.

I drilled holes in the arms and mast to accept the wires and tubes that would 'operate' them.

Tracks:
Searching since last post with no luck..... then I came across YouTube videos of model makers making their own tracks. This gave me the idea to use the 3D model I'd created for the tracks and converted them into a mold. I ordered a small batch of Mouldcraft Black Poly Flex 60 Shore Fast Cure 120g Polyurethane Casting Rubber, as a tester to see if I could mold/make my own.

I designed the mold in two half's, the front (outer tread) and rear (inner) section.

I also 3D printed off a joining mold. This was so that the sections of tread could be joined together...... hopefully.

I tested a small batch of the 60 shore and it was to sticky after it had cured, no way it would of stood up to actual track movement lol.


Test sample, binned along with the mold.
So I ordered some 85 shore, let's hope this is better.

Drive wheels:
As mentioned above, in my design haste, I'd forgotten to add the step detail to the front face. So I updated the 3D stl file and then printed off a set of disc's to fit onto the front of the wheels. These were glued in place and then all had primer and then sprayed in Chrome, which dulled to a nice Aluminium look once clear coat was applied.



With our South West Builders Day event approaching, I needed some axle locations for the drive wheels. These will just be to help hold them in place.

Base:
Another BIG annoyance is that on the original magazine article it clearly shows that as well as the upper front angle, there is also a lower one as well. This can also be seen in the rear image seen in the deleted scenes. This detail is missing from the builders own blueprints unfortunately.

Don't know if I can modify the base to suit..... it could be a lot of work, something to look into though.

Tracks pt2:
This last week has been last minute finishing off details as best I can before Sunday’s event.
I wanted tracks but there wasn’t going to be enough time, so I resorted to rubber mats id rescued in work a few months back. These were cut to width and once the ends were trimmed flush, I superglued them together.

These were joined in a loop with a staggered join.
The finished track loop turned out great.

Once dried, I fitted them onto the wheels.
Really happy with this, even if they are just display tracks..... more updates next month.

March 06, 2021

R4-D4 dome - Life-form scanner - part 18

Re-wire switches:

The two switches that I had, just inside the opening of the dome, needed to be relocated to just clean up everything. These switches controlled the 'fake' electronics panel LED's as well as the Holoprojector light LED.

Am thinking that the Holo LED will be controlled in the future via a remote, to increase it's brightness when needed.

.....next up....

Painting of parts:

I had applied filler primer and once dried, sanded lightly the components for the LFS system.

I wasn't 100% sure what colour would be best for the internal components of R4's dome, but as I had already sprayed the lid panel matt black. I decided that the main inside panel would work better this colour than say white.


The lower servo lift was also sprayed up black.
The servo cover & LFS screen, both got silver paint. The internal panels and top, got a dusting of silver to help highlight the details.

The screws I had inserted to keep paint out of the threads, I decided to keep, as they blended in better than the clean versions.

I then applied a clear coat and then some black to add to the weathered effect. The orange primer also appears to show through in some places. This isn't as bad as I first thought lol, as it actually looks like sand in the crevices etc..... result!

I then installed it all in the dome.


The bracket can be seen installed. Up next is finishing off the electrical install and then the Pololu controller and electrical hook up.

February 23, 2021

Utility arm UPPER socket screen (Part 4)

 Can’t believe it’s been two months since I fitted the upper utility arm socket screen!

In my attempt to finish off unfinished parts, I got on with weathering it. So far I have just added matt black , but like the lower one, I will add burnt umber & ochre yellow to give it that Tatooine sandy feel.
Utility arm socket screen