13 Jun 2023

My First Challenge - The Lathe

I have been away from making marble runs for a long time, and it is time to start again. 

I made a little part shaped like a trumpet. The function is to catch a ball that jumps out of the looped rail. (I have written about the looped rail in the previous blog post: https://puzzlesense.blogspot.com/2023/02/my-challenge-to-make-marble-run-machine_21.html)


The looped rail looks like a roller coaster, and it is pretty fun to look at. Making a shape-like trumpet requires the use of a lathe.

Well, I wondered what to do. I have never used the lathe to curb wood, so I watched some YouTube videos and learnt how to use it. My husband, Juno, found nice timber. It was New Guinea Walnut. He cut it to a length of about 10 cm (3.9 in) and cut off every four edges, and made it an octagon bar. It was because it should have been many jobs to cut square timber into a cylinder shape.


Juno and I made sure again how to fix the timber on the lathe by watching YouTube videos. Then, set the tool rest, wear the face mask, and we are ready to curb.


In conclusion, it was not as difficult as I imagined. People who are professionals in using lathes might think my way of curbing was not good, but I was happy with the result; at least I could curb the timber in the shape I wanted with no injury.


Here it is, the ball catcher!
I like the grain; it is beautiful.


The next step should be fixing the ball catcher onto the marble run machine board, yet I still need to design the rail connecting with the catcher.
Even though I could not fix the ball catcher to the marble run machine, I could not wait to see catching jumping balls. Therefore, I held the ball catcher with my hand and tried.


Here is the video. It looks good.


All right, let's design the rails after the balls go through the ball catcher.

31 May 2023

The Experience I Cannot Explain

I'm interested in riddles: magic, impossible objects, puzzles and science. I mean, I like to think of riddles. In that sense, I love science. Science gives me a reason why it moves like that, why it causes that, and so on. It's the same as knowing magic tricks, giving me an Aha moment. This is the most fun part.

When I was small, I loved visiting museums of natural science. To me, they were a place full of wonder. My most significant purpose was looking at dinosaurs' skeleton models. Those giant skeletons led me into the mysterious world long, long ago. When my cousins were interested in Gozila, I thought it wasn't attractive because it was a man-made dinosaur.

Therefore, I was a girl who didn't believe ghost stories that other children and adults insisted they saw. I remember my mother told me that she had seen several glowing faintly round things shimmering over the graves. I had heard that those glow things were a kind of phosphorescence. I trusted the scientist's explanation, so I didn't believe they were ghosts.

However, the kid was the kid. Even if I had read many children's science books and acted as if I knew everything, I was stupid and lacked courage and was a timid kid. I couldn't answer why I couldn't go to a cemetery at night, even though I didn't believe in the existence of ghosts. 

Since then, the Olympic games have been held many times (I wouldn't say how many times.), and the world has changed in good and bad ways. Me? I haven't changed at all. I'm still curious, love to solve riddles and mysteries, and my favourite place to go is still science museums, and say hello to T-REXs. I don't believe in ghosts, but I still cannot go to cemeteries or dilapidated houses at night. That's why I love mystery stories, puzzles, and magic that don't make me imagine terror.
 
As for me, more than two years ago, in summer, the perfect event happened. I was on the front yard lawn, pulling weeds with a weed puller.

 
I found where weeds grow in clumps, and I crouched down, and I stuck the tool into the ground. Then, as soon as I stabbed it, suddenly water spurted out from the ground, and my face got wet. The water seemed at least 30 cm (11 in) high or more. It all happened so quickly, then stopped immediately. It seemed like water spurting out vertically and thinly like a water gun.


I talked about that to my friends. Some of them thought I had struck a water pipe, but there was no water pipe underneath; it was just a lawn. Even if it was a pipe, I couldn't make a hole with a weed puller. Then, what was it? There is a unique frog, "Litoria platycephala". The popular name is the water-holding frog. 


It seemed like an answer, but later on, I realized that the habitat area wasn't around here. I was back to square one.

