Sports Timing TransponderBlind

in Wearables held by MobiiSystems
Contest Ended, Winner(s) have been selected.
Description:
We have designed a 2.4 GHz transponder that is used for sports timing. We require a plastic housing to be designed for this small wearable device.

The PCB has a solar cell on one side and a small 40 mAh LiPo battery on the other.

The transponder is used in running, cycling and Triathlon type events, so we need it to be completely waterproof, we prefer that the unit is ultrasonically welded to form a hermetically sealed product.

The transponder will need to worn by runners, attached to bicycle forks, attached onto ankle straps, etc. An approach we would like to take with the design is to allow for the transponder itself to have a minimalistic design with a universal mounting option that allows for it to be attached to a separately designed Bike mount, or wrist strap.

Ie: the Bike Mount would be a separate design that cable ties (zip ties) to the front fork of a bicycle, then the transponder clips onto or locks into the bike mount. This would allow for future designed mounting accessories, while keeping the transponder design standard.

The design considerations include:

- The housing must be completely waterproof (Hermetically sealed). We would prefer that the unit is sealed with ultrasonic welding.

- We use a solar cell on the top of the PCB to charge the small LiPo battery, so there should be a transparent section in the housing to allow for light to reach the solar cell so that the LiPo remains charged.

I have attached an image of the transponder as well as an STL file of the PCB Assembly. We can send further information and output files as required.
Wants:
The design needs to be:

- Compact
- Waterproof (parts need to be designed for Ultrasonic welding)
- Universal mounting design to allow the transponder to clip or lock into separately designed mounts in the future.
Software:
  1. SolidWorks

Entries

#15 Rev 3 by Jim81
Fully drafted and ready to go
more
May 18, 2019 16:11
#9 New I.D. by Jim81
Alternate I.D. with all the features from first submittal.
more
May 18, 2019 12:21
#5 Sports Timing Transponder - Hafiz by Endoxos
This Sports Timing Transponder designed to be compact and waterproof by using ultrasonic welding technique. If you look closely, there's excess plastic so it'll be easy for the ultrasonic welder to work perfectly.
This closure consists 2 parts: transparent plastic top/cap and also plastic bottom. The cap designed to be simple cover cap that let the light through to the solar cell. I also make sure that the bottom part capable to be molded. The main/bottom body already equipped with 2 holder for universal straps and flat bottom that'll help for easy mount by future design
please provide the feedback or correction so i can continue to improve the design, thanks :)
more
May 17, 2019 16:41
#6 Transponder Design by LickuidCAD
Hello,
Please find attached some annotated images and the .stl file for my design based on your requirements for the transponder casing. I went with a butt joint and energy director design which keeps the casing thin and light-weight. I saw in your comments you are considering the use of polycarbonate and this was considered in my design as well. If you wish to switch to an amorphous compound I can make the changes accordingly. If you wish to see my calculations and research sources please let me know. The design also includes alignment for the welding and extrusions to hold the PCB in place.
Your feedback is appreciated.
Thank you.
more
May 17, 2019 18:39
#1 Transponder by Jim81
WIP.
more
May 16, 2019 22:21
#4 transponder by gikam
Transponder with adapters for fork and strip band.
Please feedback to optimize.
more
May 17, 2019 15:50
#7 Sports Timing Transponder design concept (A) by Thommy
Hello,
Please find attached a presentation and a STEP file of my design concept based on the requirements of the contest.
Please tell me if there's any feedback about it, or feel free to ask me in case of any questions.
Thank you!
Regards,
Thommy
more
May 17, 2019 23:37
#2 Hermes by Tyler9456
This design was made to be the outer body of a transponder. It would be made of a waterproof plastic and hermetically sealed by a technique called ultrasonic welding. It also has a "window" to allow sunlight to get inside so the battery can recharge via the solar cell inside. It is also made to be attached to sporting equipment or people via zip ties or Velcro straps.
more
May 17, 2019 0:56
#8 transponder case apart by gikam
May 18, 2019 9:14
#10 Transponder Casing Design 2.0 by LickuidCAD
Hey MobiiSystems,
Please find attached the latest version of my ideas for your transponder casing based on your new updated requirements and concept.
As always your feedback is appreciated.
Thank you,
LickuidCAD
more
May 18, 2019 13:09
#11 Sports Timing Transponder - Hafiz mk1 by Endoxos
New design and improvement based on the buyer demand
2 Design: with straps holder and slide slot mechanism
Look forward for the feedback, thanks!
more
May 18, 2019 14:47
#12 Sports Timing Transponder design concept B by Thommy
Hello,
I've made a new concept according to the feedback and comments.
I hope this shape better fits for your imagination.
I created two "slot" design versions concidering the mold. One needs a slider/lifter in the tool, but it's compact. The second is a simple open/close tool design, but it needs more space. I described it in the presentation.
Please check the new concept and give me a feedback.
Thank you!
Thommy
more
May 18, 2019 14:50
#14 transponder v2 by gikam
one mechanism, two ways to assemble. 2 axis locks.
more
May 18, 2019 15:35
#16 Starlight by Tyler9456
Starlight has a clear plastic front to allow maximum sunlight into the solar cell and has a hole for a Velcro strap to be run through so it can be attached to a persons ankle and the front fork of a bike. The groove runs around the body and allows for it to be slid or clipped onto a bike mount or protective mount. It also has a flat back so it will rest comfortably against a persons leg.
more
May 19, 2019 6:06

