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Get familiar with the reaction system: Introducing the Reaction System
ND28F Ring-Radiator conversion progress...
From a sketch/alteration of a photograph:
I acquired a couple centers from my in-laws a couple weeks ago, and just now had time to have some fun with them. Due to the way they are made, they taper to a larger radius from the 3 tips to the tri-wing 'face'. I chucked the Dremel abrasive cutting wheel in the drill press to get the uniform leg dimension of 6mm longer than the tri-wing thickness. Once I got them cut down, it's apparent that this is a PERFECT FIT, and just had to be created. This set the tri-wing apex at about 3mm above the apex of the dome. I then removed the assembly screws in the ND28F-6 and counterbored the holes to insert them further. There is a stopping point inside, so they can only be driven in to a certain point, and makes them equal. Now the apexes were about 1.5mm apart. I thought this was good enough to proceed with the central anchoring dimple-point. I used the cutoff legs for the central anchor by drilling a hole in the center of the tri-wing. Arbitrarily, I inserted and set the tip length to 2mm proud of the 'wing, and it yielded a small ripple in the dome's surface of about 0.25". I played with the dome to see how it responded further, and it does start to deflect from round at a considerable distance further than that point. Being the standard 1mm Xmax guess, I felt this was appropriate.
Some more photos:
Test fit:
Clamped for glue curing:
And finally:
Testing to come...
Wolf
I acquired a couple centers from my in-laws a couple weeks ago, and just now had time to have some fun with them. Due to the way they are made, they taper to a larger radius from the 3 tips to the tri-wing 'face'. I chucked the Dremel abrasive cutting wheel in the drill press to get the uniform leg dimension of 6mm longer than the tri-wing thickness. Once I got them cut down, it's apparent that this is a PERFECT FIT, and just had to be created. This set the tri-wing apex at about 3mm above the apex of the dome. I then removed the assembly screws in the ND28F-6 and counterbored the holes to insert them further. There is a stopping point inside, so they can only be driven in to a certain point, and makes them equal. Now the apexes were about 1.5mm apart. I thought this was good enough to proceed with the central anchoring dimple-point. I used the cutoff legs for the central anchor by drilling a hole in the center of the tri-wing. Arbitrarily, I inserted and set the tip length to 2mm proud of the 'wing, and it yielded a small ripple in the dome's surface of about 0.25". I played with the dome to see how it responded further, and it does start to deflect from round at a considerable distance further than that point. Being the standard 1mm Xmax guess, I felt this was appropriate.
Some more photos:
Test fit:
Clamped for glue curing:
And finally:
Testing to come...
Wolf
Comments
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