The still is for recovering the alcohol. Making extracts is more about technique- start with good product, keep it VERY cold during wash, filter, and use the still to reclaim the solvent. Torr Kitchen on Youtube has good info on homemade recovery systems. https://torrkitchen.com/ is the site.
The link you posted for the still shows the basic items needed to reclaim solvent. I would take a look at some more videos for better ideas.