New hex dumbbells Blind

in 3D Modeling Design held by robo1
Contest Ended, Winner(s) have been selected.
Design a range of hexagon shaped dumbbells with an extra cut out for an extra way to grip the dumbbells with two hands.

The dumbbell range will be made from cast iron, 7.2 density. A range of six weights. 2.5, 5, 10, 15, 20, 25kg.

Satin/matte black colour only. The logo debossed into the surface by around 2mm.

The smaller weights with a slightly smaller handle length, becoming larger throughout the range.

The logo and weight number identification to go wherever there is enough space to have as large as possible.

The weights need to be accurate, within a few grams of the designated weight.

The main handle diameter is 35mm, tapering down either side to 28mm and rounded back in as it joins the main weight either side.

The edges need to be rounded off so they are smooth to grip all around.

The cut out grip area ideally needs to be 40mm in height but for the smallest weights thus could be slightly smaller.
I require rendered 3d images, all drawings and step files for manufacturing.
Keep bar diameter as described above. Black colour only.
Additional Information
Font for lettering is HK Nova

Knurled grip on handles with three clear bands on each handle in the central area of the handle

We also require a steel rack designed for the dumbbells to be stacked on in pairs. This needs to be made from either common square, triangular, circular or rectangular bar so its easy to weld together. It needs to be secure and floor standing.


1st Winner
#36 Tribar Hex Dumbbells by @ridwan.sept by Ridwan Sept
Tribar Hex Dumbbells by @ridwan.sept
Nov 18, 2020 14:16
Nov 17, 2020 20:47
#19 1st Model 25Kg Hexagonal Dumbbells by Chaniago
Hi ... Robo
Here is attached my first design for "Hexagonal Dumbbells" weighing 25KG. I have also attached the pdf and cad files so that you can review my design in more detail. I will wait for your suggestions and feedback before I make designs for other weights. Hopefully useful and can help you
Thank you
Nov 17, 2020 10:19
#20 2.5 KG Dumbbell Sample by Carnalious Snal
Hello, this is 2.5 KG dumbbell sample. I will send rest of the designs. I'm almost done. I have also prepared the rack system. I will upload all files together very soon.
Thank you.
Nov 17, 2020 15:24
#21 New Hex Dumbbells | Blueprint & Rendering_01 by biazwilosojati
Dear Owner Project;
Thank you for current opportunity job, therefore it would be well opportunity for us to become part of this project. I have uploaded any file inside there, here any file contains:
- Source File, included Max File, Obj, & FBX
- Render Image
- Blueprint PDF
I used one type dimension only, for 10Kg of Hex Dumbbells. But for any different weight, are same dimension cause I don't know what clearly information for any weight of Hex Dumbbells. But, I have uploaded Mockup Image to clarified about every Hex Dumbbells have different weight. As well there isn't rack inside the source file, cause I noticed in the comment coloum that you will select the finalist immediately. Then I submit it early, but if possible I will re-upload again along with the rack.
Thank you for your opportunity and attention, I look forward to hearing from you.
Best regards,
Bias Wilosojati
Nov 17, 2020 16:31
#22 Dumbbell Set Rack by stratacad
Concept for Dumb Bell Rack
Nov 17, 2020 16:37
#23 New hex dumbbells - all sizes by majd kassar
Hi Robo
this is my final design for all sizes, I have fixed some issues and made it more accurate.
I will send the rack design as soon as possible
tell me if there is any modification required
Nov 17, 2020 17:08
#24 Dumbell 25 kg by Dimitris Sxizas
Just the model for 25 kg. Rest of the sizes are similar and can be auto generated.
Nov 17, 2020 18:48
#25 Dumbbell Set Rack by stratacad
Please see attachments for rack submittal.
Thank you for your consideration for the rack submittal
Nov 17, 2020 20:09
#26 Tribar Hex Dumbbells V2 by @ridwan.sept by Ridwan Sept
"Tribar Hex Dumbbells V2" by @ridwan.sept
More Sleek, More Comfy, More Ergonomic & Modern Design not plain and have a strength lines.
Nov 17, 2020 20:13
#17 Dumbbell Set Details and Rendering by stratacad
PDF Contains:
- Concept Renderings
- Details per each size
- Tolerance used ( +,- 1.5 grams) All mass properties calculations taken with knurling cuts included in model.
- All features can be changed in minutes with equation tweaking.
- Can provide model with knurl cut outs in .igs format
Question: Will the rack be another contest, or should I send as a separate attachment?
Thank You for your consideration
Nov 17, 2020 8:34
#29 Hexa by GPA by GilarPanduA
Simple, Functional, and good accuracy
Nov 18, 2020 5:16
#30 Hex Dumbell Project All Items by Carnalious Snal
Hello, this is my finished design. I've included all items you mentioned. If you need any modification please feel free to contact me.
Thank you.
Nov 18, 2020 5:17
#32 Dumbbells by AnilkumarHC84
I have added 10 Kg and 15 Kg designs only , I started working all but by seeing the comments I decided to stop working further.if interested let me know I will do further ,
I am not into contest , I just need work let me know I can work with you for cost as low as possible
Thanks and regards
Anil Kumar H C
Nov 18, 2020 7:33
#16 New hex dumbbells by Infinite 7_∞ Designs
Please check the Attachment file
Thank you
Nov 17, 2020 8:13
#15 Hexagonal Dumbbells by MKeikhosrvy
Step Models are attached. drawing will be added after approval.
rendered image also attached.
Nov 16, 2020 22:21
#13 Hex Dumbbell 2.5kg Sample Design by Design Territory
Adding all detailed files for a 2.5kg+5g (Proof Attached) Sample design. Will complete the rest designs soon.
Nov 16, 2020 17:46
#12 Hex Dumbbell Sample Design 10Kg by ahmadnazree
Hi CH,
Please find the attached design for your review. Thank you very much.
Nov 16, 2020 11:45
#9 Hex Dumbbells Revision & updated model by Pilar
Hello sir! i updated my design hope you see it and like it, here i attach a model some screenshoots for the detail and
Nov 15, 2020 22:15
#8 2.5 Kg Dumbell by kyler
Here is my Design proposal for your Hex Dumbbells with 2D drawing. Once i have the Logo i can submit the remaining models.
Nov 15, 2020 20:07
#6 hex dumbbells by atekd
Hex Dumbbells. A zip file contains (6 files and 4 render view with rack). As per specification the model is created with the rack.
Nov 15, 2020 17:54
#35 Hexagon shaped dumbbells by hamishk
I Have only Drawn up the 2.5Kg Dumbbell. Design Cast Iron. should I be successful, the rest can be quickly drawn.
Nov 18, 2020 11:45
#1 Tribar Hex Dumbbells 10 KG by @Ridwan.Sept by Ridwan Sept
Tribar Hex Dumbbells 10 KG by @Ridwan.Sept
Nov 14, 2020 12:51
#11 Hex Dumbell 2.5kg by venkateshg
This is My first model of 2.5kg Dumbbell Please give me feedback if any requirements
Nov 16, 2020 4:48
#7 hex dumbbells by sherifelsheikh
Nov 15, 2020 18:58
#5 Hex Dumbbells by Pilar
hello there! here I attach 3 models and screenshots for you to see, I'm waiting for your logo and comments
Nov 15, 2020 16:13
#34 Tribar Hex Dumbbells by @ridwan.sept by Ridwan Sept
Tribar Hex Dumbbells by @ridwan.sept
Nov 18, 2020 10:49
#10 Tribar Hex Dumbbells by @Ridwan.Sept by Ridwan Sept
Tribar Hex Dumbbells by @Ridwan.Sept
Nov 15, 2020 22:28
#4 Dumbles 2.5KG by SrinivasDesign
I have attached the Hexagonal dumbles for 2.5KG.
Kindly share the Logo, so that I could share the final updates with other specified weights
Nov 15, 2020 4:47
#3 New hex dumbbells - 10KG by majd kassar
hi Mr.robo1
this is my first model, give me feedback if there is any required modification
thank you in advance
Nov 15, 2020 0:13
#2 Tribar Hex Dumbbells by @Ridwan.Sept by Ridwan Sept
Tribar Hex Dumbbells by @Ridwan.Sept
Nov 14, 2020 21:25


