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Calibrating WIDE BELT sander1/11/18
Thank you in advance.
We just purchased a used DMC 3 head sander - Steel Drum, Rubber Drum, and a Platen.
We'll be using 80 grit, 120 grit, 180 grit
My question pertains to the heights of the 'shoes' that are before and after the heads.
For example Head #1 is say .500" above the feedtable frame.
Should the shoe before the 1st head be set to .480? (since I want to remove .020 with the 80 grit on head #1) ...
All the shoes 'float' IE are tensioned by springs.
Below is the order of contacts from the INFEED side. (there are idle rollers but they are on springs and do not have a seperate height adjustment from the shoes)
I presume that there needs to be enough pressure from the shoes to the board so that the board won't slip on the feedbelt (which is my current problem).
BTW we are solely sanding maple rips (not sheeted goods)
Hello Brent I don't have an answer for you but I have a question and a suggestion.
When you say shoe do you mean roller or literally a shoe that rubs on the wood?
The shoe after the first drum should be calibrated to the same height as the first drum in the working position. This means that the drum must be in the down fired position before you start.
The 120 needs to remove exactly .008" of reliably remove the 80 grit scratch so the head and following shoe will be. 008" lower.
The platen with 180 grit will need to remove .003 to .004" to remove the 120. The third head will often have it's own sanding drum, which means it is a combination head with a drum and platen.
If you need more assistance you can contact me at
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