Hey Ervin, I’m also in the contest and I haven’t started yet, but I figure why not help out the competition in the spirit of BLF karma?
When you’re soldering 7135 chips together, try taking a TINY bit of superglue and bonding the stack together ahead of time. Saves a ton of frustration. Also some good tweezers like you can get from mountainelectronics.com
One more thing, if you very carefully bend the three pins on the chip down ahead of time on all but the bottom chip in the stack it’s way easier to get the solder to jump from pin to pin.
This is a really interesting thread Ervin. Just two tips you may not have dug up from the volumes of DIY posting that goes on here. One member, I think maybe Djozz but can’t remember and couldn’t find the post if I did, suggested this method and I used it successfully on a recent mod. Epoxy the chips together with hi temp epoxy(JB weld works) and weave fine wire around/between the pins.
The second tip is to use the dip switches to control the gate pins only and use a second high power switch for main power. This idea for the amc 7135 has been around for awhile but if you are new to using them you may not have seen it.
onetrickpony,Rufusbduck thank you both, super advices. I guess this are the type of benefits on an very friendly and with a lot of talented and experienced members around.
thanks to both of you it looks like driver going in a revision…
This is one seriously cool project black hole time sucking project(I like that) I’m enjoying your imagination both on paper, in copper, and on the keyboard. Just don’t lose your job over it.
Great work on the radiator design Ervin. Play doh as a modeling form. Copper is hard to work since it gets hot when you grind it so I’ve had tender fingers too. Posting is nearly as much work but not nearly as much fun.
That’s a bunch of work, way outside the box thinking, and very clever sourcing with imaginative manipulation of the pieces parts to make them do what you envision. Well done! How you come up with this is beyond me, dream?
Gee willikers Batman, that’s labour intesive! That would have to be the most technical hand made head I’ve ever seen. I hope it turns out to your liking
Great job so far. I love how original it is. And the use of copper to surround the head of the metal bolt is just awesome.
And I can really relate to some of the things you are thinking about. Like how good it is not to have everything planned 100% because then you can be creative and come up with new ideas. And how that makes you fear to do something that cannot be undone if it does not work.