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Problems with registration of a Barudan cap frame? Possible solutions.

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Old July 16th, 2012, 10:26 AM   #1 (permalink)
minimalist minimalist is offline
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Default Problems with registration of a Barudan cap frame? Possible solutions.

I'm reposting this from my other thread so that others with the same problem might find a solution to their registration problems after removing the cap frame from the driver to change a bobbin or other issues.

I went over the entire frame and think I have found what may be causing the play in the frame. The two release levers on the driver (the ones you push to release the frame from the driver) seem to have some wear on the pins that lock into the cap frame. This particular issue has to do with tightness of the locking into the driver.

The main issue is the gold colored plate mounted on the top of the blue driver frame. It is showing wear on either side of the plate causing the cap frame to move from side to side slightly. This plate goes through the cap frame pushing against a pin with a spring. Here is a diagram of the cap frame and the other link is the part:

http://www.shopbarudan.com/c-93-parts-ex-elite.aspx

http://www.shopbarudan.com/p-3169-ef...rive-unit.aspx

Here are the levers:

http://www.shopbarudan.com/p-3170-ef...assy-left.aspx

http://www.shopbarudan.com/p-3171-ef...ssy-right.aspx

I'm going to assume that the top plate above was made from a softer metal so that the aluminum driver ring wasn't the sacrificial part. If the plate was heat treated and stiff the resulting issue might have been the wear of the aluminum driver ring mounting holes which would have been a more expensive part to replace.
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Old July 16th, 2012, 10:34 AM   #2 (permalink)
inkman996 inkman996 is offline
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Default Re: Problems with registration of a Barudan cap frame? Possible solutions.

Some people do not take care of their cap frames like they should be. When registration issues arise they always blame either the digitizing or the hat.

The most important thing to maintain on your cap frames is the drive wheel bearings, their position is adjustable and they will got sloppy over time. Always make sure they are snug enough but not to slug to interfere with the frames rotation. You would be surprised at how much play those bearings can cause of not maintained.
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Old July 16th, 2012, 11:40 AM   #3 (permalink)
minimalist minimalist is offline
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Default Re: Problems with registration of a Barudan cap frame? Possible solutions.

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Originally Posted by inkman996 View Post
Some people do not take care of their cap frames like they should be. When registration issues arise they always blame either the digitizing or the hat.

The most important thing to maintain on your cap frames is the drive wheel bearings, their position is adjustable and they will got sloppy over time. Always make sure they are snug enough but not to slug to interfere with the frames rotation. You would be surprised at how much play those bearings can cause of not maintained.
Only the lower cap drive bearing is adjustable as far as I can tell.
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