02- Dimensions Corrected!!

So last time i made the model i though the number shown when i used the circle tool was radius BUT it was diametre so the dimesions were WAYY off.

Corrected them and used correctly sized models for the battery and arduino nano.

Im really tryna make it printable and i think its about done i’ll need to add the buttons and stuff tho lets see that tmrw tho.

Quote of the day:

“If you are waiting for the waiter…does that make you the waiter??”
~art of war (Sun Tzu)

LightSaber !!!

LightZaberrr

Why?:

• So Other than all the technical things I really enjoy cosplaying and I did make Darth Vaders whole suit a while back with EVA foam,
  it was almost complete. Just Missing 1 thing

• So yeah that is the motivation for it, coz buying a lightSaber is EXPENSIVE and imo making it is very much more cooler!

How?:

• So what I’m thinking of rn is to first off have the most prominent feature i.e. The Blade Emerging, would be a light fill up
  Coz having a mechanically telescoping glade 😭 just STOP thats gonna be brutal.
• then having an IMU to get the tilt and swing Data.
• An Audio Module to process said data into the audio file’s playback parametres.
• a Speaker!
• I will have some controls for the Light colors but i think they should rather be dealt with remotely and not have more than one button on the lightsaber itself.
• Made the Cad Model today and got the Dimension WRONG 😭😭, WHY WHY 😭so there goes my 1 hour .

My Corner of the internet!-01

Why?:

Well first off its just a really cool thing to have, a personal website? that would look exactly like what i want ? hell yeah!!🔥🔥🔥

How?:

Probably only a static HTML/CSS/JS webpage as of now, I did learn about these languages in 8th grade (4 years ago💀) so mostly I brushed up on that and made basic stuff and used only placeholder texts other than in the about me (all that is true , yes ik im goated)

Why does it look like this?:

As you can see in the second image, Im using that color pallete for two reasons:

• Its the album cover of one of my favourite band called “GlassBeach”.
• The color pallete is lwk tuff on its own like its so unique but also not too much on the eye.

So yes thats it for today! Gonna make it Fire tmrw for sure for sure.

My Corner of the internet!-01

Why?:

Well first off its just a really cool thing to have, a personal website? that would look exactly like what i want ? hell yeah!!🔥🔥🔥

How?:

Probably only a static HTML/CSS/JS webpage as of now, I did learn about these languages in 8th grade (4 years ago💀) so mostly I brushed up on that and made basic stuff and used only placeholder texts other than in the about me (all that is true , yes ik im goated)

Why does it look like this?:

As you can see in the second image, Im using that color pallete for two reasons:

• Its the album cover of one of my favourite band called “GlassBeach”.
• The color pallete is lwk tuff on its own like its so unique but also not too much on the eye.

So yes thats it for today! Gonna make it Fire tmrw for sure for sure.

1 July 2026:

• Submitted for re-review after making journal.md

2 July 2026:

• GOT REGECTED 😭😭
• Reviewer said the 3d model is lacking mounting spaces for electronics and i need a circuit diagram too.

3 July 2026:(2 hours)

• Started working on making the 3d model better. (2 hour)
• Got eepy went to sleep.

4 July 2026:(4 hours)

• Got started with circuit design.
• Learnt about how and why to wire things up.
• Finalized the circuit.(3 horus)
• https://wokwi.com/projects/468617376230200321

5 July 2026:

• Welp Got regected lol. Reviewer said the model is vague about what goes where and there is no code.
• Welp got the code structure done today.( 30 mins)

6 July 2026:

• Got to work on the model , man onshape is toughh but its fun too like i can see it allows to get much advanced things done in it, took thier beginner course.

• Added cavities and slot for the components while also making space for wiring to go through.

• added spaces for servo’s horns to go in and get screwed into to get a firm hold of the legs.

• yeah so going to send it for rereview, lets hope im not missing anything.

Making It Real: TARS from interstellar

Why :

Ever since i watched interstellar, this particular robot has stuck with me. Its ability to make light of dire situations with its “sarcasm” setting 😭. There are a lot of other robots that i find cool, for instance Tony Stark’s robotic arm named “Dummy” Thats on my To do list too, But coming back to TARS I thought it would be better to make it as im only starting out, a robotic arm with AI would be quite a bold choice for a first hardware project.

How :

So originally TARS has 4 segment as you should be able to see in the images below, but having 4 segments is really complex, like say i want to rotate the rightmost segment, for that i would need a motor in the segment next to it , and when the motor rotates, it will not only rotate the rightmost segment, but would also rotate the segment that it is in, depending on which segment is heavier/ harder to rotate.

