IKEA, MDF drawer repair

https://slrpnk.net/post/485056

IKEA, MDF drawer repair - SLRPNK

This is DIY repair, not project. Had some nasty MDF damage. Instead of looking for replacement parts ar sending table to indefinite storage, decided to fix it. I hope this will be useful to someone.

Is Chipboard the same as MDF? I thought MDF is always finer.
@dillekant Not sure, but there is also LDF and particle boards. In my place we call them all chipboards and it's good enough in 9 times out of 10.
If someone has good guide, I'll be happy to have it.
ah, it seems LDF is chipboard / particleboard ? But then some people call it MDC? I didn't realise the nomenclature was this mixed up.