Search found 67 matches

by federico muelas
Mon Feb 14, 2011 6:57 am
Forum: General Discussion
Topic: Help on calculating Wire Gauge for outdoor screen
Replies: 6
Views: 1108

Re: Help on calculating Wire Gauge for outdoor scr

Hi haklesup, I was thinking more in something like the rubber circular connectors from Amphenol (http://www.newark.com/jsp/search/productdetail.jsp?SKU=61F1749&CMP=AFC-GB100000001) . They fit from #14 to #18 AWG wire. They fit really well on the conduit we are using and once the pair is connected th...
by federico muelas
Sun Feb 13, 2011 7:20 am
Forum: General Discussion
Topic: Help on calculating Wire Gauge for outdoor screen
Replies: 6
Views: 1108

Re: Help on calculating Wire Gauge for outdoor screen

Hi haklesup , jwax and dacflyer, Thanks a lot! This is for a custom made LCD outdoor display for a Public Art Project for the New School of Architecture at UNM, in Albuquerque. You can check the project at www.federicomuelas.com/blue_flower Stranded wire will be preferable since we need for the cabl...
by federico muelas
Sat Feb 12, 2011 12:47 pm
Forum: General Discussion
Topic: Help on calculating Wire Gauge for outdoor screen
Replies: 6
Views: 1108

Help on calculating Wire Gauge for outdoor screen

Hi Everyone, I have a technical question regarding calculating the wire gauge needed for a large size custom made screen I’m working on. This is the dilemma: The screen uses a maximum of 9.2 amps @ 120 VAC, Single phase, the length of the cable will be 150 feet. If I calculate the gauge needed it ca...
by federico muelas
Sun Sep 21, 2008 6:28 am
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

Thanks a lot Dyaker!!! this is fantastic!! the first working prototype of one of the 200 pix panels should be ready in about one or two weeks and then we can try for real. Rob, I got two of each one of the circuits (the second one for free!, a nice surprise), would it be of any use if I assemble the...
by federico muelas
Mon Sep 15, 2008 5:40 am
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

Hi Guys,
Rob, welcome back!, let me know if you need anything for the hardware test, components, parts, PCB or assemble something to help you, etc.
Thanks a lot! and thanks to your brother too!!

Dyaker,
I used USPS so I think is still on its way. thanks!

Fede
by federico muelas
Sun Sep 14, 2008 10:18 am
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

Hi Dyaker, A test program will give us plenty to keep us busy i think. I should get the PCBs this week but the PIC code hasn't been written yet so I think the proto board won't be ready to test in at least two weeks. I totally understand about the licensing, let me go over the UNM contract again and...
by federico muelas
Tue Sep 09, 2008 5:35 pm
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

Hi Guys,
Thanks
Dyaker, it has a serial port, right (it's amazing that you can still find them on computers).
Rob, try to make the best of it... I guess... read..walk...sleep...
Thanks guys!!
best
Fede
by federico muelas
Tue Sep 09, 2008 7:14 am
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

Hi guys, Rob, I finally sent the two boards to a PCB manufacturing company named pcb-pool (http://www.pcb-pool.com). They have some kind of sharing system that for the final production may not be cost effective but for the prototype is fine, they are about $80 each board in total, shipping included,...
by federico muelas
Sat Sep 06, 2008 5:56 am
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

Hi Rob, Thanks a lot! That sound's like a 007 agent mission... enjoy. you're right. I'll build them by hand and then once we know for sure that is the final board I'll send them out. I think we should stay with the single layer since there is a big difference in price between one and two layers, and...
by federico muelas
Thu Sep 04, 2008 2:59 pm
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

Hi Rob, I hope you're having a nice trip. After trying on the cnc we don't think we are getting the precision we need on the boards. This Tormach is a new piece of equipment they got at the School of Visual Arts where I teach and they haven't figure out the "right" way to do it yet. So I decide to u...
by federico muelas
Tue Sep 02, 2008 4:34 am
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

thanks a lot!
I hope you have at least some tome to walk around the city. It has to be amazing!
Fede
by federico muelas
Mon Sep 01, 2008 6:00 am
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

Hi Rob, Thank you thank you so so MUCH!! You're great! Say thanks to your brother too! We are setting up a new more precise CNC machine, the old one it may not have enough definition, so this Wednesday we will give it the first try. They work with Eagle Cad software directly connected to the machine...
by federico muelas
Thu Aug 28, 2008 2:54 pm
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

thank you so much!!!!
Fede
by federico muelas
Thu Aug 28, 2008 6:34 am
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

It sounds pretty interesting though. Just let me know if you want me to make any circuit on the CNC and you'll have it there when you're back.
Thanks a lot and have a productive trip
Fede
by federico muelas
Wed Aug 27, 2008 12:29 pm
Forum: General Discussion
Topic: help on DC-AC inverter for Public art Project. Thks
Replies: 168
Views: 41774

Hi Rob, I didn’t think of the running the test remotely but it’s a great idea. Thanks a lot to your brother too!! Philippians and Singapore whoa, I hope is a holiday and not a business trip. When you come back hopefully I’ll have the prototype up and ready, I’ll keep you posted. Actually Iâ€...