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shalafi4 posted:For diamond electroplated laps? 600 grit Diamond sintered lap from adamas I run at about a 10 on my ultratec, I really only polish using a zinc+/ba5t dual band lap and I run that at 13 haha. Not sure what those RPMs are though, the highest it can go is 16 but I know it's arbitrary numbers. I got this email from joe rubin at UT years ago: There are no “official” speed settings that correspond to the numbers. We adjust the high output speed to about 1200 RPM, but for a while before that it was set at 1400 RPM (so there’s some variability from time to time). Recently, some faceter was moved to test it out and sent us this report: Ultra Tec Dial RPM's for V5 1- 0 9- 765 2- 75 RPM. 10- 865 3- 170. 11- 965 4- 265. 12- 1065 5- 365. 13- 1165 6- 465. 14- 1265 7- 565. 15- 1365 8- 665. 16- 1465 Now, that was on his machine… So, for what it’s worth…
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Nov 1, 2023 17:43
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My v2 is on an ultrapol industrial polishong base but unfortunately the tachometer lcd is missing a few lines so it isn't very readable.
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Nov 1, 2023 18:57
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My friends dad is crafting jewelry. He’s retired and spends a lot of time on it, and has amassed a huge inventory. At least 8 full suitcases worth of necklaces, bracelets, and pendants. I’m trying to see if there’s any way he can sell a decent amount, since there’s probably thousands of others doing the same thing. He’s made a brand, made tags and business cards. He’s tried to find a niche like making custom pieces for female dancers. Not sure if there’s a way he can stand out from the competition.    If anyone has tips or advice, i’d appreciate it and pass it on to him.
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Nov 1, 2023 23:52
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Could anybody recommend a lacquer for coating jewelry? There are so many options and I'm pretty overwhelmed. I'm in the US, if that helps any. My wife's skin turns grey in contact with sterling. 
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Nov 9, 2023 16:29
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Clear nail polish is what we used to use back in the day. There are probably real options now? (Protip: top coat is what you want, not base coat.) Since it's silver, maybe you could get it rhodium plated? effika fucked around with this message at 04:01 on Nov 10, 2023 |
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Nov 10, 2023 03:59
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Ever wonder what happens when a giant sapphire is crushed in a hydraulic press? https://www.youtube.com/watch?v=4nP7FUNs6Ss
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Nov 18, 2023 21:45
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I doubt if it counts, but I made a ring out of a silver spoon and prosthetic eye 
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Nov 29, 2023 07:06
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Sure, why not? Welcome aboard. How did you affix them together? Looks neat.
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Nov 29, 2023 08:06
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Scarodactyl posted:Sure, why not? Welcome aboard.
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Nov 29, 2023 12:38
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I gotta say out loud that I think gold work is bullshit and I greatly prefer working with platinum. What is this, flux? gently caress off! Oh you can just gently melt prongs without trying? gently caress off! Gimme the welding glasses and let me get to worrying-about-burning-diamond temperatures! The solder goes where you put it, not wherever it wants to go!
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Dec 20, 2023 16:06
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Soul Dentist posted:I gotta say out loud that I think gold work is bullshit and I greatly prefer working with platinum. What is this, flux? gently caress off! Oh you can just gently melt prongs without trying? gently caress off! Gimme the welding glasses and let me get to worrying-about-burning-diamond temperatures! The solder goes where you put it, not wherever it wants to go! man I just had one of those super brief trama flashbacks. From welding Platinum thermocuple wires 0.004" dimeter Platinum thermocouple wires. Any end ball bigger than 0.012" ? cut it off and try again. gently caress I hated that project.
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Dec 20, 2023 16:13
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Lol I work a lot in .6mm wire but that's a whole different ball game
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Dec 20, 2023 17:08
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Soul Dentist posted:Lol I work a lot in .6mm wire but that's a whole different ball game yea the threshhold for a "failed" ball on the join is ~ 0.3mm "feather light touch" was an understatement for it
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Dec 20, 2023 18:16
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On a scale of 1 - 10 how bad of an idea is bronze jewellery?
