Search found 23 matches

by larry lee
Tue Jul 16, 2013 1:02 am
Forum: Metal Cutting
Topic: Multiplaz-3500 Evaluation, Part 14: Summary and Conclusions
Replies: 5
Views: 3074

Re: Multiplaz-3500 Evaluation, Part 14: Summary and Conclusi

Thank you Larry, Both for the effort you put into this evaluation, and for your (and your company's) willingness to share it here. I'm not too surprised with your conclusions... Every tool has it's place and purpose, and the marketing departments of many companies tend to inflate their claims for t...
by larry lee
Sun Jul 14, 2013 4:39 pm
Forum: Metal Cutting
Topic: Multiplaz-3500 Evaluation, Part 14: Summary and Conclusions
Replies: 5
Views: 3074

Multiplaz-3500 Evaluation, Part 14: Summary and Conclusions

Multiplaz-3500 Evaluation, Part 14: Summary and Conclusions DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as much factual information a...
by larry lee
Mon Apr 22, 2013 12:17 am
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 13
Replies: 2
Views: 2120

Multiplaz-3500 Evaluation, Part 13

Multiplaz-3500 Evaluation, Part 13: Health and Safety Issues (continued) DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as much factual ...
by larry lee
Sun Mar 10, 2013 11:09 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 12
Replies: 0
Views: 3934

Multiplaz-3500 Evaluation, Part 12

Multiplaz-3500 Evaluation, Part 12: Comparing the Welding Torch DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as much factual informati...
by larry lee
Sun Mar 10, 2013 5:24 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 11
Replies: 0
Views: 1434

Multiplaz-3500 Evaluation, Part 11

Multiplaz-3500 Evaluation, Part 11: Testing the Welding Torch (continued) DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as much factual...
by larry lee
Mon Mar 04, 2013 1:04 am
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 09
Replies: 3
Views: 2204

Re: Multiplaz-3500 Evaluation, Part 09

WerkSpace, Thank you for your comments. I agree that there are improvements that can be made in the operating procedures that are recommended in the Multiplaz-3500 manual. However, for our testing we first test the torches as stated in the manual. My evaluation is also from the perspective of using ...
by larry lee
Mon Mar 04, 2013 12:32 am
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 10
Replies: 2
Views: 1916

Multiplaz-3500 Evaluation, Part 10

Multiplaz-3500 Evaluation, Part 10: Health and Safety Issues DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as much factual information ...
by larry lee
Sun Feb 24, 2013 2:01 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 09
Replies: 3
Views: 2204

Multiplaz-3500 Evaluation, Part 09

Multiplaz-3500 Evaluation, Part 09: Testing the Welding Torch DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as much factual information...
by larry lee
Mon Nov 26, 2012 2:27 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 08
Replies: 1
Views: 1835

Multiplaz-3500 Evaluation, Part 08

Multiplaz-3500 Evaluation, Part 08: Electrical Power Issues DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as much factual information a...
by larry lee
Sun Nov 04, 2012 10:22 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 07
Replies: 2
Views: 1898

Multiplaz-3500 Evaluation, Part 07

Multiplaz-3500 Evaluation, Part 07: Testing the Cutting Torch (conclusion) DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as much factua...
by larry lee
Tue Oct 23, 2012 10:23 pm
Forum: Welding Forum General Shop Talk
Topic: Anyone heard of this? Multiplaz
Replies: 55
Views: 8745

Re: Anyone heard of this? Multiplaz

I am happy to see the interest in the Multiplaz (water/alcohol plasma) technology . I am even happier to see the rational discussion of its advantages and disadvantages on this website. I read all of the postings on the other sites about the Multiplaz-3500 unit (all 30+ pages of them) before I start...
by larry lee
Tue Oct 23, 2012 9:25 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 06
Replies: 3
Views: 2211

Re: Multiplaz-3500 Evaluation, Part 06

The value given in the table for the weight of the Miller Spectrum 125C has a question mark behind it because there were different weights listed in different Miller publications about the unit. I checked with Miller and the weight for the current unit, complete with torch, is 31 pounds. In 2004 the...
by larry lee
Sun Oct 21, 2012 11:33 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 06
Replies: 3
Views: 2211

