I have just found out that Per Frejvall died suddenly last Friday. If you own a 10Micron mount you will have undoubtedly exchanged emails with him or use his model making software. He was also responsible for the BlueAstro Weatherstick design.
His enthusiasm and helpfulness will be sadly missed by the global community. As one of the SGL posts put it, a new star has just appeared in heaven. He was very helpful to me personally and feel I knew him, though we never have met.
The condolences are building up on the SGL forum.
https://stargazerslounge.com/topic/272964-sad-news-rest-in-peace-per-frejvall-perfrej/?page=3