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Dec 20, 2023 18:33
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With 1 being "bad" and 10 being "used for literal millennia and prized for its warmth, strength and workability" I'd say 10
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Dec 20, 2023 20:42
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Soul Dentist posted:With 1 being "bad" and 10 being "used for literal millennia and prized for its warmth, strength and workability" I'd say 10 Thank you, I've got some bronze material I don't know what to do with so I might take a crack at making something super crappy with it. Sorry for the dumb questions, any tips you wish you'd found at the beginning of your jewelry making journey at all?
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Dec 20, 2023 20:52
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Jewelers break, melt, burn, oxidize and otherwise gently caress up precious materials all the time. It's part of the process, and no matter how careful you are sometimes you're gonna lose something expensive. Especially if you're me lol
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Dec 20, 2023 20:54
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Don’t forget the part where you can drop poo poo and never find it again. That’s an insanely cool part about jewelry making.
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Dec 21, 2023 00:17
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Oh yeah the tiny little ping of an important piece achieving escape velocity off your tweezers will haunt you
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Dec 21, 2023 00:20
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I just lost a ~30ct stone that was being prepped for final shooting after I finished cutting it.
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Dec 21, 2023 00:27
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Did you check the pickle pot on your coworker's bench four seats away? Cause I've found stuff there. Also when I was first starting I was soldering posts onto stud earring baskets and I had a little bag of ten completed. I rested my foredom handpiece with a rubber polishing wheel in my tray and went to grab a bigger bag when my foot hit the go pedal. This led the rubber wheel to grab the little baggie, tear it open and fling it and the contents directly up at like fifty miles an hour. It took three weeks but the department eventually found them all. The furthest distance between two found earrings was more than ninety feet.
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Dec 21, 2023 00:55
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And here I was, merely well acquainted with the sweep the floor under your bench and hope you sweep up the diamond too technique. I've got a lot to learn it seems.
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Dec 21, 2023 01:31
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I had an emerald slip into one of the prong openings of an outlet on a power strip. I don’t know what’s crazier: that it managed to fall in there, or that I was desperate enough to check.
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Dec 21, 2023 02:01
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Just use a straw and get ready to bite down
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Dec 21, 2023 02:59
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There’s a small cobalt spinel that’s been lost in my carpet for (going on) 2 years now 🥲
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Dec 21, 2023 03:11
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Cobalt spinels are fluorescent--must be buried pretty deep if that didn't turn it up.
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Dec 21, 2023 03:20
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Scarodactyl posted:Cobalt spinels are fluorescent--must be buried pretty deep if that didn't turn it up. it’s absolutely escaped me. i’ve done UV light, vacuum with a stocking over it, but still…gone
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Dec 21, 2023 04:49
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A friend of mine's dad does a lot of dealing in precious stones and at one point he lost a small baggie of tiny diamonds in a washing machine because he forgot to take it out of his pants pocket.
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Dec 21, 2023 20:19
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Oh god, it was like one of my last days working at a jewelry store and I walked off with a 2ct princess cut in my purse, and my boss called me looking for it like two hours after I got home. It was cool because we all ran diamonds around like that because we worked in the diamond district, but it was still embarrassing as hell. I shudder to think how poorly that would’ve gone for me if I hadn’t built up enough credibility at the store at that point to buy some latitude. Plus, everyone knew by that point that I hated princess cuts with my whole heart and soul, so the idea that I would’ve stolen one was ridiculous. I would’ve stolen one of the OECs from the safe!
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Dec 22, 2023 01:34
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Nae posted:Plus, everyone knew by that point that I hated princess cuts with my whole heart and soul Why did you have to set them
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Dec 22, 2023 03:02
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Nae posted:OECs Thank you for this term; now I know why my mom's vintage diamond looks so much cooler than any other diamond. I've always thought diamonds were boring and it's because they lacked the fun firey rainbows that the Old European Cut ones have!
