Floating Seed Sprouter

in Product Design held by stavro
Contest Ended, Winner(s) have been selected.
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The device has to be no more than 2.5" in diameter - it needs to fit in a cup.

It will be 3D printed, and then plastic mold manufactured.

The device needs to support 100g of weight, not tip over, and stay afloat.

Specifically, the 100g weight will be no larger with a 2" diameter, and can be as small as .25" in diameter. I envision 3 adjustable, horizontal poles that are attached in the inside walls of the device, that can move vertically up/down, depending on the weight of the seed, and in/out, depending on the size of the seed.

Lastly, there needs to be a hole that is no smaller than .5 inches, at the bottom of the device so water can get through.

Ideally, I would like to see buoyancy / fluid simulations of this in action, to ensure it meets the above criteria. Any other questions, please let me know.
I would like the model in STL or OBJ format.
  1. Any program.
Additional Information
I did not make this clear, per my initial description. I would need a .5" diameter hole at the bottom to float device, not only for the water to get through, but also for the roots of the seed to get through, while it continues to sprout. Please see added attachments.

Additionally, the way that I envisioned the seed would stay at the appropriate level, is by having 3 adjustable horizontal poles in the inside wall of the device. Please see image attached, and also see my other project here on cadcrowd: Simple extendable / telescoping mini pole, for a reference of these horizontal poles.

I have received many great designs. I am extending this project for one more week to reply to a few more designers before I make my decision. Thank you all very much for your talent and effort on this. It is very much appreciated.


= Buyer's Rating
1st Winner
#48 Float adjust with thread - by Adriano Ordoz Barissa by Adriano Ordoz Barissa
Download Files
Mar 28, 2017 16:56
2nd Winner
#53 New Seed Floating Sprouter by sherifelsheikh
Mar 29, 2017 10:30
#29 Floating Seed Sprouter by markol
Mar 23, 2017 11:28
#30 Adjustable Floating Seed Sprouter by sldraftingdesign
Mar 23, 2017 15:13
#31 Floating Seed Sprouter by Stelios
Mar 23, 2017 19:47
#32 Float with height adjustment by Adriano Ordoz Barissa
Download Files
Mar 24, 2017 15:58
#33 Sprouter by Mahbub
Mar 25, 2017 6:14
#34 Floating Seed Sprouter by Stella X
Mar 25, 2017 11:31
#35 The Germinator V1 by Michael Jonquière
Mar 25, 2017 17:45
#37 Floating Seed Sprouter2 by Stelios
Mar 25, 2017 20:17
#39 Floating Seed Sprouter3 by Stelios
Mar 26, 2017 0:42
#40 Sprouter_00 by Pop Horea
Mar 26, 2017 6:26
#41 Sprouter_2,5inch by Pop Horea
Mar 26, 2017 7:44
#44 Floating Seed Sprouter V3 by N-Design
Mar 27, 2017 18:25
#45 Floating Seed Sprouter V4 by N-Design
Mar 27, 2017 19:59
#50 SFLOUTER by unocuatro
Mar 29, 2017 4:43
#54 Floating Seed Sprouter by A-Designs
Mar 29, 2017 11:30
#15 Sprouter and seed assembly 2 by Devondesigner
Mar 21, 2017 10:01
#3 Floating Seed Sprouter V1 by N-Design
Mar 20, 2017 2:43
#4 Floating Seed Sprouter by Chamal Jayasinghe
Download Files
Mar 20, 2017 7:53
#5 Sprouter de semente flutuante AD01 by Adriano Ordoz Barissa
Download Files
Mar 20, 2017 9:21
#6 Float produced by blowing process by Adriano Ordoz Barissa
Mar 20, 2017 12:03
#7 Floating Seed Sprouter by Adam B.
Mar 20, 2017 16:12
#8 Sprouter and Seed Assembly by Devondesigner
Mar 20, 2017 16:16
Mar 20, 2017 18:04
#11 Floating Seed Sprouter by kabbo
Mar 20, 2017 18:46
#12 Floating Seed Sprouter by kabbo
Mar 20, 2017 19:16
#13 Floating Seed Sprouter V2 by N-Design
Mar 20, 2017 19:50
#14 Floating Seed Holder by Mike Mansour
Mar 21, 2017 0:10
#1 Concept by handsketcher
Mar 19, 2017 13:35
#16 Float with drawer type regulation by Adriano Ordoz Barissa
Mar 21, 2017 11:24
#17 Floating Seed Sprouter AD04 by Adriano Ordoz Barissa
Mar 21, 2017 11:43
#18 Floating Seed Sprouter AD05 by Adriano Ordoz Barissa
Mar 21, 2017 12:10
#19 Floating Seed Sprouter by Vigneshwaran V
Mar 21, 2017 13:17
#20 Sprouter Dish Complete by Chamal Jayasinghe
Mar 21, 2017 14:03
#22 Floating Seed Sprouter AD06 by Adriano Ordoz Barissa
Mar 21, 2017 18:15
#23 Floating Seed Sprouter by kabbo
Mar 21, 2017 18:34




Tue, 04 Apr 2017 12:28:18 +0000
Looking forward to seeing the winning design!
Fri, 24 Mar 2017 21:44:01 +0000
Hello there Stavro,

You mentioned in your description that the seed size could vary from ~2" to ~0.25", and that you would like the height of the seed support adjustable. I would assume that this is because there is some ideal water level for a seed to sprout (i.e. 1/4 submerged or 1/2 submerged?). Could you provide some info on where you would like the water line to sit? I would like to see if I can make a passive design (i.e. one piece with no moving parts) to accommodate the range of seed sizes and weights.

Also I would suggest that asking for fluid simulations is probably unnecessary. Some static calculations should certainly suffice to show that the design will be stable and support the required weight.




Fri, 24 Mar 2017 17:37:59 +0000
Buyer, can we get some "star" feedback or anything from you regarding our designs?



Thu, 23 Mar 2017 15:18:18 +0000
Submitted! Thanks for the fun contest!



Thu, 23 Mar 2017 03:09:11 +0000
People that don't show their design typically are copying someone elses.
Sun, 19 Mar 2017 19:08:25 +0000
Can you please kindly further describe below

" I envision 3 adjustable, horizontal poles that are attached in the inside walls of the device, that can move vertically up/down, depending on the weight of the seed, and in/out, depending on the size of the seed. "

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