Joytingle Update
Rabbit Ray - Backer's Update
Hello!
Dear backers, it's a year since you supported our first Indiegogo campaign. Thank you for believing in Joytingle. Since the last gathering in August 16, 2014 - there are new developments:
1) Did you know -
- There are 7 points to consider before choosing the right screw?
- A magnet's shape determines it's polarity arrangement?
Neither did I. But as the engineering is finalised, these details emerged. [Read Below]
Plus, the mechanical hurdle that solves the last puzzle in the development.
2) plush toy will be removed - due to cost consideration.
1) Did you know -
- There are 7 points to consider before choosing the right screw?
- A magnet's shape determines it's polarity arrangement?
Neither did I. But as the engineering is finalised, these details emerged. [Read Below]
Plus, the mechanical hurdle that solves the last puzzle in the development.
2) plush toy will be removed - due to cost consideration.
7 points to identify when choosing the right screws
I used to not think much about screws. They are ubiquitous, quietly holding parts together.
Producing Rabbit Ray - makes me realise how important they are to maintain the strength integrity (and safety)! Here are the 7 points -
1) Material
2) Screw Head Recess \ Driver Style (This means the inner shape which the screw driver uses. There are actually 28 variations) Seen here is the Torx-internal (the 6 point-star inside the screw head).
3) Screw Heads
This is important because screws are exposed and the screw head (round, flat) determines how seamless the screw sits on the surface. There are 10 variations. Seen here is the Pan (slightly rounded head with short vertical sides).
4) Thread body - this is the crux of screws. This diameter matters in mechanical parts. They are usually stated as M4, M5 etc. - M_ with the different size.
5) Screw length
6) Thread space - how thick or fine is the thread? And what is the spacing between them? Usually, the finer ones require pre-threading.
7) Tail: another give-away - Flat screws (as seen here) require pre-threading. Those with a pointy can accomplish an all-in-one fastening+threading.
Producing Rabbit Ray - makes me realise how important they are to maintain the strength integrity (and safety)! Here are the 7 points -
1) Material
2) Screw Head Recess \ Driver Style (This means the inner shape which the screw driver uses. There are actually 28 variations) Seen here is the Torx-internal (the 6 point-star inside the screw head).
3) Screw Heads
This is important because screws are exposed and the screw head (round, flat) determines how seamless the screw sits on the surface. There are 10 variations. Seen here is the Pan (slightly rounded head with short vertical sides).
4) Thread body - this is the crux of screws. This diameter matters in mechanical parts. They are usually stated as M4, M5 etc. - M_ with the different size.
5) Screw length
6) Thread space - how thick or fine is the thread? And what is the spacing between them? Usually, the finer ones require pre-threading.
7) Tail: another give-away - Flat screws (as seen here) require pre-threading. Those with a pointy can accomplish an all-in-one fastening+threading.
A Magnet's shape can determines the polarity arrangement.
My first impression of magnets were basic - North on one side, South on the other. Example: a round magnet like a coin - have 2 faces. Hence one polarity on each side.
But choosing the right magnets for Rabbit Ray taught me a surprising fact:
Square Magnets can have both North and South polarity on the same surface. This means it can create a unique "locking" and - spin another square magnet. This advantage can be extended to "spin" the 2 rabbit halves until they meet. This is a distinct advantage square magnets have over round magnets.
But choosing the right magnets for Rabbit Ray taught me a surprising fact:
Square Magnets can have both North and South polarity on the same surface. This means it can create a unique "locking" and - spin another square magnet. This advantage can be extended to "spin" the 2 rabbit halves until they meet. This is a distinct advantage square magnets have over round magnets.
Plush will not continue.
The cute red blood cell, white blood cell and hand puppet are cute, but not cost-friendly.
On top of manufacturing cost, there are additional child-safety testing cost for every single material used.
Example: for red blood cell - a separate chemical test is required for 1) the red fabric, 2) the white fabric 3) the black thread;
4) Mechanical test for the sewing of each part. So there are 3 parts.
A) joining the fabric from the red fabric to the left eye,
B) for the right eye and
C) for the entire red fabric body.
So for each different colour and sewed parts, the cost for child-safety test increases.
Given this, Joytingle will not proceed with plush. All funds will be focused onto the plastic Rabbit Ray.
