And the winners are...

Thank you to all participants! 3D Technology is really excited about the solutions you created and found your feedback throughout the Challenge to be really helpful in focusing on safety and comfort. You can expect them to pick and pull the best features from all of the winners as they pursue this product. Great work GrabCADrs!

- GrabCAD

1st Place Winner
RV Donkey Calf Raise Attachment by ricky-29

RV Donkey Calf Raise Attachment

We really like this design. It not only looks good, it is well-though out and also looks strong. A body builder will take one look at this and know that it could withstand quite a bit of weight but still be comfortable enough.

Safe and durable: 1
Modern and appealing: 1
Comfort and ergonomic: 4
Cost: 2

- 3D Technology and GrabCAD

3rd Place Winner
SGCHL Donkey Calf Raise Attachment by stefan.gales-1

SGCHL Donkey Calf Raise Attachment

Nice! This design makes you want to spend all your time at the gym doing Donkey Calf Raises. We like the rugged look and that comfort was a consideration.

Safe and durable: 3
Modern and appealing: 6
Comfort and ergonomic: 2
Cost: 3

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention
Donkey Calf Raise Attachment by kris.g-6

 Donkey Calf Raise Attachment

We like the use of the clamp function. It's both simple and functional! The design also really caught our attention. We are concerned that while it is simple in construction, compared to the other entries, it would be more expensive to produce.

Safe and durable: 4
Modern and appealing: 4
Comfort and ergonomic: 3
Cost: 13

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention
Donkey Calf Razor by zc.design-1

Donkey Calf Razor

We like this compact, lightweight, and contoured design. It looks attractive but we are wondering about the comfort level for gym goers compared to the other solutions.

Safe and durable: 5
Modern and appealing: 2
Comfort and ergonomic: 12
Cost: 6

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention
XPAD - Donkey calf raise by jamie-75

XPAD - Donkey calf raise

This well thought-out design is also refreshingly different and eye-catching! Our concern is how the device isn't contoured for comfort and attaches to the barbell. Compared to other solutions it may have trouble handling large weight loads over time.

Safe and durable: 9
Modern and appealing: 3
Comfort and ergonomic: 13
Cost: 7

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention
Donkey Calf Raise Attachment "Calf Crusher Strap" by bryan.morris-1

Donkey Calf Raise Attachment "Calf Crusher Strap"

The unique locking mechanism and strap are great additions. The design thinking was explained well and we appreciate the details on all the parts used. Comfort and safety are its biggest assets.

Safe and durable: 8
Modern and appealing: 10
Comfort and ergonomic: 1
Cost: 14

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention
Donkey Calf Raise attachment by jonald.trump-1

Donkey Calf Raise attachment

Simple and easy to make are the big wins with this design. Great job! We are concerned about the c-clamps as the barbell attachment. It is more likely to slip away from the bar while the user is exercising than our other options.

Safe and durable: 11
Modern and appealing: 7
Comfort and ergonomic: 10
Cost: 5

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention
Donkeycalfraise_Version_1 by bobs3d-1

Donkeycalfraise_Version_1

Nice work! This design looks simple, flexible and comfortable. It didn't overachieve in any category, but did a nice job of hitting all our concerns.

Safe and durable: 7
Modern and appealing: 9
Comfort and ergonomic: 7
Cost: 10

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention
Quick Release Donkey Calf Raise: Slim version by demonic.lord-1

Quick Release Donkey Calf Raise: Slim version

Simplicity, performance, and even sustainability were part of this design. Nicely done! It fell short in design and didn't feel modern.

Safe and durable: 6
Modern and appealing: 13
Comfort and ergonomic: 11
Cost: 4

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention
DONKEYCALFRAISE: Concept 1 by jonathan.brazeau-3

DONKEYCALFRAISE: Concept 1

A truly unique design. It comes across as both sporty and sturdy but the overall design isn't as simple and modern as we'd like. There are many parts which causes concerns for cost. A great idea that could be refined in the future to further optimize comfort and appeal.

Safe and durable: 13
Modern and appealing: 11
Comfort and ergonomic: 6
Cost: 12

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention
Saddle Shaped Attachment by stoyan.shumkarov-1

Saddle Shaped Attachment

We like the minimalistic saddle shape used in this design. Our concerns are around the attaching device and its safety.

Safe and durable: 14
Modern and appealing: 8
Comfort and ergonomic: 14
Cost: 9

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention

We admire the rugged design and think the addition of springs is interesting, but the look isn't modern enough and we are a bit worried about safety of the attachment.

Safe and durable: 15
Modern and appealing: 12
Comfort and ergonomic: 9
Cost: 11

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention
Stand alone donkey calf raise XL attachment by joe.valverde-1

Stand alone donkey calf raise XL attachment

Talk about a different approach! We love the creativity and effort From Joe. Our biggest concern is the extra cost a stand alone option creates and we are worried about the comfort of the user.

Safe and durable: 10
Modern and appealing: 14
Comfort and ergonomic: 8
Cost: 15

- 3D Technology and GrabCAD

Donkey Calf Raise Attachment Challenge Honorable Mention
Donkey calf raise by dr1v3r

Donkey calf raise

This is a nice effort that should be recognized. We don't feel the attachment would be safe or comfortable compared to the others. You really don't want the device to slide during use. We are a bit worried about cost to manufacture, but it is simple.

Safe and durable: 12
Modern and appealing: 15
Comfort and ergonomic: 15
Cost: 8

- 3D Technology and GrabCAD
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