Multiplaz-3500 Evaluation, Part 06

Multiplaz-3500 Evaluation, Part 06: Comparing the Multiplaz Cutting Torch (continued) DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as ...
by larry lee
Mon Oct 15, 2012 12:27 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 05
Replies: 1
Views: 1943

Re: Multiplaz-3500 Evaluation, Part 05

CLARIFICATION Replace the sentence "Obviously, if the transfer were very efficient, the inner core of the plasma arc wouldn't be able to sustain a temperature of 8,000 to 20,000 degrees Celsius." with "Obviously, if the radial heat transfer were very efficient, the inner core of the p...
by larry lee
Sun Oct 14, 2012 11:05 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 05
Replies: 1
Views: 1943

Multiplaz-3500 Evaluation, Part 05

Multiplaz-3500 Evaluation, Part 05: Comparing the Multiplaz Cutting Torch DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as much factual...
by larry lee
Sun Oct 14, 2012 6:26 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 04
Replies: 2
Views: 2396

Re: Multiplaz-3500 Evaluation, Part 04

Correction:

Rather than say "cutting vertically sideways", I should have said "cutting sideways with the sheet vertical".

If this were a weld, it would be called a horizontal weld.

larry lee
by larry lee
Sun Oct 14, 2012 6:09 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 04
Replies: 2
Views: 2396

Multiplaz-3500 Evaluation, Part 04

Multiplaz-3500 Evaluation, Part 04: Testing the Cutting Torch DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as much factual information...
by larry lee
Sun Sep 30, 2012 9:18 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 02
Replies: 5
Views: 6972

Re: Multiplaz-3500 Evaluation, Part 02

With regard to the questions about the composition and temperatures of the plasma; The central core of the plasma is, according to the Multiplaz literature, at a temperature of about 8,000 degrees Celsius. But the central core (the brightest point in the plasma) is surrounded by gas at lower tempera...
by larry lee
Sun Sep 30, 2012 8:57 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 03
Replies: 0
Views: 2579

Multiplaz-3500 Evaluation, Part 03

Multiplaz-3500 Evaluation, Part 03: Incoming Inspection and Preliminary Tests DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is to provide as much fac...
by larry lee
Sun Sep 23, 2012 2:06 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 01
Replies: 11
Views: 22713

Re: Multiplaz-3500 Evaluation, Part 01

With regard to the questions about using water and/or water/alcohol mixtures:

Please see Part 02 of the evaluation. If this does not answer your questions, please repost your question under Part 02.

larry lee
by larry lee
Sun Sep 23, 2012 1:59 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 01
Replies: 11
Views: 22713

Re: Multiplaz-3500 Evaluation, Part 01

With regard to the question about grounding the filler rod: Like most modern welding power supplies, the output of the Multiplaz power supply is "floating", that is, it is not electrically connected to ground unless you deliberately do so. Only the metal case of the power supply is connect...
by larry lee
Sun Sep 23, 2012 1:14 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 02
Replies: 5
Views: 6972

Multiplaz-3500 Evaluation, Part 02

Multiplaz-3500 Evaluation, Part 02: The Multiplaz Technology Co., Ltd. and the Multiplaz Technology DISCLAIMER! Let me emphasize that I will not be able to tell you whether the Multiplaz-3500, or any other piece of equipment, will be a good investment for you. Only you can decide that. My intent is ...
by larry lee
Sun Sep 16, 2012 2:08 pm
Forum: Welding Forum General Shop Talk
Topic: Multiplaz-3500 Evaluation, Part 01
Replies: 11
Views: 22713

Multiplaz-3500 Evaluation, Part 01

Multiplaz-3500 Evaluation, Part 01: Plasmas and Plasma Torches I work for a company that performs technical (and other) evaluations of many products and processes. We are doing an evaluation of the Multiplaz-3500 plasma cutter/welder for our possible use and I agreed to post the results on this foru...