Trash80toHP_Mini
NIGHT STALKER
A few recent threads here and elsewhere got thinking, researching and reminiscing, always a dangerous combination. Dunno if it's an original approach, likely not, but here's an experimental process for you folks with prototyping equipment to try.
First, the story: I went to a small HS, where the juniors hosted and attended the senior prom. I wound up making the favors, which were a couple of hundred candles made in a set of plaster casts I made of the Knight from a Chess set. The process I'd come up with was a bit flawed, if you can imagine such a thing :
but I soon realized that the dipping process for making candles might come to the rescue. The rough casts had varying amounts surface nastiness from the spay can cooking oil release agent I used. Some the worst cases that come to mind were not all that different from the layer joints in printed ABS parts.
When I dipped the rough candles in a can of the melted wax I got an almost uniformly beautiful, glossy finish. This article got me thinking about applying that process to proto-printed parts.
http://hackaday.com/2011/12/16/welding-and-casting-abs/
Since scrap ABS filament and part rejects of various colors should be fairly readily available, why not dissolve a formulated mixture of white, black and whatever in MEK (or acetone?)to match Mac ABS colors (or clear?) and dip the rough parts in the solution to smooth out the layering imperfections inherent in the printing process?
Solvent, material mixture and percentages of final solution TBT upon proving the process using clear ABS for visual inspection and comparison.
Well, there it is, whatchathink?
p.s. solvent welding a metric @$$load of shiplapped parts together and dipping the assembly in a vat of PowerBook Gray solution germinated this bit of silliness.
p.p.s. If I never smell Lilac again it will be way too soon.
.
First, the story: I went to a small HS, where the juniors hosted and attended the senior prom. I wound up making the favors, which were a couple of hundred candles made in a set of plaster casts I made of the Knight from a Chess set. The process I'd come up with was a bit flawed, if you can imagine such a thing :
but I soon realized that the dipping process for making candles might come to the rescue. The rough casts had varying amounts surface nastiness from the spay can cooking oil release agent I used. Some the worst cases that come to mind were not all that different from the layer joints in printed ABS parts.When I dipped the rough candles in a can of the melted wax I got an almost uniformly beautiful, glossy finish. This article got me thinking about applying that process to proto-printed parts.
http://hackaday.com/2011/12/16/welding-and-casting-abs/
Since scrap ABS filament and part rejects of various colors should be fairly readily available, why not dissolve a formulated mixture of white, black and whatever in MEK (or acetone?)to match Mac ABS colors (or clear?) and dip the rough parts in the solution to smooth out the layering imperfections inherent in the printing process?
Solvent, material mixture and percentages of final solution TBT upon proving the process using clear ABS for visual inspection and comparison.
Well, there it is, whatchathink?
p.s. solvent welding a metric @$$load of shiplapped parts together and dipping the assembly in a vat of PowerBook Gray solution germinated this bit of silliness.
p.p.s. If I never smell Lilac again it will be way too soon.
.