It wasn't a pipe and frog. If so, what else can I think of?
I didn't drink alcohol at the time. It wasn't my slip of memory, I clearly remember I got wet. I remember the feeling that water hit my face. I rushed into the bathroom while avoiding water in my eyes and washed my face because I couldn't tell what kind of water it was. Believe it or not, it really happened.

Ghost or alien stories make people feel strange, mysterious and dramatic. Those events happen at night, so they sound more mysterious. Mine happened at a time when the sun was shining brightly. 

"WATER SUDDENLY SPROUTED OUT FROM THE GROUND"
There's nothing mysterious and dramatic. I wonder if I were an editor of a weekly magazine, would I be able to write in a more interesting way?
Anyway, I tweeted about this experience on Twitter, but I haven't got any response. The story doesn't have any element to attract others' interests. Though, I cannot forget what I experienced. It was quite odd and strange.

I'm wondering, are there scientists who have encountered something that they cannot explain logically or scientifically? If so, how do they accept it? 
 
Has anyone had an experience getting wet with sudden water that spouted out of the ground? 
If you know the reason, would you explain it to me?

17 May 2023

Why Didn't I Notice? (Fusion 360)

I downloaded the trial version of Fusion 360 at the beginning of May and have been practising it. However, I suddenly noticed something essential.
At the workplace, I cannot use the software connecting to the internet because one of the software my husband and I use sometimes causes failure. Therefore, I needed to ensure whether Fusion 360 could be used without the internet (safe mode). As I thought, it can only be used with the internet. I should have noticed earlier.

I have been learning Fusion 360 for about two weeks and abandoned it. What a shame.

I had kept aside two projects while learning Fusion 360. It is time to restart them. I felt that I wasted time but never mind. It was fun to use the new software.

The CNC routers in the workplace have been working for the job, and I cannot use them for a while. Until I can use them, I will draw rough sketches for a Marble run machine and an automaton.

1 May 2023

My Trial of Fusion 460

I downloaded a 30-day free version of Fusion 360 three days ago. I'm impressed to see many icons on the menu bar. The software has many functions, so it requires lots of time to learn how to use them.



Firstly, I've started learning the basic of the software using YouTube videos. Fortunately, there are plenty of videos on YouTube. I couldn't wait to create gears, but I told myself I must learn the basics, like drawing lines. Sometimes I spend lots of time finding the menu I want, but using new software is fun. After I acquire the basics, I will draw an automaton I plan to make with Fusion 360.

I have 27 days left that I'm able to use the software for free. I know it's impossible to know all the functions, yet I would like to learn at least the functions I need 28 days later. At that time, if I can use the software as I want and it's useful, I will buy it.

The price is high. Honestly, I hesitate to buy it. I will look at the software website, and if I could use the free version personally, I'll try it. My husband says he won't use the software because he likes the current 3D software he's been using. Therefore, we don't use Fusion 360 for business, just for my fun of making automata and marble run machines.

I sometimes dream it would be fantastic if I could sell my creations using Fusion 360. Thinking of my daily schedule, I don't have extra time to make my creations for business, so it's not easy to make my dream come true. Anyway, let me try to use the software and see how it goes.

25 Apr 2023

The Lunar Explorer HAKUTO-R

I don't know why space rockets excite me. Tonight is the night of the landing of HAKUTO-R on the moon. This rocket contains some types of equipment for experiments; the Rashid rover (designed by MBRSC, UAE); a transformable lunar robot SORA-Q (JAXA and some Japanese companies and a university); an artificial intelligence flight computer (MCSS, Canada) and so on. HAKUTO-R was launched on 11th December 2022, and it will reach the moon's surface soon. The landing will be broadcast on YouTube tonight.
 

Interestingly, one of the companies that helped create the transformable lunar robot was Takara Tomy. They are the famous toy maker in Japan. Come to think of it, they certainly produce toy robots, but I never thought that toy companies could help create a robot for lunar exploration.

The landing time will be midnight here in Australia. I wonder if I will be able to stay awake until that time.
I hope HAKUTO-R can land on the moon safely and the experiment goes well.