Use these bolts & nuts for the take apart toys listed below:
The bolts could optional be reinforced, in case of poor layer bounding. A steel bolt M3x30 and nut will certainly strengthening the printed bolt.
The screw driver set is also open source and could be downloaded here also. When using one handle for all bits, D6L6 magnets could be inserted during printing.
There is a tools-connected stl part, for easy printing.
After a short parameter study, decided to make the inside of the nut_v1 a little larger for dealing with FDM issue's printing an inner circle.
Although care is been taken, getting all dimension right, it's challenging to print these bolts & nuts.
I do get better results printing these in ABS then PLA somehow.
Like to print toys for my son and try different things.
If you want to support my uploads, please consider to buy the designs. This will help me to create, test and test again new models.