Unique, yet Simple, Card Holder Tray (Children's Board Game)

in 3D Modeling Design held by Shahin (PF Shaggy)
Contest Ended, Winner(s) have been selected.
  • Open
  • Choosing Finalist
  • Ended
Friends, I place this project in your capable hands... please help me move the cause forward! I'm a dad, and one-person start-up, using my retirement savings to develop a children's board game. (There's a real lack of truly funny reading games for kids aged 5-8 years. Most are really boring. My intention is to introduce a new board game at retail that fills the gap and gets younger kids laughing and reading.)

Develop the production-ready Mini Card Holder Tray which will be used in the game.

Deliverables (hope I got these right)...
- A CAD and STL file which can be (a) used to 3D print a prototype/sample, (b) provided to a manufacturer for development of a mold and mass production of tray
- A PDF showing the tray from 2-3 perspectives

This game includes miniature playing cards, and they are held in a card holder tray which is essential to game play. Play starts as the card tray slides over (on top of the table or playing surface) to Player 1. He draws his cards. After playing the cards, he pushes/slides the tray to Player 2. She'll take her turn, and slide the tray to the next player. Turns continue until the game ends.

So the tray will fit in the game box, its size cannot exceed 170mm x 100mm x 35mm.

To ensure proper game play, the card slots (where the cards fit) must be as follows…
- Left Side -- a front and rear slot to hold cards
- Middle -- a single front slot to hold cards
- Right Side -- a front and rear slot to hold cards

Each tray opening/slot must be able to hold at least (35) 44 x 67mm mini playing cards... that's about 14mm deep. (Please also provide the appropriate extra space in the width of the card slots so the cards can be easily inserted and pulled out.)

See attached image of my temporary tray (01_TempTray.jpg) that I cut up crudely from an ice cube mold, for a visual of the number of tray slots, and their orientation.

I've seen two types of trays that could work well. See attached examples in PDF (02_TwoTrayTypes.jpg)...
- Tray that lies flat (on its back)
- Tray that holds cards somewhat upright (at an angle for viewing)

Or maybe a hybrid of the two tray types?

In terms of design, something that's simple, contemporary and visually pleasing (like Apple® products), would be great.

I've attached an earlier mock up of the game's box cover, in case that can stimulate ideas also. (03_BoxCover_InProgress.jpg)
The design must fit the following criteria:

1. Unique, yet simple, one-piece design suitable for injection molded manufacturing, and to be made from a child-safe plastic used in games

2. Easy, and inexpensive, to manufacture

3. The weight as light as possible to keep down shipping cost of game, yet strong enough to withstand use/play by kids 5-8 years old

4. Rounded corners for safety of young children, and for a pleasing aesthetic

5. No "bumps" or elements sticking out of top or bottom of card tray, as they may puncture the wall of the game box in storage or during shipping. (The tray sides can vary in shape though.)

6. A light blue-colored tray (i.e., CMYK - C:31%, M:15%, Y:4%, K:1%)

7. Tray should be slide-able from one player to the next. It shouldn't tip over, and shouldn't scratch a table top surface

8. Players should be able to easily draw cards from the tray

9. Use exact number of tray openings/slots specified, and in same orientation/sequence as specified

10. Tray must not be larger than the provided dimensions to fit in the game box

11. Uniform wall thickness to ensure proper mold filling in manufacturing process

12. Designed with the appropriate "draft" so tray surface isn't damaged during separation from mold surface

13. Designed in metric system
Don't Wants:
No complicated designs (i.e., using clamping mechanisms to hold cards, levers for dealing cards, etc.)
  1. SolidWorks (Current Version)
  2. AutoCAD (Appropriate Current Version)
Additional Information
IMPORTANT UPDATE... Thanks REDA! REDA asked me a few questions that made me realize I made a mistake. Please see the reference image (04_Flat Tray_Slots_Not_Possible.jpg) -- it provides an explanation of why a completely flat tray won't fit all the card slots I require. (We'll need to have the cards lying at an angle in the tray most likely, as with SLdraftingdesign #3.)
SIZE OF TRAY... Everyone, the spec I gave for the tray size was the Maximum. (As long as the cards fit, the size can be smaller than that. So for example, it doesn't have to be the full 170mm across.) Maybe that saves on manufacturing cost and lowers the shipping weight by a little? Not sure... but was thinking of that a little.
VISUALIZING SUBMISSIONS... All, if it's not too much trouble for future submissions, PDF's or Image Files (with a front, rear, and upside down perspective) help me quickly visualize your designs. Thx!
CLARIFICATION... Team, please note that all cards should be facing forward in your tray designs. It may not have been perfectly clear from my original images/notes.
EXTENDING CONTEST... Hi guys, I'm extending the contest 3 days. My trip has delayed me, and this will allow me to get back to some of you who had questions. Thanks for understanding!


