Old 01-14-2021, 09:22 AM
  #8  
Gymnast2
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Join Date: Feb 2020
Location: Copenhagen
Posts: 52
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I found this video about the class 51 machine. I think it is a flatbed version of the class 21. I guess, that it have got the same shuttle hook system as the class 21 and perhaps the later series 1000 and 2000 machines - do you know that?

But this video states in text, that the machine is able to sew Tex 90 thread without issue.

https://youtu.be/2kAp8OxHjV8
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