https://www.facebook.com/groups/1794856020751839/posts/4430134563890625
Saving for the commentary on the Brooksaw Antiques platen recovery using 3-D printing.
https://www.facebook.com/groups/1794856020751839/posts/4430134563890625
Saving for the commentary on the Brooksaw Antiques platen recovery using 3-D printing.
For 7 years Olympia produced the SM3/4, to the tune of 1.4 million copies. , while the SM9 was in production for 15 years and over 4.6 million copies. The SM7 was in production for 3 years, with a little over 682,000 units produced.
Double check these numbers before using, but...
https://www.facebook.com/groups/721704878218903/posts/3070114496711251
https://www.reddit.com/r/typewriters/comments/1kjam1u/ribbon_material_makes_a_big_difference/
Cotton versus nylon on an Olympia SM9

https://www.reddit.com/r/typewriters/comments/1lhemm3/olympia_sm9_1973_model_platen_and_feed_roller/
Notes for platen removal on an Olympia SM9.
Olympia Typewriter Spacers 3D printed with TPU Filament by [[Subham Kumar]]
Olympia SM3 & 9 Comparison by [[Joe Van Cleave]]