This as easy as it looks

More consistent finish to walk along each pass at the same angle rather than rotating and then moving along
good job your trained with scissor lift
 
It's been nearly 40 years since I seen that first done. Your arms were dropping off after a few minutes. I cant believe they havent got an electric model now. Probably make it heavier?
 
Here you go @John j
20180519_100235.jpg
 
It's been nearly 40 years since I seen that first done. Your arms were dropping off after a few minutes. I cant believe they havent got an electric model now. Probably make it heavier?
They have
 
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