Auto-weld close points ?

 From:  Samuel Zeller

I got a little problem here

Here's an Helvetica Neue Light "g" char

If I zoom

Is there a way (I already tried the rebuild command, bad result) to auto-weld points that are close to each other with less than X mm for example ?

It's driving me mad, I need to do 0.04mm fillets on those letters in a solid and it always fail because of those multiple points that doesn't make any difference in the overall letter shape :(