rosstafar wrote:I have a b&h autoload that i bought on ebay. After showing one film, i noticed it to be a little jittery, so i proceeded to tighten two small plastic screws on the take up and feed arms. SNAP! ...
I am planning to start selling repair kits for these. About 1/4 of the B&H machines on Ebay with this general design have broken reel spindle screws, whether the seller discloses it or not.
I have been busy with other things, but I think I have figured out the weird metric thread on the screws, which is strange in itself since every other screw in a B&H 8mm/S-8 projector is either #3-48, 4-40 or 6-32 USA thread.
The repair kit will consist of a good used reel spindle, either 8mm or super-8, a *METAL* replacement screw, the spacer, and instructions. Since the screw is the reel torque adjustment, I need to come up with a way for purchasers to measure this figure. Replacing the reel spindle also is a practical necessity, since the remains of the now-headless screw are down in a threaded hole with no decent way of getting it out.
In case anyone is wondering, we have a large quantity of these owing to buying the machines for parts to make our TVT-8 video transfer machines, and we don't use the original reel spindles.
This is a major design flaw on B&H's part, putting a weak and brittle plastic screw that is under occasional great tension, in a machine that is otherwise almost indestructible.
This is comparable to Kodak's flub of putting an experimental rubbery plastic material in almost all of their movie cameras and projectors, and slide projectors, as a high-speed gear or a solenoid linkage. This stuff suffers degradation to a cheese-like weakness, and later turns to powder, with time.
Anyway, now that I've told you how a watch is made after your asking the time, I might mention that we will be listing the kits on Ebay later.