• So im Simplifying TARS a LOT (Upgrades incoming in future for sure), like only having 3 segments (combining the middle two segments) and having all the components in it, so that when the motors try to rotate the left or right segment, they are rotated easily, also while TARS was autonomous my version would be running via remote control from a phone (with bluetooth or wifi connectivity).
• I thought it would be cool to have a PID controller for its balancing so theres that too, I deliberately placed the accelerometer at the bottom of the middle section as velocity = angular velocity radius from point of rotation* .
• thus the reading of accelrometer would be the Least amplified when its closest to the point of rotation i.e. the ground.

What will be used :

• I would be using foam sheets for the body so that its all lighweight and easy to make too, I dont have a 3D printer ( that would be sooo convinient omg)
• two metal gear Servos.
• an Accelerometer
• An Arduino nano
• two 18650 li-ion batteries
• 2.4 inch SPI TFT LCD display
• Wiring Obviously
• A soldering kit would be a blessing.
• 5V buck convertor

The challenges :

What I feel is that this project is more mechanically challenged that it is in terms of coding and electronics.
TARS had a lot of ways to traverse, it would either start rolling by becoming sort of a wheel, or would have a pull itself forward by first lifting the outermost segments then placing them forward and then pulling them back.
To achieve that type of motion i would need one linear actuator per servo , to lift the outer segments up and then place them down when needed, that would make it unecessarily complicated.

• what I did to dodge that is I Made the Legs slightly longer than the main middle segment.
  With that in rest position to be stable the segments should either be forward or behind the main segment.
• I Pull both segments back slowly and the main segment moves forward ( due to high static friction between the legs and ground the main albiet heavier body is forced to move), then to have another stroke both the legs are SNAPPED foward VERY FAST, this causes the legs to go back in front while pushing the main segment back minimally as the kinetic friction is less and not strong enough to push back the main body.
• Then I pull back to move forward again, and so the loop continues.
• For Turning its the same stick-slip mechanism BUT only one leg at a time , thus TARS pivots about the resting leg!
  I found that pretty elegant. Although I DO plan to fully recreate TARS with Raspberry Pi and a custom AI agent and make it fully autonomous, It would have to wait until i first make this proof of concept.

Thank you for reading, Support me if you too find TARS cool and would like to help me start.

Peace OUT ✌

A Physics Based Car Controller in Unity! (Tire friction simulated !!)

Devlog #2: Adding Friction to them Tires 🔥🔥

So this was a tough one. On the surface the theory is pretty simple, friciton force acts opposite to the direction of motion and its magnitude is friction coeffecient*Normal force on one tire.

that I implemented by calling each tires velocity , and taking its dot product with each tire’s RIGHT vector, so if the result is 1 –> rightways velocity, if its -1 –>leftways velocity and if its 0 then the car is moving straight.

I wrote the code for this and steering which just rotates the front two tires by a set amount. Felt pretty good and pressed play, and BOOM the car is spinning, the tires are spinning, MY HEAD WAS SPINNING.

The majiority of todays time was spent figuring out what was going wrong 😭 , Went through the Unity Docs, reddit and everything couldn’t find the bug.

I set the steering function to rotate the front tires in world space and not local space

welp that was the problem, Just One word!! Makes me think how important part even a small thing plays in a big system and That is my argument against nihillism lol!

Learned how to normalize vectors today and successfully debugged my code. Yup See ya’ll in the Next one!

A Physics Based Car Controller in Unity! (Suspension Physics added)

Devlog #1: Adding Suspension Physics Using Hooke’s Law.

In Cars each tyre has a set off supensions that absorbs shocks and damps it down so that its comfy inside, So it basically is a spring.

So to simulate that in Unity I used Hooke’s Law

that states : Force Exerted By spriing = Spring Constant(material property of spring) X Spring Compression Amount

When we do excert such a force for each tyre of the car, it creates a dynamic spring that changes exerted force by the amount its being compressed VERY COOL.

###But if we leave it like that Its going to oscillate Up and down forever which would not be very realistic. 🥀

So to encounter That I incorporated a damping system which takes In the speed of a given tyre, takes its Dot product with the vector UP , which tells us how fast is the tyre moving up, and **Lower the amount of exerted force as it reaches closer and closer to 0 compression slowwly losing energy and stablizing **

All that was done by subtracting (tyres downward velocity X damping constant) from the Force equation!!

##Andd that wraps it up for today! See ya’ll tmrw!