Bolt/Screw Separation Device | Sort by Size
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Bill of Materials
Description
Video About the Designing process, the functionality the Assembly and more!
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Motorized Bolt/Screw sorting machine for M2-M6 Bolts.
This Machine Sorts your bolts by their size.
For more info watch the Video on Top
Supported Screw/Bolts Sizes:
- M2
- M3
- M4
- M5
- M6
Max Length: 60mm
Important! Bolts that are too short for their size will cause problems as their dont self align then in the modules.
Example: M6x8 is too short but M6x12 works
Nuts are not supported.
Tested Screw/Bolt Types:

Cylinder head screws
They work great as the device was designed specifically for them
Countersunk head screws
They get lifted standing alot and get stuck on the ramp quite often. They require quite some manual error fixing.
Its probably easier to sort them by hand.
hex screws/bolts
They Work but sometimes get stuck in the printing lines during the lifting process. This stops the machine and you need to push the bolt manually to continue. They sometimes have problems rolling to the next wall because of their hex head shape.
Part list:
1x Hopper
1x Lifter
1x Motorblock
1x Rahmen
1x TrayFrame
1x Separator
2x Tray
1x RotaryLockKey
3x RotaryLock
1x MotorGear
1x LiftergearL
1x LiftergearR
2x ConnectorShort
1x Clamp
1x ModulM3 (Gap size 4.3mm)
1x ModulM4 (Gap size 5.8mm)
1x ModulM5 (Gap size 7.3mm)
1x ModulM6 (Gap size 8.8mm)
More Modules from 2mm to 7mm in 0.2mm steps available on my PATREON
PRINTING
i printed all parts with 0.2mm and a 0.4mm nozzle.
The only parts that require Support are the Lifter

and the Body (worked for me without support as well but its cleaner with support)

Motor
I chose the LA001 Motor Makerworld offers. You can purchase it directly from here.
but you can buy the Motor from other sources as well.
You can plug in into a powerbank or any other 5V usb slot.
2 M3x25 Screws are required to screw the motor to the Motorblock
Assembly
There are Assembly instructions at the end of the Youtube video on Top
HOW TO USE
You Pour your bolts into the hopper (only supported types and sizes)
Then you place in the Modul of the biggest bolts you have
You plug in the motor to a Powerbank and let the device run until the hopper is empty.
one tray should contain bolts that are smaller than the Modul size and the other tray should contain only the size of the modul.
As the device is not 100% accurate there might be some bolts in that tray. (more about the accuracy later). Now you can either remove the few wrongly sorted bolts by hand or sort the bolts from that tray again.
Empty the tray with the Modul bolts.
After that you switch the modul to the next size and pour the bolts from the other tray back in the hopper and repeate the whole process until all bolts are sorted.
!IMPORTANT! I do not reccomend to leave the device alone when running. stay in the same room in case of jams or other failures happen
ACCURACY
I did many tests and the average error rate is about 2%. This may vary for you.
My tests contained the following screws of random sizes:
- 25 M2 screws
- 25 M3 screws
- 25 M4 screws
- 25 M5 screws
- 25 M6 screws
Support:
You can support me by Boosting the Model, Subscribing to my Youtube Channel or
FAQ:
- What happens with bolts bigger than M6?
- They will not be picked up by the lifter and remain in the Hopper
- Why the Standard digital file license?
- This is a requirement to join the exclusive model program from makerworld
SORT BOLTS BY LENGTH:
You might be interested in These 2 Devices that sort screws by Length (a More modulare one will be next)
https://makerworld.com/en/models/747968#profileId-681246
https://makerworld.com/en/models/765163#profileId-700314
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.


















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