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Dec 22, 2023 03:57
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Soul Dentist posted:Why did you have to set them No I just hated them for their giant tables, fragile girdles, heavy pavilions, busy facet patterns, limited prong options, and dated style. I hate them way more now that I have to set them. effika posted:Thank you for this term; now I know why my mom's vintage diamond looks so much cooler than any other diamond. I've always thought diamonds were boring and it's because they lacked the fun firey rainbows that the Old European Cut ones have! Glad I could help! I love OECs and their elder squared cousin, the Old Mine Cut (OMC). I’m also a fan of the transitional cut, which came after the OEC but before the modern brilliant—hence the name. They’ve got some of the fire of the older style cuts, but they have the precision and brilliance of more modern cuts to back it up. Really, what’s not to love? Nae fucked around with this message at 05:44 on Dec 22, 2023 |
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Dec 22, 2023 05:41
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Recently got my first OEC and it has so much charm and character. Love this chunky faceted boi
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Dec 23, 2023 05:50
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Soul Dentist posted:I gotta say out loud that I think gold work is bullshit and I greatly prefer working with platinum. What is this, flux? gently caress off! Oh you can just gently melt prongs without trying? gently caress off! Gimme the welding glasses and let me get to worrying-about-burning-diamond temperatures! The solder goes where you put it, not wherever it wants to go! This is really funny because I feel this way about gold over silver. I haven’t done much platinum work!
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Dec 24, 2023 17:59
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Silver is a step further, I just don't have to deal with it at all lol
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Dec 24, 2023 18:43
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I may have a few chunks 7" square x 1.125" thick of labradorite soon from a miscut on a countertop. I have no rockworking knowledge, but a fair bit of woodworking knowledge and was wondering if my normal HSS woodworking lathe tools would be able to (slowly) cut it? I was thinking of turning some coasters or little lamp/planter bases on the lathe. I could also get carbide scrapers. Or is in general rock cutting done more through abrasives than steel?
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Dec 26, 2023 17:00
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Yeah, rocks have to be abraded. Labradorite isn't super hard but at 6 it is likely at least as hard as your steel. It is also somewhat brittle and cleaves, so I think it would react quite poorly to woodcutting tools.
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Dec 26, 2023 19:34
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Disclaimer: I have only dabbled in cutting and shaping rock, there's much more expert experts here: Labradorite is around 6 to 6.5 moh's hardness so your tempered HSS steel tools might cut it - tool steel is at like 4 but I'm not sure how much harder HSS is. But, rock cutting is done with a constant stream of coolant (water, or water + additives, typically), and you might not want to have water spraying around on your wood lathe? Without it you'll get very high heat on your tool surface very fast and destroy the temper. I'm not sure if the water is also needed as a lubricant for the cutting action. I'm also not sure if you can get away with a particular angle of attack that won't produce the equivalent of tearout: all the rock cutting stuff I've used has abrasive diamond wheels, not sharp tools. You can run a diamond wheel saw against your thumb without cutting it because it's actually got a very thin flat surface going against the stone, not a sharp edge. Secondarily: Labradorite has an orientation in which you'll get the pretty colors, and a slab may not be oriented in the way you want it if you start carving into it. It's composed of many flat layers of stone glued together basically, and you get the pretty shinies from having that flat surface be the smooth surface light reflects off of. You should expect if you carve into it to have mostly angles that don't give you the maximum chatoyancy that the ideal orientation would give you. All the above said, you could still give it a try with a spare tool you don't mind having to re-grind, and see what happens. e. based on this chart you need tools of probably at least Rockwell 70 to stand a chance. Leperflesh fucked around with this message at 19:39 on Dec 26, 2023 |
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Dec 26, 2023 19:35
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Leperflesh posted:all the rock cutting stuff I've used has abrasive diamond wheels, not sharp tools. You can run a diamond wheel saw against your thumb without cutting it because it's actually got a very thin flat surface going against the stone, not a sharp edge. The professor that taught our faceting courses would do that all the time and alarm the students Anyway seconding the orientation. It might also be a pain in the rear end to polish? Flat surfaces are annoying and I've never managed to get an actual good polish on a piece of labradorite on a cabbing setup. Maybe some other techniques would work better though
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Dec 26, 2023 20:18
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Xun posted:I've never managed to get an actual good polish on a piece of labradorite on a cabbing setup. Maybe some other techniques would work better though
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Dec 26, 2023 20:40
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