Recent content by borland

Good points. For any build over 60 amps, I think you'd need plenty of cooling air flow in order to use those 80A relays. Sourcing appropriate sized terminal rings is not easy. I found Digi-Key.com the best source, where you can use their search filters to locate parts from the catalog...

No. I don't want anyone putting graffiti on my graffiti art. Nothing very complicated here that you can't duplicate very quickly. Besides, the Autodesk's 123D Design free software has some bugs that create problems modifying existing drawings, so it's best to start with basic shapes when...

WiFi... Cool! I purchased another eBay 80A relay from China. Similar to the one of my earlier post, same overall size but with a clear cover. Same 12V coil. Appears to be from the same factory too. Only significant difference is the coil resistance which measures 52 ohms. So, it's coil...

something like this? I'm kinda busy now, so the answer is no, not now. Don't know what that Z-corp printer does or what its process is. I can't find anyone that can make a decent print to my dimensions, so I'm not likely to spend any more time with this project.

That's what I thought Glenn. The contacts look pretty big too. Most relays have contact resistance of about 0.20 ohms (other than silver alloys). If you consider contact resistance rating of this relay, and the power lost across the contacts ( I squared * R), with a 75 amp load the power...

I was scanning eBay for some spa relays, and came across several 80 amp relays. You can find them with eBay search "Power Relay 80A". Just got this one in the mail from China. I paid $18 with shipping. It's not the one I ordered from the listing, with a screw mount; what was shipped has a...

Another source of heat is the terminals. For high current builds, using blade terminals is probably not a good idea. I've found blade terminals for 8 AWG wire, but not any with current ratings. Better to use ring terminals and screw studs. I'm extensively using ring terminals with the...

For the 12V coil current..... you need to investigate the power supply ratings... The Plus board's on-board power supply is a MicroPower AC/DC converter MPM-04D-1205E. See datasheet. http://www.micropowerdirect.com/PDF%20Files/Datasheets/ACDC/MPM/MPM-04E-Datasheet.pdf For +12VDC, datasheet...

For 30 amp build, you might want to consider the Magnecraft W199X-7, open contact, but release time 30ms and rated at 40 amps. http://octopart.com/w199x-7-magnecraft-25415 http://datasheet.octopart.com/W199X-7-Magnecraft-datasheet-11409.pdf If the car's on-board charger delays pulling current...

Anyone interested in a small J1772 tea cup? Actually, I was playing with the 3D CAD program and came up with this... it's supposed to be a J1772 plug dust cover. I'm still working on the 3D printed J1772 holster at a low cost. ---------------------------------------- - Update May 6...

With a little effort, most parts listed can be sourced elsewhere: http://octopart.com/bm6032pq-cooper-7612 Just be sure to check manufacture's maximum ratings to ensure your not buying parts rated at the supplied charging current, otherwise useful life will be greatly shortened.

Chris is just selling the controller (built/kit) which, depending on how configured, may or may not include the LCD display & RTC. In addition to the controller, you will need to buy additional parts that are sized to suit the charging current requirements of your vehicle or limitations of the...

How about mounting the contactor on a bracket so it fits inside the box sideways? You didn't say what contactor your using or its size.

I'm still waiting for a reply for information about printing specifications from Shapeways. I don't see them as being a supplier that would be inexpensive. I uploaded a file earlier to Shapeways server and the server said the part passed all test for printing and showed a price quote of $65...

Thank you Smidge204! The part arrived in the mail today. Looks great. Fitup with the J-plug is good; plug snaps in place with no interferences. The screw hole sizes and screwdriver access are good also. Here's some photos showing fitup with my J1772 plug (manufactured by ITT)....you can see...