try the Roland site. you should be able to get them there.
Roger I will check to see if I have an extra. I use my old roland as a back up so if I only have one....I won't want to give it up.
Roger I run a PNC960 & they had parts for it & its older than the 1000 most the pens are compatable with Houston Instruments. If ya can't get one you may have to have it made
Did you break the old one? Superglue?
Other models may have the same holder.
Ebay is a good source- or put a wanted ad here for a nonworking Camm1.