Scratch Build, What's needed?

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25 Sep 2015 21:25 - 25 Sep 2015 21:26 #6193 by AlanF
Replied by AlanF on topic Scratch Build, What's needed?
Chris, if you are referring to the slec fuselage jig, it is ok -ish; all you get is a load of plastic clamps + screws and a piece of printed sticky plastic.
You supply the 18mm melamine chipboard and you drill all the holes for the clamp screws.
It has it's uses in stopping the fuselage going banana shaped but the clamps themselves are quite flimsy and require additional clamps to keep things square. I'd give it 5/10

A few other random musings:

For building boards I use a an old door laid across a couple of old kitchen units and cover that with a sheet of plaster board; flat, takes pins well and is cheap to replace when you knacker it.

A bench hook and mitre box will come in handy.

If you buy a dremel makes sure you get decent eye protection and USE IT EVERY TIME you're grinding or cutting.

Cyano fumes can give you flu like symptoms and some people suffer worse than others Epoxy can cause skin problems and it's effects can be cumulative. Balsa dust is bad, carbon dust is probably worse - work outside if you can when sanding.

Collect tin lids and lolly sticks for mixing epoxy, curry trays for bits, jam jars for brushes - I never seem to have enough.

Plastic A4 wallets, when cut open, can make good plan protectors

Lego or Duplo bricks make good jigs for keeping wing ribs square.

Definitely +1 for the razor plane – you wont believe how therapeutic using one is.

A Stanley knife is useful for accurate cutting of ply up to about an 1/8th inch ( lots of light cuts)

If you are film covering, the rotary cutting tools used for dressmaking are easier to use than scissors.
Last edit: 25 Sep 2015 21:26 by AlanF.

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25 Sep 2015 22:05 #6195 by JonTappin
Replied by JonTappin on topic Scratch Build, What's needed?
One of these with plenty of blades

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  • MikeSeale
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25 Sep 2015 22:21 #6196 by MikeSeale
Replied by MikeSeale on topic Scratch Build, What's needed?
Lots of good advice from all, but I have to comment on the use of plasterboard...not only can it cause skin irritation but disposing of plasterboard is becoming increasingly difficult and I predict it won't be long before you have to pay to leave it at the tip. Sundeala has already been recommended...I use cork tiles.

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25 Sep 2015 22:33 #6197 by JRI
Replied by JRI on topic Scratch Build, What's needed?
Best advice I ever got:
Measure twice, cut once!
Buy cheap, buy twice!

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25 Sep 2015 22:51 #6198 by AlanF
Replied by AlanF on topic Scratch Build, What's needed?
The irritation aspect, I suspect, is more likely to be experienced by those in the building trade where continual exposure to the dust from cutting is present. It is a good idea, however, to tape cut edges. I've never experienced any problems and I'm a very sensitive fellow - YMMV. As for disposal, I don't know, other than we were charged £2 by Sita at Teignbridge dump to dispose a carrier bag of stones! So anything could happen

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25 Sep 2015 23:30 #6199 by ronp849
Replied by ronp849 on topic Scratch Build, What's needed?

MikeSeale wrote: Lots of good advice from all, but I have to comment on the use of plasterboard...not only can it cause skin irritation but disposing of plasterboard is becoming increasingly difficult and I predict it won't be long before you have to pay to leave it at the tip. Sundeala has already been recommended...I use cork tiles.


Blandford start charging for Plasterboard, amongst other things, next year.

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27 Sep 2015 09:17 #6214 by John Bannister
Replied by John Bannister on topic Scratch Build, What's needed?
As a complete novice I've started to build one of these RCM 15-500 printed the plans on A4 and taped them together.. I chose this model because it looks simple for a first attempt and a bit different to the Wot.
I've cut out the parts on a CNC machine and built the wing in one piece, to keep it straight I used a board and a piece of angle iron.
I've glued every thing with gorilla wood glue. One thing that you need that's not been mentioned is a lot of time.
If you need parts cut out I can do it for you if you provide a drawing and the material.
If you need a fret saw just make one Fretsaw

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27 Sep 2015 21:20 - 27 Sep 2015 21:21 #6236 by Chris001
Replied by Chris001 on topic Scratch Build, What's needed?
That's looking good, what are you planning on powering it with John?

As for the time, yep, there never seems to be enough of it, or there is too much of it when you're not enjoying yourself! I've decided it will take as long as it takes. I tend to be very cautious the first time I try to do something like this and it is going to be especially important on this project as I will not have instructions, so I'll be looking at the plans and trying to work out in which order to do things so I don't end up in a mess later.
Last edit: 27 Sep 2015 21:21 by Chris001.

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29 Sep 2015 20:20 #6281 by John Bannister
Replied by John Bannister on topic Scratch Build, What's needed?
SK3 - 5045-660kv the same as in your Wot 4

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29 Sep 2015 20:58 #6283 by Chris001
Replied by Chris001 on topic Scratch Build, What's needed?
You should have a lot of fun with that, both Mike and I are using 11x8 props on that motor. Hope to see you with your new plane at the field soon.

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