Discussion

Showing last 20 comments - View All

MobiiSystems

Buyer

Sat, 18 May 2019 09:21:20 +0000
Hi Everyone

I have attached an image "concept" to the contest to better describe my comments below and provide more clear design direction.
Please excuse the terrible drawing from my touchscreen, but I hope that this will help explain it better.

Thank you.

MobiiSystems

Buyer

Sat, 18 May 2019 07:03:49 +0000
Hi Everyone

Some feedback from the team so far, hope this will help narrow down the design:

- Preferably, the top half of the housing where the solar cell is located, should be a single part that is transparent (ie: no separate window design). We may apply a spark finish to the inside of the lid to conceal the PCB and allow light to pass. We can then print on the lid to decorate.

- Looking at the mechanism for the transponder to attach to various objects. We would prefer that there is a locating groove or slot (something along these lines) that allows the transponder design to locate into a separate bracket designs in the future. This would give us much higher flexibility in terms of mounting options going forward. So imagine a bracket that holds the transponder firmly on the sides, we are thinking it may be best to employ a groove or slot on the sides of the transponder housing.

Hope this helps and thank you so much for all the designs we have received so far.

MobiiSystems

Buyer

Sat, 18 May 2019 06:57:58 +0000
Hi David.Thue, the PCB measures 34mm x 14mm
Fri, 17 May 2019 18:39:43 +0000
What is the total size of the PCB in mm?

gikam

Designer

Fri, 17 May 2019 17:06:04 +0000
Hi. did you rate my design to 0 stars, or you didn't rate it yet?
thanks

gikam

Designer

Fri, 17 May 2019 16:15:54 +0000
Thanks. I'd like to see your opinion soon (and the stars;), because I have plenty of time this week to improve it if necessary.

MobiiSystems

Buyer

Fri, 17 May 2019 16:08:10 +0000
Hi Gikam, thank you, we are reviewing this with the team shortly.

gikam

Designer

Fri, 17 May 2019 15:56:22 +0000
Hi Mobii, what about my design?

gikam

Designer

Fri, 17 May 2019 15:54:32 +0000
how to hide my designs?

MobiiSystems

Buyer

Fri, 17 May 2019 13:37:48 +0000
Hi Indjmay, you can supply the design in any format. Apologies, it is not possible for me to edit the contest information.
Fri, 17 May 2019 13:35:30 +0000
Is solidworks a must? Solidworks will open a file from many other programs.

gikam

Designer

Fri, 17 May 2019 13:25:26 +0000
what is the diameter of the pipe of the bike fork, where it will be attached?

MobiiSystems

Buyer

Fri, 17 May 2019 12:32:01 +0000
Hi Gikam, yes, that sounds right.

gikam

Designer

Fri, 17 May 2019 12:17:09 +0000
I'll make it 1.5 mm. is ok?

