Polar 115 EMC sizes off

Hello I have a polar 115EMC that is giving me a small problem. If you cut 20” then 10” and stack on each other they are different sizes. Is there an adjustment for this. I have scanned the backguage by moving it and shutting machine off. No help. I have changed knife compensation and strangely that does seem to help it some but not fixing g problem. Sure would appreciate any advice.

 

Hi Sir:
You can have this problems:
1) Table is Not square to the knife carrier
2) Backgauge is Not parallel to the knife
3) Sledge guiding has play.
4) Electrical adjustment must be carried, however angle 90 must exist between backgauge and table, use precise square.
Test these steps.

 

If machine has a tam card you need to adjust red pots to correct the measurement

 

Thanks Andy. It does have a card. I have managed to get it doing good now that I adjusted the .010 pot and then readjusting the knife compensation.

 

That's good to hear

 

Yeah no fun backtrimming every cut to make sure they all come out the same.

 

Hi Sir:
Did you do this test ?? Please do it.
You can have this problems:
1) Table is Not square to the knife carrier
2) Backgauge is Not parallel to the knife
3) Sledge guiding has play.
4) Electrical adjustment must be carried, however angle 90 must exist between backagauge and table, use precise square.
Test that steps.
Let me know, for to guide if the problem persist in another Test.

 

Yes I performed all these tests. Problem persisted and I changed the .010 pot on the card. Cutting good now. Thanks.

 

Good sir
Thank you.