|
|
#41
07-30-2010, 11:01 PM
|
||||
|
||||
__________________
* * The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment. ~Warren G. Bennis 
|
|
#42
08-04-2010, 12:59 AM
|
||||
|
||||
|
And finally got some time to put this thing together.
1 Capacitor installed 2. Bleed resistor 3. Relay installed (Thanks again GWIZ) 4. Second bridge rectifier It has been turned on and none of the magic smoke came out, so that is a plus. Soon as I get a chance I'll run some welds with it and post them. Thanks again GWIZ (can't really say that enough) and all who helped with information. Don't worry I am going to tidy things up and grommet the hole also..  Ken
__________________
There are 10 types of people in the world, those who speak binary and those who don't.
|
|
#43
08-04-2010, 12:52 PM
|
||||
|
||||
|
Quote:
Rotate the relay (resistor facing out) I don't want the pins to short out to the case., note the other side I kept the wires away from the side so it will have some clearance from the metal case. I Assumed you would place the relay with the resistor facing away from the metal case of the welder, so I did not mention it. Also if the relay voltage is to high and drops out you can solder a wire across the resistor without removing it, that's if needed.
__________________
* * The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment. ~Warren G. Bennis
|
|
#44
08-04-2010, 02:21 PM
|
||||
|
||||
|
Quote:
Duh, on my part, will do. I should know better. Ken
__________________
There are 10 types of people in the world, those who speak binary and those who don't.
|
|
#46
08-05-2010, 01:10 AM
|
||||
|
||||
|
Quote:
I have not had time yet to run any. I have a early shift tomorrow so perhaps after work I could get it set up and run a few. Ken
__________________
There are 10 types of people in the world, those who speak binary and those who don't.
|
|
#47
08-08-2010, 01:08 PM
|
||||
|
||||
|
Well I finally got some time on the welder since the modifications. And I must say it is night and day. Weld penetration is much better and feed was smoooooth.
I will post some pics when I can get back at it... and I'm not so jittery.... oh brother, today was a bad day for that. Also had a catastrophic failure of the bleed resistor. That is unless they are supposed to go bang and end up in two pieces. Possible I might have gotten a bad one? It sure did weld much better after it blew... I tried a few more little beads and it seems to run well. Now to order a new resistor and a 120v fan to replace the one that came with it. Something in the 100cfm or above range. I don't like having a charged capacitor in there... I mean I know enough not to touch it but it's the someone else factor. All in all I have to say it was worth the effort. Ken
__________________
There are 10 types of people in the world, those who speak binary and those who don't.
|
|
#48
08-09-2010, 02:42 PM
|
||||
|
||||
|
Quote:
When it comes to resistors I would guess the resistor was miss marked more then the likely hood it was defective. probably off by two decimals places. I have had drill bits and taps that were marked wrong.
__________________
* * The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment. ~Warren G. Bennis
|
|
#49
08-09-2010, 03:34 PM
|
||||
|
||||
|
Bleeder Resistor
Hob, the purpose of the bleeder resistor is as you probably already know to provide a safe slow bleed off of the charge on the capacitor when the circuit is powered down. This is for safety as if you should accidentally drop a piece of metal (such as the gold ring on your finger) across the charged contacts of the cap, it might just blow your finger off!
 The good news is that it needn't be a big, high wattage resistor, just so it is of sufficiently high value that the current going through it is low. A 2W 10K Ohm resistor would work fine. You could get that at your local Radio Shack. Certainly the resistor blew because too much current was passing through it and it got too hot. Probably as GWIZ said it was defective or mismarked. I'm glad you got the welder working better! DrBob
|
|
#50
08-26-2010, 07:50 AM
|
||||
|
||||
|
Well all, I have added a 10kohm 5 watt resistor and a 110cfm muffing fan to the unit.
This has really worked out well. The fan blows a awesome amount of air compared to little so called fan that was factory installed. The resistor remained in one piece this time and drained the capacitor in a reasonable amount of time. Welding pics to come this weekend. Ken
__________________
There are 10 types of people in the world, those who speak binary and those who don't. Last edited by Hobweld; 08-26-2010 at 12:06 PM.
|
 |
| Thread Tools | |
| Display Modes | |
|
|
Linear Mode
