Chromosome Model with Magnets for Simulating Crossover, High School Biology Teaching Aid

This is a chromosome model that simulates crossover, and it can be magnetically attached to a blackboard for student demonstration.

I embedded a 10mm diameter and 1.5mm thick magnet in each piece (because my magnets are actually slightly smaller than 10mm, I left the hole at exactly 10mm. If your magnets are exactly 10mm or other sizes, you can modify the negative part yourself). A pause is set before the last two layers, you need to manually insert the magnets and then click "continue printing".

If you don't need to embed the magnets inside, you can also cut off the top 0.4mm, so the magnets will be exposed.

If embedding magnets, remember to pay attention to the magnetic poles and avoid reversing them~