This is a customizable reading block toy for young children. The design was based of of the Montessori Phonetic Reading Blocks. The design is customizable for any letter combination as well as an block amount. Can be updated with more or different blocks as the child learns more words. Print all parts and simply assemble toy by placing blocks on the bolt and screwing on the end nut.

Toy would cost about $3.75 to print for the default setting, but may vary based on customization. Cost of commerically available toy is $24. 

https://www.etsy.com/listing/86225492/the-original-montessori-phonetic-reading?gpla=1&gao=1&&utm_source=google&utm_medium=cpc&utm_campaign=shopping_us_christmas_Toys_and_Games&utm_custom1=6ad91258-a91e-42fb-b6f7-552ee8eeb70a&utm_content=go_1707294370_69268674369_331635229674_pla-314535279060_c__86225492&gclid=Cj0KCQjwl8XtBRDAARIsAKfwtxDk16WWPA8XYgRNxhOLZcQlu-jfJPPwqgPxTvUP5dIRr2ukbQrwBqIaAmaiEALw_wcB

Bolt and Nut code adapted from Nut_Job.scad from mike_mattala.

Features can be customized within the Thingiverse customizer at https://www.thingiverse.com/thing:3934303