Showing last 20 comments - View All
Mon, 16 Nov 2020 18:48:52 +0000
Hi Robo1, wondering what the logo is as with everyone else but also how you propose to manufacture the dumbells? From a mold?

Design Territory


Mon, 16 Nov 2020 14:22:14 +0000
Work is in progress. Please send the logo.



Mon, 16 Nov 2020 11:41:33 +0000
We will be selecting the winner for this contest tomorrow. Thanks



Mon, 16 Nov 2020 11:36:31 +0000
Please sent the logo , or please add logo in attachments so that everyone can get your logo
Mon, 16 Nov 2020 10:18:31 +0000
can you give me the logo?
thank you
Mon, 16 Nov 2020 03:50:54 +0000
hi, good day can you send me the logo, please.

Carnalious Snal


Sun, 15 Nov 2020 17:10:20 +0000
Hello, can you please send me the logo. I will upload my design after adding your logo.
Sun, 15 Nov 2020 15:17:04 +0000
where is the logo please?
Sun, 15 Nov 2020 14:29:21 +0000
Please attach the logo !!
Sun, 15 Nov 2020 14:06:50 +0000
logo pls



Sun, 15 Nov 2020 14:04:49 +0000
Please Add Logo in Attachment
Sun, 15 Nov 2020 13:37:51 +0000
hello @robo1 can i get a logo please.
Sun, 15 Nov 2020 10:58:16 +0000
Hello @robo1,
Can you please send me the logo
Sun, 15 Nov 2020 07:47:39 +0000

Could you please share the logo with me.

Thanks in advance,
Sun, 15 Nov 2020 06:29:18 +0000
Please Send the logo.
Sun, 15 Nov 2020 06:22:42 +0000
hey buyer please send logo
Sun, 15 Nov 2020 00:08:53 +0000
May i have the logo please...thank you
Sat, 14 Nov 2020 23:05:11 +0000

Please send logo also.

Thank you !



Sat, 14 Nov 2020 22:08:18 +0000
Hi Mahmoudh, I will send the logo now



Sat, 14 Nov 2020 22:04:48 +0000
I need the logo from you

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