my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » R3 with different mounting holes

Author Topic: R3 with different mounting holes Jack Ondracek Film God Posts: 2348 From: Port Orchard, WA, USA Registered: Oct 2002 posted 03-03-2003 10:40 AM                        OK... I feel real dumb now. We pulled a 1947 vintage Century C & R3 from a booth that we automated (the other set is still running like new). In the process, we had a reverse scanner & a new motor installed on the soundhead ($$$), then put the whole thing in the back room. It's been there for the last few years, awaiting what we intended to be an eventual move to the owner's drive-in, where an old Motiograph SH7500 is driving a DA. We've had 4 people handle this thing, and it was only last week that we discovered that the old "C" only had two mounting holes on it (back in the gear compartment). Unfortunately, so does this soundhead... and those holes don't match up with anything "SA". What shortsighted manufacturers! (actually... we all feel kinda dumb around here)  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 03-03-2003 02:36 PM                     Jack, I have seen Westrex equivelents of R-3's with only two mounting holes for the projectors in them. This is not unlike the mounting holes in older RCA sound reproducers. You use two bolts up from underneath and into the bottom of the projector head to secure it. If this is not the case its still no big deal....but its time for some accurate measurements to be done of an R-3 with the hole pattern you need and then transfer it over to that odd R-3. Drill and tap and then you're in buisness....be sure to use TapMatic for Alumnium to get factory clean threads in that metal. Mark @ CLACO  |  IP: Logged Dick Prather Master Film Handler Posts: 259 From: Portland, OR, USA Registered: Feb 2002 posted 03-04-2003 02:53 AM                     Jack, The Century C moumting is the same as all the rest of the American machines. Bolts mount up through the underside of the top plate of the soundhead to threaded holes in the projector on the gear side. If memory serves they are 3/8-16 thread. Century also used a 4 bolt system mounting from the top of the projector into some Century soundheads but not all. Usually on direct drive models. You should be able to mount almost all American picture heads to you Century soundhead then install the proper drive kit to make it work fine. Remember your older soundhead uses bushings not ball bearings on the sprocket shaft so extra oil points will be there. Dick  |  IP: Logged

All times are Central (GMT -6:00)

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.