= Buyer's Rating
1st Winner
#34 card holder by Rahul Sharma (RS)
Download Files
Jul 11, 2015 4:47
2nd Winner
#20 Plateau3 by REDA
Jun 28, 2015 16:15
#11 Updated Tray by sldraftingdesign
Download Files
Jun 26, 2015 20:55
Jun 26, 2015 17:38
#8 Toy card holder rect by rprithvirajan
Jun 25, 2015 15:12
#32 card holder tray by fadli
Jul 8, 2015 6:50
#33 card holder tray 2 by fadli
Jul 8, 2015 7:08
#4 Card Tray (without sticker) by sldraftingdesign
Download Files
Jun 24, 2015 20:35
#3 Card Tray by sldraftingdesign
Download Files
Jun 24, 2015 17:10
#18 version 1.1 hybrid design by Rahul Sharma (RS)
Jun 28, 2015 15:18
#31 Card Holder Tray (Children's Board Game) by EJB CAD SOLUTIONS
Jul 8, 2015 1:52
#30 CARD HOLDER by dhinesh
Jul 7, 2015 17:13
#25 Card holder tray by Joju Zacharias
Jul 1, 2015 9:18
#22 CardTrayCDO by OwensChristopher
Jun 29, 2015 16:28
#21 version 1.2 by Rahul Sharma (RS)
Jun 28, 2015 21:50
#1 Card holder tray trapezium sides by rprithvirajan
Jun 24, 2015 15:46
#17 Card Holder minimum material by rprithvirajan
Jun 28, 2015 3:16
#16 Card Holder minimum material by rprithvirajan
Jun 28, 2015 3:13
#14 Card Holder by Thomson_Nguyen
Jun 27, 2015 13:07
#13 Card Holder & Mold by Leve
Jun 27, 2015 10:09
#6 Tray Card Box by feri saputra
Jun 25, 2015 4:19
#5 CardTrayCDO by OwensChristopher
Jun 24, 2015 21:17
#2 Card holder Trapezium-cir by rprithvirajan
Jun 24, 2015 16:11


Showing last 20 comments - View All



Tue, 14 Jul 2015 00:59:08 +0000
Rahul , Shahin and Ridwan Thank you

Ridwan Sept


Mon, 13 Jul 2015 18:27:03 +0000
Congrats to Rahul and Reda :)
Sat, 11 Jul 2015 05:33:10 +0000
Reda, thanks for your kind words also. You also did a lot of extra work that was very much appreciated.
Sat, 11 Jul 2015 05:32:17 +0000
Thanks to you Rahul. I appreciate that very much. You went beyond all my requests and handled all revisions perfectly. I am excited to have a finished tray.
Sat, 11 Jul 2015 05:29:40 +0000
thanks Shahin and Reda
it is been great to work with you Shahin. And you are doing great work for children, i wish you success and hope to find you in future to work together.
Thanks once again



Sat, 11 Jul 2015 02:47:00 +0000
Shahin thank you I'm glad you find the design you want
and thank you for your follow :) I wish you success

Congrats Rahul ;)

Thu, 09 Jul 2015 00:12:24 +0000
Designers & friends,

I've selected the winner for the contest. It was quite a difficult choice for me. There were so many talented designs... from Rahul to Reda and MANY others. Thank you all sincerely for your advice, your designs, and helping me get closer to manufacturing this game for the children. Your presence makes this site amazing. And I am truly thankful for you putting yourselves out there 110% with your very creative, professional designs.

I will be awarding this contest to Rahul. Thank you Rahul! (Rahul's design works best with my game and how to play it. The way the cards lay down flat, and how the mystery cards stand up in back. With so many talented entries that delivered on the requirements, that factor tipped the scales for me.) Reda, your tray was a very close second place. Thanks for your great design as well! And then, wow, there were many other contenders.

As per the site's FAQ, I'm going to leave the contest open for the following days while Rahul and I work through the final revisions. Then I'll assign him the winner title.

With much respect guys,

Shahin (P.F. Shaggy)
Thu, 09 Jul 2015 00:09:14 +0000
That's really cool. Thanks OwensChristopher!



Wed, 08 Jul 2015 21:20:23 +0000
Happy I could submit my design to this contest! It really gave me a chance to try out Onshape CAD! Plus I got to make a few suggestions to Onshape! Thanks for the opportunity!

Sat, 04 Jul 2015 18:38:44 +0000
EXTENDING CONTEST... Hi guys, I'm extending the contest 3 days. My trip has delayed me, and this will allow me to get back to some of you who had questions. Thanks for understanding!
Fri, 03 Jul 2015 01:04:26 +0000
Hello everyone... thanks for the most recent submissions and messages (public and private). I am still on a trip and will have poor internet access until Saturday. (I'll be back then and able to communicate more.)

As I learn more from you (the experts), and think more about this contest, I believe the main criteria I will use in my final decision is:
- A unique design that is a little crazy/unusual, yet still practical to use
- Inexpensive to manufacture (tooling & per unit cost)
- As light as possible to decrease cost when shipping
- Strong enough to handle play with kids

Thanks again,
Thu, 02 Jul 2015 05:06:36 +0000
Thanks Ridwan, there was a tray design submitted where the front 3 card slots faced forward (toward the player), and the back two card slots faced in the opposite direction (away from the player). So I left that comment to make sure everyone understood that all card slots should have the cards facing forward, toward the player. Hope that makes sense.

Ridwan Sept


Wed, 01 Jul 2015 15:15:57 +0000
What the meaning of the card must be face front? I see the images attached the 2 cards in the back are facing back side.

Tue, 30 Jun 2015 06:45:26 +0000
Hi guys, I'm travelling for the next couple of days, so may not be able to respond as fast. But I just connected... thanks very much for the latest designs posted!



Mon, 29 Jun 2015 18:51:51 +0000
Thank you Ridwan ;)

Ridwan Sept


Mon, 29 Jun 2015 16:49:45 +0000
great design and solution Reda..good luck.. I'm with you :)



Sun, 28 Jun 2015 21:26:26 +0000
Merci Shahin :)
Sun, 28 Jun 2015 16:55:21 +0000
REDA, thank you for your new design also. I appreciate it! It looks a lot lighter in weight.
Sun, 28 Jun 2015 16:46:09 +0000
rahul sharma, thank you for the great and different new design. It looks like it will weigh very little. I just sent you a message to see if you can make a few adjustments to it. I appreciate it.
Sat, 27 Jun 2015 21:17:18 +0000
And I just want to write again... I'm really thankful to you guys for every idea received. Without your talents I wouldn't be able to finish this game for kids and their parents to enjoy. thanks...

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