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And to answer some questions: I mostly make gongs, as in the musical instrument. Recently I had an opportunity to get some material from Germany. It came already cut into circles (80cm diameter) and with a mirror finish. Really nice stuff. I have to cut my own circles and I can only get mill finish from my US suppliers. The discoloration from heating is desirable, therefore it must be polished beforehand. Keeping it from getting scratched during production is something I always have to be conscious of, but it is not that difficult. With summer coming, I'm more worried about my sweat dripping onto it!
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Thank you everyone! Sorry to take so long in replying. So it looks like I need to use a car buffer after sanding to a high grit. First with a course compound with a "cutting" wheel, and then the buffing wheel and compound, correct? Bigfoot - Where do you get the fine grit sanding discs for the orbital sanders? I can only ever find up to 320. I find a random orbit sander to be quite fast, although the discs don't last very long. But if I buy in bulk then it's worth it.
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I buy copper alloy sheet (bronze, brass, nickel-silver) and make things out of it. The metal usually comes with a mill finish. That is, kind of shiny but with marks and light scratches (sometimes not so light). I'd like to polish it to a mirror finish before I start working it. For me, this would make more sense than polishing/buffing afterwards. I know this has been asked probably a million times, but what would be the most economical way to achieve this, given that I currently have no specialized equipment for such a task, and taking time into consideration as well? I've wet-sanded up to 1500 grit a few times, and have never quite got a mark-free surface. I'd be happy to start at the Harbor Freight level. Thanks!
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Custom Dies Compatibility
RyanMark replied to RyanMark's topic in Power Hammers, Treadle Hammers, Olivers
c4697df5ff37dd6c3a7c68eb36b7b1e4 -
Custom Dies Compatibility
RyanMark replied to RyanMark's topic in Power Hammers, Treadle Hammers, Olivers
I emailed Little Giant about this, but while I'm waiting for a response, can anyone tell me what the maximum diameter cylindrical die could be installed and still clear the guide? On a 100 lb. -
Custom Dies Compatibility
RyanMark replied to RyanMark's topic in Power Hammers, Treadle Hammers, Olivers
I guess I thought that, for example, the Little Giants had rectangular guides which would only allow a comparably small cylindrical die to be installed, since it retracts up into the guide. But I looked at more pictures and see that the guide is square. Thanks, guys. -
Attached is a picture of a gentleman in Wuhan China forging out bronze plates. I believe the anvil has a shallow depression, and the die is cylindrical. Which power hammers could be outfitted as such, besides the self-containeds? I know some hammers are sensitive to changes in tup weight, stroke, etc. Thanks!
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Hammer Recommendation
RyanMark replied to RyanMark's topic in Power Hammers, Treadle Hammers, Olivers
right on -
Thanks, Basher. I looked at the Bradley Compact today, and it doesn't have enough throat clearance. The smith who owns it is also of the view that a smaller hammer should work fine. The thickness will just have to be checked as I work.
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Thanks, Andrew.
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I've been reading up on Bradleys, specifically the Bradley Compact. A 100 lb version might be available close to me. The small amount of literature I've found says that this hammer has an adjustable stroke depth. I wonder, will this work?
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Hammer Recommendation
RyanMark replied to RyanMark's topic in Power Hammers, Treadle Hammers, Olivers
It was said that the self-containeds are more controllable than other types. Plus the only type of hammer I've used was a Nazel 2B. I didn't know they were less efficient. I'm drawing out circular bronze ingots into plates. Maybe I don't need the finest control. Never used a mechanical hammer so I don't know. If I was able to afford a hammer right now, I'd just pick up a 100 lb LG when one pops up for sale. But I'm thinking of a Kickstarter campaign to get a hammer, so I might as well get a nice new one. And, I can't plan the campaign around a used hammer that may not be available if and when the campaign is successful. A delay in obtaining a hammer and making the backers' "rewards" is something I want to avoid. Which mechanical hammers are currently in production? -
Hammer Recommendation
RyanMark replied to RyanMark's topic in Power Hammers, Treadle Hammers, Olivers
Will look into those, thank you -
What is the largest, currently in production, self-contained air hammer that I could run off of 220v, single phase, 50 amp breaker? And do they come stock with a single phase motor? I would like to do without a phase converter. Thanks!
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Thanks, InFire, I had not seen that. I wish I had a team of strikers.