- Location
- Leicestershire
Hello Group,
Can you help.
I need to understand what a 3PR & 4PR looks like and how I can make one up from other chairs. They are shown on a B switch diagram by Exactoscale. I am making a B6 in 10mm and have standard, bridge, slide and check chairs I could alter to get something like. A photo would be help if anyone has one. It would be good to know how the PR's work in practice.
Thanks in advance.
Roger
Can you help.
I need to understand what a 3PR & 4PR looks like and how I can make one up from other chairs. They are shown on a B switch diagram by Exactoscale. I am making a B6 in 10mm and have standard, bridge, slide and check chairs I could alter to get something like. A photo would be help if anyone has one. It would be good to know how the PR's work in practice.
Thanks in advance.
Roger
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