Styx,
Just drill two 3/16" holes on either side of crevice tool. These will allow for vacuum release and you can easily cover them with your thumb and finger if/when you need to boost the vacuum. As to sucking up the velvet, did you glue velvet strips on either side of the slit on the crevice tool? These methods have worked very well for my on my DIY RCM. My only complaint is that the thing is so damn loud.
Dan
Just drill two 3/16" holes on either side of crevice tool. These will allow for vacuum release and you can easily cover them with your thumb and finger if/when you need to boost the vacuum. As to sucking up the velvet, did you glue velvet strips on either side of the slit on the crevice tool? These methods have worked very well for my on my DIY RCM. My only complaint is that the thing is so damn loud.
Dan