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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
hehe.. i have a homemade flickering LED electric fire I made a while ago. Still works too, and uses shift registers to approximate a flickering effect.
One of the few projects I've built that still works.
There's nothing wrong with adding dead/unfixable/etc projects to a pile of random stuff on Ebay, someone might be able to use the parts and/or fix it for their own use.
Registered Member #1408
Joined: Fri Mar 21 2008, 03:49PM
Location: Oracle, AZ
Posts: 679
That's the real problem.....the hand winding. IMO you really have to make a machine to make them. Putting in hand wound work defeats the concept of money making (cheap labour is for nations not individuals). I would say that if the product is matching info-unlimited stuff you could fetch $100-300+ depending upon size, etc. A really big secondary would be a lot more (6 feet by 8", etc).
Now, if you rigged up a machine, the actual time would be really just a few minutes and your copper would be really all you have into it. You actually are talking up to about 500% profit once it's set up. A simple example is a 2" x 14" coil that wound with 26 and having an inch free space would cost YOU about $2-3 for PVC tube $14 in wire; (retail) or free if you sourced it from scrap. You could cut into those figures incredibly IF you found sources - but just from a retail standpoint, it would work!
Considering how many people face this issue and just don't want to invest the time; sales may be brisk. You actually HAVE to take the hand wound thing out of the equation to make money. A machine could turn out 4-6 an hour coils with little work on your part. Making them tight and pretty would get better over time as you found short-cuts.
If you needed money a 2" coil would fetch about 100 but the hand wound issue defeats profit elements.
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
quicksilver wrote ...
That's the real problem.....the hand winding. IMO you really have to make a machine to make them. Putting in hand wound work defeats the concept of money making (cheap labour is for nations not individuals). I would say that if the product is matching info-unlimited stuff you could fetch $100-300+ depending upon size, etc. A really big secondary would be a lot more (6 feet by 8", etc).
Now, if you rigged up a machine, the actual time would be really just a few minutes and your copper would be really all you have into it. You actually are talking up to about 500% profit once it's set up. A simple example is a 2" x 14" coil that wound with 26 and having an inch free space would cost YOU about $2-3 for PVC tube $14 in wire; (retail) or free if you sourced it from scrap. You could cut into those figures incredibly IF you found sources - but just from a retail standpoint, it would work!
Considering how many people face this issue and just don't want to invest the time; sales may be brisk. You actually HAVE to take the hand wound thing out of the equation to make money. A machine could turn out 4-6 an hour coils with little work on your part. Making them tight and pretty would get better over time as you found short-cuts.
If you needed money a 2" coil would fetch about 100 but the hand wound issue defeats profit elements.
Well, time is no factor gere though...lol. I am 15 with no job, and i am homeschooled.. But a maching would be really cool. i do not mind investing some money on a machine, but i am clueless how i should make one. How would i make it wind itself? Or is that something i should just continue to dream about? I could easily make a little jig to spin the coil for me, but other than that idk how i would make something like that. Got any ideas?
I actually think they would sell pretty good too because noone wants to spend the time or money on something that might not even turn out right. When i make some money and make a few coils, i will test one to destruction. Ill use like 2kw and a 40nf cap bank at 8kv .
Registered Member #1589
Joined: Sun Jul 13 2008, 06:40PM
Location:
Posts: 70
I'm making a 4 axis CNC (3'x4'x9" 4th is a lathe across the Y, being 4' long as well.) if that says anything. ;) Sales will be up soon for home made parts with exact specifications. :) Just thought I'd put a contribution in homemade parts thread. Parts will include PCBs. ;)
Registered Member #1408
Joined: Fri Mar 21 2008, 03:49PM
Location: Oracle, AZ
Posts: 679
Arcstarter: Here is the free standing "HOW TO BUILD A COIL WINDING MACHINE" pdf file. It's got some well evolved plans in it. But you could simply and build anything that works! I sincerely wish you good luck in this. and if you get it going; I may gamble and buy one myself to help a starving student
[Mod edit: file removed, it is not in the public domain.]
*Public domain from Library of Congress book download. There are other TC oriented books available in PDF format if anyone is interested: have a search for yourself.
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Would anyone buy these homemade items?
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