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Re: Pieter Visser

Posted: Fri Apr 11, 2014 8:02 pm
by whisper
Great! Was pretty sure you did but thought I'd just make 100% sure!
This job and the undercarriage box are the only back breakers. After that the composite work is all much easier! :D

Re: Pieter Visser

Posted: Mon Apr 14, 2014 8:51 am
by Pieter001
I look forward to get these sections completed :D

Re: Pieter Visser

Posted: Mon Apr 14, 2014 9:00 am
by Pieter001
So on Saturday I completed the layup on the lower right engine mount. I did all 20 layups in one go and I think I dreamt of the smell of acetone, but I can't be sure, think I was maybe high on acetone :lol:

So measured out the area and using a Stanley knife I cut and lifted the peel ply. Thereafter the sanding came and then the layup. As important as the sanding is to ensure that you get no air trapped anywhere in the layup.

After the layup was completed the area was covered with peel ply. Result is good and the curing went well :D

Re: Pieter Visser

Posted: Mon Apr 14, 2014 9:06 am
by Pieter001
My next step will be to do the top engine mounts. I think it will be easier to do these before the gear humps or vertical stab is fitted.

If all goes well the long weekend will be the perfect opportunity to get this done :wink:

Re: Pieter Visser

Posted: Tue Apr 22, 2014 9:47 am
by Pieter001
Last week was spent cutting glass... Sunday I finished all the cutting, this is for the top engine mounts and the gear humps fixing :D While I was at it, I thought I'd get it done and I'm happy I did this.

So on Monday I set to work on the upper gear mounts, after turning the fuss upside down. I spend 7hrs completing the layup here!! It was the toughest bit of the build to date. My fuss was low, which means I had to crawl in and out. I'd suggest one make a higher stand for this purpose as I could feel it in my knees after 7hrs :(

I'm happy with the end result, although I thought I'd finish both upper mounts over the long weekend... Realising that things take longer than I imagine and still getting to grips with this.

Re: Pieter Visser

Posted: Thu Apr 24, 2014 9:20 am
by Pieter001
Yesterday I received my much awaited laser level!! What a cool piece of equipment, a must have in my opinion :D

Re: Pieter Visser

Posted: Thu Apr 24, 2014 8:51 pm
by whisper a treat!

Re: Pieter Visser

Posted: Tue Apr 29, 2014 8:21 am
by Pieter001
This long weekend I did the last of the engine mount layups. I found this upper layouts the most work and I look forward to finishing this part of the build. In saying this, I did not complete the build, but put down a few layers. This Thursday I plan to continue this work and maybe finish it :D

I also started cutting the polystyrene, but more later...

Re: Pieter Visser

Posted: Tue Apr 29, 2014 8:34 am
by Pieter001
I, or rather we, tried our hand at cutting the polystyrene, which really is not bad once you get the hang of it. We started on the rudder as this is the smallest and simplest of cuts in my opinion.

BUT here is my advice...

* * N O T E * *
Whisper can cut your polystyrene and I would suggest one makes use of this option for the following reasons;
- It is simpler
- Time saver
- Cuts are perfect (I think a CNC is utilised for this)
- Zero waste because they get it right first time
- You need good help to cut with you. Not a one man task!!

If you go at it yourself, no problem, it is actually a lot of fun. My son helped me cut and I found him the best talent in the family. My wife and I are in too much of a hurry and get it wrong, while Emil (my son) get it just right. Our cuts are almost perfect, but it took a bit of getting the hang of it. My advice is...
- Cut slowly, don't force the wire to move, just let it go at the pace it is happy to
- Clearly mark progress positions on all the templates (pro-rata to the size of each) and discuss the cut so both parties KNOW exactly how the cut will progress
- Talk and indicate progress during the cut continuously and stay synchronised as much as possible, especially around any corner or curve
- Do the complete cut in one go, DO NOT STOP as you'll see this on the cut when you're done
- Consider a practise run before you do the actual first cut (have spare foam for this!!)
- CHECK your template alignment before each cut, as you cannot undo a cut

It is a lot of fun and great bonding this to do with your son, if you get it right :D NOTE that you will likely make mistakes and this is human, so don't be too hard on your cutting partner, as this can obviously ruin a friendship :x

As mentioned, check your template alignment! I got one cut inverse :( The middle template actually does need to be marked with progress indicators on both sides :wink: !!

To check the blocks for right angles, I used the laser level, which I found a hundred and one uses for!!

Re: Pieter Visser

Posted: Tue Apr 29, 2014 8:49 am
by Pieter001
Marking the centre line on the blocks and then attaching the templates with dry wall screws. My hot wire is also visible and must say that it worked a charm :D

I used a coffee table and simply clamped 40x40mm roof "brandering" to clamp the foam block in for the cut. I found this to work perfectly :D
Centre line
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Template on 1
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template on 2
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