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Member postings for Devcon1

Here is a list of all the postings Devcon1 has made in our forums. Click on a thread name to jump to the thread.

Thread: New EDF Mini Jets- Sabre & MiG15 RCM&E 2018 Special
31/12/2018 00:04:15
Looks to be a great build, watching with interest.
Thread: Wot 4 MK3 Classic
30/12/2018 10:09:09

Thanks Rich too,

The hinges were a bit bendy and because the hinge centre stood out quite a bit to get the correct pivot point there was too much flex. The little bit of snake outer added a lot of stiffness. As I'll have large deflections on the surfaces they needed to be strong.

In reality I should have been patient and ordered some of the heavy duty Robart versions which would have been better.

29/12/2018 23:42:39
Wing covered. Boy was I not wrong about the football. Last 40 minutes down to 10 men and I don't think the ball went into their half after that. Our keeper was world class, Exeter fans must have left the ground in disbelief. Up the Mariners.
29/12/2018 10:42:09

Thanks cymas, not sure if it's Russians chasing Americans or vice versa.

The end is in sight, details parts of covering done. The rest tonight. I do not enjoy doing wing tips in film, the finish so far is not very neat.

20181229_102437.jpg

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Just off to watch the mighty Mariners chance their luck at Exeter FC. Fingers crossed.

27/12/2018 22:35:33

Squadron markings courtesy of Hobbyking.

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26/12/2018 20:16:29

It's rough out there, half a wing done. Had to make a solid balsa encasement to hold the flap servos.

20181226_200805.jpg

Thread: Christmas wishes
25/12/2018 23:55:18

Hope you all have a peaceful Christmas, wished for New Year and special thoughts for those in poor health.

John

Thread: Wot 4 MK3 Classic
22/12/2018 22:59:42

Ailerons and flaps roughly fitted. Will cover wing and control surfaces seperately. Knuckle joints beefed up with old snake outer.

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22/12/2018 20:02:08
Awe shucks, my Android phone doesnt give me the option to add photos.
22/12/2018 20:00:32
Back on it like a Scotch Bonnet.

Have had to simplify the hinge mechanism to get her into the air so have gone for offset knuckles.
Thread: Best Heating Option For Your Hobby Shed
01/12/2018 09:22:23

I have a 5x8 metre timber framed shed fully insulated with 60mm Celotex in the walls and 100mm in the flat roof, floor is double layered 18mm treated board with a thin sandwich of radiator insulation.

I use a small oil filled radiator which is connected to my Hive network via a smart plug with various timer settings. For example during a weekday I have it come on for short periods just to keep the temp topped up.

With the remote access via the Hive app I can turn the rad on or off if my plans change. For a bit of fun I've put smart bulbs and a motion sensor in so all my shed lighting is fully automatic now.

I've got a decent size flat screen TV in the shed and once I'm in there between me, the TV and the kettle we generate enough heat to to overide the oil radiator.

Thread: Fouga magister 1/4.5 moulded from scratch
26/11/2018 04:52:14

That's very neat work and well worth the effort.. I like the idea of being able to remove them.

Thread: They Shall Not Grow Old
13/11/2018 13:38:14

For me it was the most visual and stunning piece of television I've ever seen, the first clip that evolved into colour was breathtaking, my jaw dropped.

I was completely drawn into the scenes and almost felt like being there, all comments that I've read before but it really did bring these soldiers to life and told an incredible story of their experiences and both the harsh reality of the front line but also the fun and day to day aspect of war on foreign soil for these men and women.

A truly inspirational and humbling piece of work.

Thread: Wot 4 MK3 Classic
06/11/2018 21:29:43

Will have slightly recessed ailerons/flaps for a slightly seam less look so needed to cut a V into the false trailing edge.

p1070489.jpg

I made a tool with two Swann Morton blades glued into position, did a trial with another one that brought the tips together to do the V in one cut but the balsa was a bit too hard to be able to draw the tool along.

p1070491.jpg

Tool ready to do the cut. Where I've had to do a V cut before I've done it by hand but with poor results.

p1070492.jpg

End result.

Worth it, I think, for a few minutes work making the tool.

05/11/2018 19:27:22

No idea why the double post, I went in to edit some errors and don't think I did the usual of hitting the post button twice.

Must say it's my workshop at work and not at home, unfortunately.

05/11/2018 17:49:20

After some exhaustive and scientific testing I'm happy the bolts are OK in the shear orientation.

p1070467.jpg

The rig.

p1070469.jpg

The load.

p1070470.jpg

Failure number one, the rig took my dead load but failed with slight movement. The bolt broke through the end grain hole.

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Failure number 2, I replaced the end piece with grain at 90 degrees. Again it took the dead load but failed after slight jumping.

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Failure number number 3, although I allowed some up/down play where the mock LE meets the mock bulkhead some force was exerted to the rear.

p1070481.jpg

The final test kept the rig unbroken and had me jumping up and down on it with the results shown below.

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It took some considerable jumping up and down to cause this damage so I'm happy it will cope with all flight and landing scenarios. Now I weigh a tad over 13 stone so no lightweight.

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Thought I'd add a picture of my new toy whilst I was in the workshop testing.

 

Edited By Devcon1 on 05/11/2018 17:50:52

Thread: Good News Story
05/11/2018 10:53:09

The positive side of "Drones" on display.

**LINK**

Thread: Wot 4 MK3 Classic
04/11/2018 21:20:50

Got me thinking though, I might mock up a rig to replicate the method using some wood.

A fixed bit of joinery timber with a smaller peice to match the wing chord, I shall then stand on the wing section to see what happens as a dead load, I'll then try a shock load.

I wonder how this could be calculated though.

?😂

04/11/2018 21:07:58

Good point Kim.

I did think long and hard about that aspect and, rightly or wrongly, concluded that for all normal flight loads they would be fine. Where the LE meets the bulkhead there is no gap so it is a very accurate shear force, I can revert to dowels or even metal bolts but I'll see how I get on.

04/11/2018 17:11:05

Wing fixing completed.

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Holes into wing formed with old aerial tube, they go in about 2 inches.

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Plastic inserted and glued with PVA, the wing bolts are a tight fit in the tubes.

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The two kit wing bolt retainers were ground down to remove the tangs and glued onto and through the bulkhead.

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When screwed in all is a nice tight fit, I only used the metal "nuts" to help seat the bolts, as no force is required to retain them, and make it easier to insert and remove them

May seem a tad OTT but the desired clean look is maintained.

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