Rupes LHR21 MARK2 polisher

[Indiglofish61]

I have just ordered the rupes lhr 21 mark 2 polisher, and the 5inch backing plate for the 5 inch pad from rupes, I am wondering how much difference there is in the throw with the 5 inch backing plate with the 5 inch pad from the 6 inch? Does anyone know cannot find the answer antwhere.

[Justin at Final Inspection]

Not too sure what your asking but the Rupes pads are actually a 5in that flares out to 6in. And a 6in that flares out to 7in. I run my Mark ll 21 with the 5in setup with Rupes pads and it works great.

[mk9750]

If I understand the question, I think the answer is zero.

I don't believe the throw is different from one size backing plate to another. In this case, it will still be 21mm.

The distance the pad would travel, I think would be larger by 1/2", or @ 12mm. I get that by taking the difference in the pad size (1"), and dividing by 2, as the distance from the center of the pad where the "throw" I believe would be measured is half the diameter of the pad, or the radius, or 1/2". That equals 12.25mm larger surface that 1" larger pad would travel. But that 12.25mm I believe would be the same delta for any "throw".

[sudsmobile]

The throw is exactly the same. The coverage area per throw is as explained above and easily figured with basic math.

[DBAILEY]

That effective area of pad motion where true correction takes place would be 1 inch smaller put your machine's oscillation is still offset at 21mm