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Old Mar 09, 2006, 10:20 AM
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hamilton ontario canada
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Help!
blade cx lower pin

someone posted detailed instructions on how to repair the broken pins on the lower blade assembly- i can't find them-any help-thanks
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Old Mar 09, 2006, 10:48 AM
Drifter
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Joined Apr 2004
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There is a sticky in the Multi Rotor Heli's section called "How I Modified my BCX ...". The first post in that thread has a couple of attachments at the bottom, one of them is BCX Mods.doc. About half to two thirds of the way through that doc is the info you remember.

I have done it to my BCX and it is working great. I used a 2.5 mm drill for the hole and cut off a section of the drill bit shaft to glue into the hole.
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Old Mar 09, 2006, 10:51 AM
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thank you but there was another posting that was even more detailed??
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Old Mar 09, 2006, 01:11 PM
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I posted this last week
http://www.rcgroups.com/forums/showthread.php?t=487830

If you need more info let me know. I pretty much did the same thing but used a press fit and made the pin by hand instead of a drill bit.

I am thinking you can make it as simple as drilling a #44 or #45 hole then driving a 3/32 set screw into it. The set screw may need to be ground down a bit to get the correct length.

The blades when connected should hold any pin in place, as long as they fit snugly.
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Old Mar 09, 2006, 01:53 PM
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thank you
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Old Mar 09, 2006, 01:57 PM
Just call me crash.
Joined Jan 2006
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Johnny, it's the same as ICON's post but uses drill bits for pins and there are pictures. second page of the BCX Mod thread. Have steady hand or drill press ready.
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Old Mar 10, 2006, 02:02 AM
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United States, AZ, Tempe
Joined Jan 2006
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I repaired my lower pin with carbon rod. The size is .097 I think.

1. I sheared both pins off as cleanly as possible.
2. I used a brand new xacto knife to center a hole where I would drill out the area where the plastic pin had been.
3. I drilled a hole a little bit smaller than the size of the carbon rod.
4. I then reamed the hole out with the drill until the carbon rod fit into one hole, through the center, and out the hole on the other side.
5. I then cut the rod on one side so that now both side stuck out the correct length.
6. I applied a decent amount of CA to the outside, but applied a pretty liberal amount to the inside, so that the glue is on both sides of the pins.
7. I let everything dry overnight.
8. Because the carbon rod went through the center of the assembly, I simply drilled out the center to remove the carbon rod and excess glue.

Works like a dream!
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Old Mar 10, 2006, 09:58 AM
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Slick!
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Old Mar 10, 2006, 11:17 AM
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hamilton ontario canada
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great job everyone-i'm not sure if mine is broken or not-i replaced the center shaft -it flies great-can i check it without dismantling the whole assembly
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