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Commision for two friends. They specifically asked for the flowers, which I was worried about, as it's been a long time with no representational painting for me, but in fact I'm really pleased with the ened result. Luckily so were they!
Excessive temperature rise in reflow soldering will cause uneven wetting, which will inevitably cause the device to shift during the wetting imbalance process. Excessive wind cycles can also cause device displacement. Try to choose a reflow soldering machine with a temperature of 12 or more. Chain speed, temperature rise, circulating wind, etc. are strictly controlled items, that is, to meet the reliability requirements of welding cost, and to reduce or avoid the displacement of components, try to control to within the required range. Generally, the 2% range of the pixel pitch is used as the control value.
cluboxigeno.com/analysis-of-micro-pitch-led-display-techn...
Superb 1712 Nuremberg Brass Nested Cup Weight
This is a beautiful set of nested or cup weights. It is solid brass and contains 8 weights. It is very rare to see a set of cup weights which still retains all the components like this.
The largest weight is 8oz (or ½ lb), and the rest weights are as follow: 4 oz, 2 oz, 1 oz, ½ oz, and 2 x ¼ oz, making up a total of 1lb. This set of weight is highly decorated. It is stamped with the year “1712”. There are other stamps such as the “watch-tower”, the “shamrock”, the “star”, and the many letters.
I would suspect the “watch-tower”, the “shamrock”, the “star”are the signatures of the makers. The “watch-tower” is also stamped in the inside bottom of the largest weight, suggesting that it is the signature of the master caster. The other two signatures are presumably of his apprentices or associates who participated in certain parts of the making process.
As this set of weights requires many procedures, it is understandable to conjecture that it was made by many casters. I have no clue what the letters “N, Z, X, T, O, M, M, V, R, D, B, H, Z” stand for.
•Height: 3 cm 8 mm
•Diameter of the outermost weight: 5 cm 2mm
•Diameter of the outermost weight with clasp: 6cm 7mm
Project 365: Day 41
The string-pod! Man, I just love McGyver photography equipment. So cool, so simple, and so cheap.
And this one didn't even need duct tape or gum. Or gum wrapper.
Para reforzar el muelle y evitar que se estire hasta deformarse, le he puesto un cable interno de acero, unido con un pasador. Todo esto queda oculto en el interior del tubo una vez montado.
A photographic record of the making process involved in creating a replicable component.
From foam model, to plaster mould and slip casting to kiln firing.
These were build solid, their forms tidied up, then dug out like a canoe. Their precise location in the final sculpture is undefined.