R5’s Bad Motivator 2025

 February 2025.....

Back on it again these last few months, waiting for delivery of different components to get R5’s bad motivator setup all working from one switch off the RC transmitter.

A new receiver paired to use a different channel not used on main body, worked when bench testing, but didn't work when both receivers were powered up. So it's back to the drawing board on this.....

An Adafruit sound board, mini amplifier, voltage regulator and utilising a speaker out of my parts bin lol.

Then 3D printing of brackets to mount these parts.

Then one new momentary servo controlled switch to control the adafruit sound board, and one on/off switch for the ‘Bad Motivator smoke setup’.

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!

‘Trading Card Dispenser’ control box - servo switch controlled

October 1st

Back at the beginning of the month, before I fitted the remote control, inside my transmitter, I had thought about utilising the servo activated switch module, that I’d bought for the GOUD-4 droid.

So I combined the bracket I’d designed up for it with a new saved version of the control box base.

wrong RC servo switch.....

Some other modifications were needed to accommodate the alternative model timer circuit board I’d bought, as well as doing away with the lid's side clips and replacing them with a brass knurled threaded insert. The lid section needed alterations to and the design of the slots was simplified. I did away with the LED ‘on’ indicator as it wasn’t necessary.

Have been test printing both in work and at home. It was good to use my printer that’s not been used in over a year. Dusted off the Tevo Tarantula Pro (Orange), fired it up, first print, perfectly just like always.

Probably should mention using online program, Astroprints for creating the gcode for printing on the Tevo.

UPDATE October 2024:

The RC servo switch seen in the above images was the wrong one!

I've updated with the correct RC switch, so for more I'll be posting up a new correct set of parts & 3D printable components.