I need help and a quote from a CNC shop for a small project.?
Wow looks like you have had quite an ordealThe only reason I could think that would happen is incorrect removal of the tapeGenerally when siding comes coloured from the manufacturer it is factory sprayed which rarely comes off, unlike painting yourselfThe tape should not have been left on so long and should have been carefully taking offAs for the vinyl, the no other option really other than spot painting because strippers don't always work and may harm the vinylBut over time or even right away the spot painting will most likely be noticeable, even if it is the exact same colour white and sheenDepending on the specific paint used the colour changes over timeOil based paints tend to yellow and latex sometimes cracksThis happens a lot with paint that doesn't have UV protection in it or gets a lot of moisture over timeI would defiantly get him to do the patio for no chargeHe is suppose to be the professional and when they make mistakes it's gotta cost themEspecially a mistake like over sprayThat's a mistake for a beginner to make.
the original paint that was on the alum came offit should not have come off if that was painted on the alum from the factory, That stuff is usually baked on and never comes off, so i believe that the reason it came of with the tape is because the paint had poor adhesion to the alumWhen tape is left on too long the problem you have is getting the tape of without it tearing and leaving adhesive on the paintWhen paint comes off, it is always an adhesion problem with paint it was applied tooJust so know The way paint adhesion properties is tested in labs is using tape They put tape with strong adhesive and pull it offif some paint comes off , it failed the testYour painters can not be held responsible for the poor adhesion of the original paintBut it sounds like they will try and repair it anywayThe over spray is all on themI have NEVER under stood how or why spray painters think that over spray is acceptable it is notThey could have gone behind themselves and cleaned the overspray off before it dried completely.
What you want is CNC Prototyping which depends on your doing the 3D design file and sending electronic files to the firms In fact, the design you have described doesn't require CNC It could be done in most machine shops with a shear and a hole saw if the 1/4 guide hole and 1/16 saw kerf is acceptable (water abrasive cutting with CNC would give a narrower kerf - maybe 1/32)
