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250 Class Electric Helicopters 250 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 03-09-2012, 09:19 PM   #1
Bruno28
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Default How to remove Screws?

Hello,

My trex 250 has some screws that the tool does not work, as the metal from the screws are too soft and end up enlarging the area in which the tools should go in.

How do I remove the worn out screws?
I've tried a bigger size allen key, but its too big to fit in.
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Old 03-09-2012, 10:41 PM   #2
CNP835
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you can try the MIP thorp drivers or the good old dremel set and cut a slot for a flat head screw driver across the top of the head. I hated my 250 until I got the MIP tools
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Old 03-10-2012, 03:47 AM   #3
Bruno28
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Quote:
Originally Posted by CNP835 View Post
you can try the MIP thorp drivers or the good old dremel set and cut a slot for a flat head screw driver across the top of the head. I hated my 250 until I got the MIP tools
great idea about the flat screw driver!
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Old 03-10-2012, 08:01 AM   #4
Ron~FordTech
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Default Rather Than Start a Fresh Thread...

My 250 is used, and 95% of the various screws have their sockets rounded. I had a devil of a time removing the head-securing screw! (Since the Dremel is a bit like a sledgehammer-to-kill-a-fly scenario...I used a small file and created opposing flats on the outer diameter of the button head. It allowed me to grab the head with needlenose pliers - worked like a charm)

Anyway I wanna replace essentially ALL of the assorted screws ASAP. I checked the manual, and many of the screws are identified as T1.5 x 3mm. In my mind, the "T" at the beginning denotes a Torx head/socket. That's not the case here though, is it?

And the ones in greatest number -- which I need to replace ASAP -- (socket: 1.3mm) are described with this rather cryptic notation:

0# x 3mm

The head screw (socket: 0.9mm) is described as this:
0#x6mm80



I guess what I'd really appreciate is a short list; the two or three ultra-tiny ones as mentioned. What size are they, anyway?

And have we found a good source for stainless replacements/upgrades besides RC_Screwz? I have a hi-grade driver, but until I get the crappy ones out it is of little use to me. And until I know the sizes there's no sense stumbling around online or in stores.

Please & thank you!
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Old 03-10-2012, 09:10 AM   #5
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The T screws have a machine screw thread.

I've been using Align hardware with MIP Thorpe hex drivers.

Best combo IMHO.
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Old 03-10-2012, 10:01 AM   #6
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The align hardware is average at best: the hex size has too much 'tolerance' to it and the metal is so soft i could chew it. But the MIP makes it ok.
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Old 03-10-2012, 10:22 AM   #7
Ron~FordTech
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Quote:
Originally Posted by jfh666 View Post
The align hardware is average at best: the hex size has too much 'tolerance' to it and the metal is so soft i could chew it. But the MIP makes it ok.
Yes - I completely agree.

That said, when I do get started removing the crappy (chewable) screws...are there better replacements without buying the expensive (and iffy quality) RC_Screwz kit?
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Old 03-10-2012, 11:58 AM   #8
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Quote:
Originally Posted by Ron~FordTech View Post
Yes - I completely agree.

That said, when I do get started removing the crappy (chewable) screws...are there better replacements without buying the expensive (and iffy quality) RC_Screwz kit?
FWIW, with the MIP/Thorpe drivers (0.9 and 1.3mm),I've had no issue with the standard Align hardware.

Back to another of your questions, the #0 designation is just the bolt size, like #2 or #4. These are not metric. I too found it was unusual to see these, I just figure there is no metric equivalent in that size range (??). the x3mm is just the bolt length.
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Old 03-10-2012, 10:19 AM   #9
Ron~FordTech
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Gad - I can't believe how difficult it is to source a simple hex driver in Canada!! My brothers on the other side of the ditch don't know how good they have it when it comes to selection, availability and -- especially -- price on stuff.

I've been calling all over and the MIP/Thorp driver is not in stock anywhere within a semi-reasonable distance...and where they DO have one it'll cost me several dollars to have it shipped. AND I have to wait for it. Very frustrating.

Even good old Amazon -- despite having it at a decent price -- won't even mail it across the border! And (as usual) the Cdn Amazon website has...well...books. Thousands of books - yes - but SFA outside of that.
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Old 03-17-2012, 06:01 PM   #10
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I have an awesome torx set that i got from Fry's that lock in perfectly with the hk torx screws. It's called a security bit set and has a great ratchet screw driver. The set had a picture of a bull dog on the front. I will take picture when i get home. Perhaps it can be ordered online. It was very inexpensive (but not cheaply made)
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Old 03-17-2012, 07:14 PM   #11
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Back to removing screws, I prefer the Dremel using the small light weight cutting wheel. However always use small soldering to heat the old screws up first before trying to remove and after cutting slot in head to remove. Most of Align screws now 1.3 mm heads and that with use of Thorp MIP and not over tightening and small amounts of thread locker work well.


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250 Class Electric Helicopters 250 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.

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