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Post  latole Sat Mar 04, 2023 2:23 pm

A Stuka I bought in Buffalo area fews week ago; siren propeller broken

Repair;
Put pin end in drilled hole on aircraft side and propeller shaft side.
The hole is not perfectly centered but you can't see it. Not easy to do.
Drop of glue testors at both ends
I let it dry 48 hours

And proper turn ! I'm very lucky it is not glued !

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Post  rsv1cox Sun Mar 05, 2023 12:36 pm

Good job on saving that Stuka's siren.

I find these Dremel bits are excellent for that sort of work.  They are sharp and present no wobble.  Available at most Walmarts.

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Most would opt for a pin vice, but I find a standard battery powered hand drill works best given a steady hand.  

Testors red tube cement is great, but you must let it cure for 24/48 hours before use.  

Bob
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Post  latole Sun Mar 05, 2023 12:48 pm

Nice set for hobby

I use a 0.040" drill wich is very little bigger than 1/32 from your set.
1/32 would be better ? It would do the job.


I have some 0.025" too wich are very small

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Post  GallopingGhostler Mon Mar 06, 2023 12:12 pm

For something soft like plastic, I have a modellers pin vise and a dozen drill bits, largest 3/32" going smaller in fine wire gauge sizes. Bought them over 40 years ago by mail order. For small things like that, it would be indispensable.

But I like your repair, latole. Although a touch off center, no one will ever notice. Recently I drilled out a Peerless shower valve escuchen mount, uses an ANSI 10x24 stainless screw. Builder who installed it 37 years ago broke the screw. Instead of removing the stud and replacing the screw, drilled a hole next to it and put of all things, a drywall screw.

2 months ago I repaired it. Drilled out the old broken screw stud, but was slightly off center. (Backside is inaccessible without much effort.) Cut threads with a 10x24 tap. Put a proper screw in the hole. Replaced seals on the valve which stopped the drip. (Fortunately was still able to buy parts for such an old valve.)

Polished up and with a new valve knob, looks new again.
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Post  latole Mon Mar 06, 2023 1:01 pm

GallopingGhostler wrote:For something soft like plastic, I have a modellers pin vise and a dozen drill bits, largest 3/32" going smaller in fine wire gauge sizes. Bought them over 40 years ago by mail order. For small things like that, it would be indispensable.

But I like your repair, latole. Although a touch off center, no one will ever notice. Recently I drilled out a Peerless shower valve escuchen mount, uses an ANSI 10x24 stainless screw. Builder who installed it 37 years ago broke the screw. Instead of removing the stud and replacing the screw, drilled a hole next to it and put of all things, a drywall screw.

2 months ago I repaired it. Drilled out the old broken screw stud, but was slightly off center. (Backside is inaccessible without much effort.) Cut threads with a 10x24 tap. Put a proper screw in the hole. Replaced seals on the valve which stopped the drip. (Fortunately was still able to buy parts for such an old valve.)

Polished up and with a new valve knob, looks new again.

Wow ! You are very skilled.
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Post  GallopingGhostler Mon Mar 06, 2023 2:17 pm

latole wrote:Wow ! You are very skilled.
Thanks, but no. Just practice and applied knowledge. Anyone who has successfully taken apart a Cox Engine and cleaned it, repaired it, overhauled it and etc. can do the things I did. Anyone who has restored or repaired a Cox plastic aircraft can do this. Ditto for someone who has successfully built a model airplane from a kit and got it to fly successfully.

It is all just having the boldness, tools, and willingness to do it. Very Happy
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Post  latole Mon Mar 06, 2023 2:26 pm

GallopingGhostler wrote:
latole wrote:Wow ! You are very skilled.
Thanks, but no. Just practice and applied knowledge. Anyone who has successfully taken apart a Cox Engine and cleaned it, repaired it, overhauled it and etc. can do the things I did. Anyone who has restored or repaired a Cox plastic aircraft can do this. Ditto for someone who has successfully built a model airplane from a kit and got it to fly successfully.

It is all just having the boldness, tools, and willingness to do it. Very Happy

You are right !
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