#video on #electroplating #3D-printing in “PVB” and smoothing with isopropanol
on 02025-07-02#PDF of the nickel plating handbook #electroplating #electrolysis #manufacturing
on 02024-11-20#video on nickel #plating at home in a glass jar #electroplating #toread
on 02024-10-18#electroplating pennies and nickels in lime juice with spent batteries. #electrolysis #materials
on 02024-07-05#electroplating bath #materials recipe: 5% vinegar, 3% hydrogen peroxide, mixed half and half, heated in the microwave until it steams, used to oxidize a copper scouring pad to copper acetate, but don’t let the solution get too concentrated, and apply a minimum of ½V. #electrolysis #bootstrapping
on 02024-07-01#video on #electroplating: 200g blue vitriol (Zep root killer), a drop of HCl(aq) (Klean Strip concrete etchant), 50mℓ H₂SO₄ (Zep drain opener), 950mℓ distilled water, and an unspecified brightener not shown. He plates at 0.4 volts, getting about 150-400 milliamps on a Star Trek TNG communicator badge. #electrolysis #materials
on 02024-06-10#electroplating with gold after #3D-printing #video #manufacturing #toread
on 02024-04-05#3D-printing and #electroplating #tutorial with graphite. He’s using an LCD SLA printer to get nice smooth prints and graphite spray paint, but shows that some graphite paints are not compatible with some automotive body work putties, because the paint cracks. He’s measuring 12.5kΩ between points a few centimeters apart, which is similar to what I get with a pencil on paper, but after he burnishes it with a towel, he gets only 5kΩ. To burnish his Benchy he tumbles it in walnut shells for four hours. He uses an unspecified commercial bright acid copper electrolyte for the initial plating, using coffee filters for the anode bags on his copper anodes. He recommends using a constant-current power supply with 1A/dm² while rotating the workpiece, but he suggests also using the voltage (0.6–1.0V) to tell if your current setting is right! He gets a lovely mirror finish with his trade-secret electrolyte composition, but then sands and buffs it. Before plating gold, nickel, or silver over the copper, he suggests galvanic degreasing, using a stainless steel anode and 6V; he applies gold with a galvanic brush (electrolyte not disclosed) and 6 volts. #manufacturing #bootstrapping #video #electrolysis
on 02024-04-03#Alpha-Phoenix first-surface mirrors. #optics #video he’s using the silvering process from the Tollens #materials test (silver nitrate, lye, ammonia, and a reducing sugar). Probably this process would be useful for #electroplating non-conductive objects as an alternative to graphite paint. He prints some things in an unspecified plastic with FDM #3D-printing, sands them, applies a two-part epoxy filler (“XTC-3D”) to smooth the surface, and silvers it by spraying precursors from a commercially-bought silvering kit onto it. To keep the resin from dripping off before it cures, he rotates a part slowly on a slanted axis so that it drips back to where it started. This introduced errors far too large for #optics. To try to silver the surface evenly he added a surfactant. In one batch, his epoxy reacted with one or more of the sprayed precursors, getting silver but with a terrible surface finish. In fact, that kept happening afterwards; he found that he had to cure the resin indoors (heat? humidity?) and needed to have the resin component ratio skewed toward component “A”.
on 02024-04-03#Prusa-3D #electroplating after #3D-printing, with some simple instructions but no electrolyte recipes. #video
on 02024-04-03#Clough42 #electroplating with nickel to prevent rust. He’s using 2ℓ vinegar and 1 tbsp salt, strips of nickel he bought off Amazon, using 3A through about 8000mm² of nickel strip to make his nickel acetate bath, without anode bags. He got 26 volts at 3A and 18 volts at 2A so I guess there’s a lot of ohmic losses in his bath, which dropped over time. Eventually he dropped the current to 2A because he was worried about melting his plastic tub. After a couple of hours he got noticeable uneven nickel deposits on the cathode. His nickel deposits on his nickel cathode were not very smooth and easily came off. On copper they did adhere. He made the mistake of trying to use vinyl gloves with acetone to clean his workpieces. In the saturated bath he got 6.3 volts at 3 amps when he was plating his first (steel) workpiece, which dropped to 5.5 volts when he moved the anodes closer. Half an hour gave him a coating that survived motorized buffing. Top comment by the current president of the National Association of Surface Finishing trade association explaining why you shouldn’t do this. #manufacturing #video #plating
on 02024-04-03#video on simplified #electroplating (copper, nickel, or zinc) with vinegar and salt. Comes strongly recommended. #materials
on 02018-11-04