8mm Forum: bolex conversion

»	8mm Forum » 8mm Forum » bolex conversion

UBBFriend: Email this page to someone!

Author

Topic: bolex conversion

Jim Schrader
Phenomenal Film Handler

Posts: 1628
From: Savage, MN, USA
Registered: Jun 2003

posted September 16, 2010 10:48 AM

while converting my bolex to the three belt sysyem from the single flat belt i noticed my claw dose not work the same as it used to it makes noise and while it seems to work in forward it does not work in reverse does the claw arm have to be in a certain position in this spindle to operate properly?
Thanks for any info. jim

--------------------
jim schrader
"Let's see “do I have that title already?"

| IP: Logged

Thomas Dafnides
Expert Film Handler

Posts: 247
From: St. Louis, Missouri USA
Registered: Dec 2009

posted September 16, 2010 11:00 PM

What was wrong with the original single belt system?

| IP: Logged

Jim Schrader
Phenomenal Film Handler

Posts: 1628
From: Savage, MN, USA
Registered: Jun 2003

posted September 19, 2010 03:35 PM

could not find a belt plus it always slipped

--------------------
jim schrader
"Let's see “do I have that title already?"

| IP: Logged

Thomas Dafnides
Expert Film Handler

Posts: 247
From: St. Louis, Missouri USA
Registered: Dec 2009

posted September 19, 2010 03:50 PM

Try Bolex in Switzerland, they might still have the belts or could give you a source.

| IP: Logged

Graham Ritchie
Film God

Posts: 4001
From: New Zealand
Registered: Feb 2006

posted September 19, 2010 06:01 PM

Jim
If you are unable to get the right belt I would check out any Seal Importers locally. I found a place out here called SIL Importers they stock hydraulic and pheumatic seals, O Rings and bushes they were brilliant to deal with and easily matched new O rings for my ST1200 and ST180 for less than $2 each with a huge range of sizes to choose from. I just needed the old one for them to measure and match. The material is EPDM {Ethylene Propylene rubber} and works well.

Graham.

| IP: Logged

Paul Adsett
Film God

Posts: 5003
From: USA
Registered: Jun 2003

posted September 19, 2010 07:02 PM

Parker Seal Corpn. in the USA stock a huge range of o-rings in a large variety of materials. They have distributors all over the country - just go to their web site. I got 3 Butyl rubber 0- rings for my Bolex 18-5 from them about 20 years ago, and they are still like new. Graham mentioned Ethylene Propylene (EPDM) which is also an excellent material. Both Butyl and EP rings are extensively used in military and aerospace applications and will just about last forever. Make sure you get 50 or 60 durometer (hardness) rings for the smoothest running in the Bolex..

--------------------
The best of all worlds- 8mm, super 8mm, 9.5mm, and HD Digital Projection,
Elmo GS1200 f1.0 2-blade
Eumig S938 Stereo f1.0 Ektar
Panasonic PT-AE4000U digital pj

| IP: Logged

Barry Fritz
Phenomenal Film Handler

Posts: 1061
From: Burnsville, MN, USA
Registered: Dec 2009

posted September 20, 2010 02:35 PM

The O rings work very well on the three belt projectors, but the one Jim has is a very early model. Unlike the later 3 belt models, the single belt model did not have grooved or V pulleys. Both the large and small pully were flat with no edges. I do not believe an O ring, would stay on the flat pullies.

| IP: Logged

Jim Schrader
Phenomenal Film Handler

Posts: 1628
From: Savage, MN, USA
Registered: Jun 2003

posted September 20, 2010 08:50 PM

Thanks for all your help barry gave me 2 bolex's to play around with I took my old belt and placed it on one of these + took some parts off the other one to make it complete and all seems to work well i will run a film leader through it tomorrow to see if it handles it fine. in the mean time if anybody needs parts for your bolex let me know i may part out with these units sincce they are so heavy to ship complete.

--------------------
jim schrader
"Let's see “do I have that title already?"

| IP: Logged

Bryan Chernick
Jedi Master Film Handler

Posts: 654
From: Bothell, WA, USA
Registered: Mar 2010

posted September 21, 2010 11:25 AM

Do you have any of the Bolex emblems that always fall off? I need the one that goes on the projector, not the cover.

| IP: Logged

Jim Schrader
Phenomenal Film Handler

Posts: 1628
From: Savage, MN, USA
Registered: Jun 2003

posted September 21, 2010 01:00 PM

let me look i do not remember seeing any but let me double check and get back to you.

--------------------
jim schrader
"Let's see “do I have that title already?"

| IP: Logged