MobiiSystems

Buyer

Fri, 17 May 2019 12:13:44 +0000
Hi Gikam, there is restriction on the thickness. However, typically with Polycarbonate (if this is used) you would typically have a minimum wall thickness of 1.3mm

gikam

Designer

Fri, 17 May 2019 12:10:35 +0000
ok. let's see... any restrictions for the case thickness?

MobiiSystems

Buyer

Fri, 17 May 2019 11:53:05 +0000
Hi Gikam, a radius of 1mm would likely make the transponder look too "boxy". We cannot make any changes to the PCB, so the housing will need to accommodate for the PCB.

gikam

Designer

Fri, 17 May 2019 11:47:47 +0000
a radius of about 1 mm for each corner will make the case much stronger! is it possible a radius of 1 mm for the PCB corners?

MobiiSystems

Buyer

Fri, 17 May 2019 11:45:49 +0000
Hi Gilkam, there is a lot going on in the various layers with different PCB traces so that is not possible.

It would be best to make the housing design slightly larger to accommodate for rounded corners.

gikam

Designer

Fri, 17 May 2019 11:43:34 +0000
can you round a bit the corners of the PCB?

Similar Contests on Cad Crowd

Wearable Pill Storage and Managment
Hi Everyone! We are excited to see what the community comes up with! Thank you for your amazing designs. Please let me know if you have any questions. Overview: In essence, it's a bracelet that holds multiple days worth of a medication and has some of our custom hardware in it. (hardware is roughly .5" by .75", but will become smaller in the future). Please see sketches for further information Design: We would like to be able to store different types of pills in different parts of the bracelet. I've included some very rough concepts of my own, but I am by no means a designer or artist and need help figuring out the best way to do this. The CAD image is something that I quickly made for a first prototype a while ago. It is inefficient in terms of storage and very clunky - not what we are going for. An innovative design is the primary thing that we are looking for. We aren't particularly concerned at this point in time if it has fancy waves on the outside, crystals, or beveled edges. It is still important for the bracelet to be aesthetic, but the "jewelry" aspect of this can be done at a later time. It is far more important that we maximize the number of pills that it can hold without having a massive and uncomfortable bracelet. Furthermore, one concept that we are considering is to have a core bracelet that has our hardware in it and then supplementary 'bands' of the medication. We are open to other design options if you think you have something more optimal! If you only have one medication, then there either would only be one band or there can be place holder pieces/blanks that would go in the places if you were to have multiple medications. Mechanisms: Access to the pill should be fairly user friendly. I've thought about many different designs, all ranging from individual compartments with covers, one large cover that snaps over, a sliding cover, and even a spring loaded mechanism that pushes out the pills one at a time. I understand that it will be a bit more difficult to make this bracelet compact. Ideally it would hold 1 weeks worth of medication. With that being said, it would be even better if the bracelet held multiple medications, but that is more pills. Pills: The type of pill is something that we're currently working with. The larger pills are about 22mm in the greatest dimension. Most pills are circular or oval shaped. The median is approximately 15 mm. Things like birth control, heart medication, seizure medication, etc.
VestXX
Video camera mount
Hard-Hat Clipable Safety Notification System (#3)
Please help us design our next-generation hard-hat mounted safety system which provides visual and audible alerts to the user when they are approaching danger. **PROJECT FILES ARE ENCRYPTED** The project files are encrypted using 7-Zip, a free encryption and zipping application. Please message me and I will give you the password to open the project files. Once I share the password with you, please keep it private and do not share it with anyone.
insole design
We have an .obj file of a foot impression. You need to make an stl file of a solid insole which is customised for that foot. This insole stl file should be ready for 3D printing. We need you to Explain to us, step-by-step in simple words how to accomplish this (and the software tools to be used) Also note that we need to automate as many steps as possible for bulk processing. I have attached 2 files. 1. Foot impression scan file. 2. Final output expected. (The insole stl file that we want you to make is only 2/3rd length of the foot. There is a cover on this which covers the full length). So, the expected end result from you should look like the image attached, but only 2/3rd length of the foot.