yeah, there is a Japanese method where they burn the outer layer of wood to make it more resistant to weather (they use it for cladding)
the idea is that burnt wood can’t rot.
4 Likes
It not only protects against moisture, but also against insects.
1 Like
6 Likes
How could I miss this topic. Great Job.
And yes they do it every where, burning the wood for protection. Even more, it helps to protect against fire. It’s a real shield. We do/did learn this at school how to do it.
1 Like
4 raised beds for the greenhouse finished, let’s see how many there will be in the end. Now all that’s missing is the assembly of the dome…
8 Likes
Yesterday we organised a family barbecue and set up the Geodome on the side. Thanks to the many helping hands and conscientious preparation, it went faster than expected. Here are a few impressions of the result.
20 Likes
Love it. I want one.
4 Likes
out of curiosity, do you have an estimate of the time (man-hour) and cost it took ? not the elaboration but purely fabrication ?
Joy can’t be exchanged for hours of labor or measured in €, nor in $
3 Likes
I didn’t stop the exact time, I worked on it whenever there was time (since January). This is certainly too small an estimate:
This results in just under 30 hours of pure working time for this part without preparation, cutting film, sawing wood, …
Pure material costs of the dome are about the following, still missing the foundation (I don’t have the invoice yet) and the equipment (raised beds, water barrel, electrical installation, …)
As I don’t have much space in my garage “workshop”, I couldn’t process all the boards at once and had to buy some wood, process it and transform it into triangles and then buy new wood and start all over again. This makes the whole process quite inefficient (and has probably also reduced accuracy due to poorer reproducibility), as the advantage is significantly diminished by the many steps that have to be repeated (setting the right angles on the saw, …).
4 Likes
I’ve also put the deckchairs in for this purpose, as I’ve spent a lot of time just sitting there over the past few days, taking in and enjoying the shape. Later I can watch the plants grow 
4 Likes
it must be awesome in there under the rain !
1 Like
I have started to close the gaps between the foundations…
Does anyone know of a narrow, transparent, UV-resistant adhesive tape that holds well on LDPE film, with which I can seal the seams from the outside (and which is not too expensive for the required length?!).
3 Likes
Cotty, I love your work! I’m jealous - wish I could have the space to do something similar.
For your tape, I found this on Amazon, for repairing LDPE:
Enjoy your veggies!
Thank you! The tape is too wide and far too expensive for the required length over all the seams. I have started initial trials with a 25 mm wide glass fibre reinforced Tesa tape, which looks promising.
1 Like
Fan with more distance to the ceiling (with 3D printed spacer, see below)
8 Likes
@Cotty , make sure to secure your fan fixed to the ceiling. 3D printing is fine but can you rely on it 
% in the long run?
1 Like
I’d say, so long as the cable is secured by a hook or something, even in the case his 3d print started to delaminate and the fan decided to hit the ground, it would be saved by its cable ?
also, Deutsche Engineering. he probably used a safety coefficient of 8 or 10 on top of the safe dimensions
4 Likes
Here you are looking at where fan and slicer come together.
(Not even concidering UV rays over the years)
2 Likes
