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Update on Rotary Chip Waves

Chrys

#15900

Update on Rotary Chip Waves | 14 May, 1998

Last week I posted a message on rotary chip waves that stated that the drive shaft had a protective boot around a u-joint that degraded and exposed the joint. Someone from the manufacturer read it and contacted me. He told me the problem has been resolved by changing the u-joint to a flexible coupling. Since my machines were less than a year old, the shafts were covered under warranty. Today I received my replacement shafts free of charge. If anyone has had similar problem with their rotary chip waves, contact the manufacturer. Since that was the only gripe I had about rotaries, now I just love them to death. Thanks, SMT forum. You saved me $1400 in replacement parts and got the word out to a bunch of other users.

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John

#15901

Re: Update on Rotary Chip Waves | 28 May, 1998

| Last week I posted a message on rotary chip waves that stated that the drive shaft had a protective boot around a u-joint that degraded and exposed the joint. | Someone from the manufacturer read it and contacted me. He told me the problem has been resolved by changing the u-joint to a flexible coupling. Since my machines were less than a year old, the shafts were covered under warranty. | Today I received my replacement shafts free of charge. | If anyone has had similar problem with their rotary chip waves, contact the manufacturer. | Since that was the only gripe I had about rotaries, now I just love them to death. | Thanks, SMT forum. You saved me $1400 in replacement parts and got the word out to a bunch of other users. Chrys, Thanks for the follow up. It looks like it did you some good as well! John

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Tom Gervascio

#15902

Re: Update on Rotary Chip Waves | 29 May, 1998

| | Last week I posted a message on rotary chip waves that stated that the drive shaft had a protective boot around a u-joint that degraded and exposed the joint. | | Someone from the manufacturer read it and contacted me. He told me the problem has been resolved by changing the u-joint to a flexible coupling. Since my machines were less than a year old, the shafts were covered under warranty. | | Today I received my replacement shafts free of charge. | | If anyone has had similar problem with their rotary chip waves, contact the manufacturer. | | Since that was the only gripe I had about rotaries, now I just love them to death. | | Thanks, SMT forum. You saved me $1400 in replacement parts and got the word out to a bunch of other users. | Chrys, | Thanks for the follow up. It looks like it did you some good as well! | John I've got a smattering of rotary chip waves as well as the conventional chip waves. The jury is still out with me. The defect redcution was slight about only 50 PPM but htat may be related to the designs I'm wave soldering. Would like some feedback withanyone using them to do selective soldering. Have been getting problems with solder bridges on connectors . Am usaing a 2 % rosin based no clean flux Due to peelback problems I Think. If I correct for this by reducing chip and lambda pump speeds I get voids on leads within 0.020 inches of the masking pallet walls. Has anyone had this problem and any inventative solutions with either the pallet design or wave solder settings.

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Dave M

#15903

Re: Update on Rotary Chip Waves | 9 June, 1998

| | | Last week I posted a message on rotary chip waves that stated that the drive shaft had a protective boot around a u-joint that degraded and exposed the joint. | | | Someone from the manufacturer read it and contacted me. He told me the problem has been resolved by changing the u-joint to a flexible coupling. Since my machines were less than a year old, the shafts were covered under warranty. | | | Today I received my replacement shafts free of charge. | | | If anyone has had similar problem with their rotary chip waves, contact the manufacturer. | | | Since that was the only gripe I had about rotaries, now I just love them to death. | | | Thanks, SMT forum. You saved me $1400 in replacement parts and got the word out to a bunch of other users. | | Chrys, | | Thanks for the follow up. It looks like it did you some good as well! | | John | I've got a smattering of rotary chip waves as well as the | conventional chip waves. The jury is still out with me. | The defect redcution was slight about only 50 PPM | but htat may be related to the designs I'm wave | soldering. | Would like some feedback withanyone using them to do selective | soldering. Have been getting problems with solder | bridges on connectors . Am usaing a 2 % rosin based no clean flux | Due to peelback problems I | Think. If I correct for this by reducing chip and lambda pump | speeds I get voids on leads within 0.020 inches | of the masking pallet walls. | Has anyone had this problem and any inventative | solutions with either the pallet design or | wave solder settings. You may try a more severe angle on the pallet perimeter. One would think the larger it is the less the solder has to work to get to the board.

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