Thanks for outlining how to use these machines. About the math, why do you subtract 1 from the ratio?

@michaelkeropian2954

4 жыл бұрын

It is basic algebra. No one has ever given me a clear explanation for it. So I have followed the formula like l x w. However if you don’t take 1 away your set up will be wrong.

@finster101

4 жыл бұрын

@@michaelkeropian2954 Thanks for the reply. I took your information from the video and worked it out after looking up some pantograph math online. The pantograph ratio is equal to the (distance of drawing point to pivot)/(distance of tracing point to pivot) since you already have worked out the ratio you want and have measured the distance between the drawing point and tracing point. You are solving for the other distance that's where the 1 is generated. So in other words: ratio = D1 + D2/D1 or (D1/D1 + D2/D1) so the D1/D1 is the same as 1. Not sure if that makes sense it's hard to see written this way but at least I understand why you are subtracting 1 now.

@michaelkeropian2954

4 жыл бұрын

@@finster101 That's how it was explained to me, but I simplified the formula.

sir I want to engraving on iron by model. my model size is 8 inch Dia but my iron mold Dia 32.4 mm so how to engraving on iron, and please. help me how to make machine for sculpture designing on iron

@michaelkeropian2954

5 жыл бұрын

Perhaps you should look into engraving machines similar to a machine called the Janvier die engraver that is used to make steel dies for medals and medallions

@sonuverma2796

5 жыл бұрын

Sir can you provide me details of machine how can I make it in india

@michaelkeropian2954

5 жыл бұрын

@@sonuverma2796 I am not clear what you are trying to engrave. If you are making dies for medals I would suggest you google the Janvier Machine. Which engraves and reduces steel dies for making medals. I can't post a picture but you can find pics online. If you are looking for a basic design look up Berthold Nebel Pantograph Patent and drawings are online.