I have three (3) NEC CRT monitors that I want to get rid of I have two 21" monitors and one 19". What are these worth now days? I want to try and sell them...
... Jeff, eBay's completed auctions for '21 inch crt monitor' int that they are worth between $10 and $20 depending on the resolution supported. -Alan...
The annual robot show is next Monday if anyone is free that afternoon and wants to see some gadgets. The mechanical engineering students were given a pile of...
Jeffry Sampson
jsampson@...
Dec 4, 2007 7:28 pm
1258
OH MAN I love that show!!! Below is a link to the robot I made when I took that class. http://www.tcrobots.org/mtgpics/0004.htm It's the robotic head shown...
I found this story and I tracked down some links to details: http://euts.wordpress.com/2007/06/19/new-mini-petrol-engine/ ...
Jeffry Sampson
jsampson@...
Dec 6, 2007 12:35 am
1261
Neat. Here's something else, http://youtube.com/watch?v=RFdnGyj2pbM Jeffry Sampson <jsampson@...> wrote: I found this story and I tracked down some links...
... Dunno about that.. In my experience, to put 4 units of energy in, you must supply 5 - hence the typical 125%*C/I charge time. ... However, I've also read...
... I looked into doing a project like this a couple of years ago using a micro-turbine (jet engine) and a car that was converted to use battery's by a...
Alan said to pass along that he is not having Robot Shop of Horrors this Friday. -- Jeff Sampson...
Jeffry Sampson
jsampson@...
Dec 6, 2007 9:26 pm
1265
I am working with my brother in-law on a new project. He is paying for it and I will design and build it. It is a keg scale. We plan on having an electronic...
I haven't hacked a scale. Look on the Hack-a-day type sites. You could just put the keg on a bath room scale and be done with it. It also seems to me that if a...
Jeffry Sampson
jsampson@...
Dec 6, 2007 10:22 pm
1267
... The first problem is that you will have to build a multiplier frame to take the load from all 4 corners to just one scale. It's usually made using a V...
________________________________ From: tcrobots@yahoogroups.com [mailto:tcrobots@yahoogroups.com] On Behalf Of Jeffry Sampson Sent: Thursday, December 06, 2007...
... I saw a website once that showed how it works, but I lost the link. There are some variations, but the concept is to add the weights of each corner while...
Hi, I need to ask a favor of your group. I have a vintage Christmas tree stand with a motor that's supposed to spin the aluminum tree in it. However, the motor...
... Given the small size it could be either a Cap type or a ratchet type. There are three possibility's. 1. The motor needs oil or the bushings/bearings are...
If it helps, here's a link to the patent on the motor, perhaps explaining how this particular one works. US Patent office Kim ... Never miss a thing. Make...
Is that one of those motors that has the entire motor armature and gearbox enclosed in an aluminum housing? (I can't find a picture of one handy...) I guess my...
Jeffry Sampson
jsampson@...
Dec 7, 2007 9:25 pm
1278
... Try this link http://www.freepatentsonline.com/3059131.pdf -- Bill, grumble - William The lion...
... These "pop start" synchronous motors are very sensitive to friction. It probably needs to be cleaned out and lubed. You can sometimes get them started by...
... The center piece needs to be able to turn freely. it it doesn't you will have to drill out the rivets that hold the motor to the frame. (make sure to put...
Your third photo looks like the cover is removed. I would think something there should turn. I can't tell from the photo if that whole thing (about 1" dia.)...
Jeffry Sampson
jsampson@...
Dec 7, 2007 9:55 pm
1284
The center thing is one unit. It turns freely when I move it with my finger. It turns the smaller gear which turns the larger gear. All pieces move well when I...
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