> Backers who chose the red blood cell and hand puppet set - can opt for a refund or a top-up to convert to the plastic Rabbit Ray doll. The new plastic doll's cost is expected to be more consumer-friendly.
On top of manufacturing cost, there are additional child-safety testing cost for every single material used.
Example: for red blood cell - a separate chemical test is required for 1) the red fabric, 2) the white fabric 3) the black thread;
4) Mechanical test for the sewing of each part. So there are 3 parts.
A) joining the fabric from the red fabric to the left eye,
B) for the right eye and
C) for the entire red fabric body.
So for each different colour and sewed parts, the cost for child-safety test increases.
Given this, Joytingle will not proceed with plush. All funds will be focused onto the plastic Rabbit Ray.
> Backers who chose the red blood cell and hand puppet set - can opt for a refund or a top-up to convert to the plastic Rabbit Ray doll. The new plastic doll's cost is expected to be more consumer-friendly.
The last puzzle in the mechanical development : real liquids
One of Rabbit Ray's strength is providing kids with a realistic experience of drawing blood and injecting real liquids into it's hands.
The challenge is to create it with little or no leakage.
Here are some of the experiments carried out -
1) A small water bag was considered. However, a 50ml-size is not easily available and the small volume order does not interest manufacturers to customise one.
2) After studying fluid-mechanics, a single-hole container can provide a 2 way water path. There must be no other holes except for the designated single-hole, because
it can creates a partial-vacuum environment to hold the water
For the August 16 meeting, this was the proposed approach.
Customising a single-hole container to Rabbit Ray's hand shape will be costly. The next best alternative is to source for single-hole containers that can fit into the slender 10mm arms. The answer - eye dropper bottles.
After sourcing the bottles with suitable dimensions, it was tested. It works perfectly to hold liquid without leaking. However, when injection happens, it leaks.
Upon checking, it goes back to a simple physics principle. Water is slightly compressible - but with the introduction of more liquids (through injection), it cannot compress it's current volume further - hence leaking. This problem is repeated with 1) as well.
3) Learning from above, the trick is to create a chamber that can expand and contract accordingly - in response to the injection (increasing volume) and drawing blood (decreasing volume).
It will allow 2 realistic experiences:
a) "blood" is able to drip out (on demand) - helpful for demonstrating the "drip" method in blood-draw for neonatal (newborn, infant) care.
When the educational demonstration is over, the dripping can stop with no leakages.
b) "vaccines" can be injected easily with no leakage.
How does Joytingle create this? You will experience it when you receive your doll.
I look forward to hearing your thoughts when you try it.
With gratitude,
Esther
The challenge is to create it with little or no leakage.
Here are some of the experiments carried out -
1) A small water bag was considered. However, a 50ml-size is not easily available and the small volume order does not interest manufacturers to customise one.
2) After studying fluid-mechanics, a single-hole container can provide a 2 way water path. There must be no other holes except for the designated single-hole, because
it can creates a partial-vacuum environment to hold the water
For the August 16 meeting, this was the proposed approach.
Customising a single-hole container to Rabbit Ray's hand shape will be costly. The next best alternative is to source for single-hole containers that can fit into the slender 10mm arms. The answer - eye dropper bottles.
After sourcing the bottles with suitable dimensions, it was tested. It works perfectly to hold liquid without leaking. However, when injection happens, it leaks.
Upon checking, it goes back to a simple physics principle. Water is slightly compressible - but with the introduction of more liquids (through injection), it cannot compress it's current volume further - hence leaking. This problem is repeated with 1) as well.
3) Learning from above, the trick is to create a chamber that can expand and contract accordingly - in response to the injection (increasing volume) and drawing blood (decreasing volume).
It will allow 2 realistic experiences:
a) "blood" is able to drip out (on demand) - helpful for demonstrating the "drip" method in blood-draw for neonatal (newborn, infant) care.
When the educational demonstration is over, the dripping can stop with no leakages.
b) "vaccines" can be injected easily with no leakage.
How does Joytingle create this? You will experience it when you receive your doll.
I look forward to hearing your thoughts when you try it.
With gratitude,
Esther
Contact
Email: estherspeaks@joytingle.com
Website: joytingle.com
Location: 8 Prince George's Park Singapore
Phone: 65-9752-3871
Facebook: facebook.com/joytingle.friends
Twitter: @joytingle