Vixen Porta mount › Forums › General Discussion › Vixen Porta mount This topic has 2 replies, 2 voices, and was last updated 3 years, 4 months ago by Mr Jack Martin. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts 6 August 2021 at 4:47 pm #575020 Mr Jack MartinParticipant The design of the plastic slow motion handles leave a lot to be desired, they keep coming loose!! I tried a jubilee clip, doesn’t work! Any suggestions please. Jack Essex UK Attachments:vixen.jpg 6 August 2021 at 5:47 pm #584572 Robin LeadbeaterParticipant Sounds it is a common issue eg https://www.cloudynights.com/topic/600195-vixen-porta-ii-slow-mo-knob-fix-for-some/ If the shaft is the same diameter, swap them out for something like these perhaps? EDIT: from the one review on there it seems it is indeed a good solution for the porta mount https://www.rothervalleyoptics.co.uk/skywatcher-slow-motion-cable-set.htm (other retailers are available) Cheers Robin 7 August 2021 at 5:42 am #584573 Mr Jack MartinParticipant Robin, Many thanks for the links. Problem solved. Jack Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Connect with :Login with Sheep CRM Log In