You could probably contact DEC community who may be familiar with Venix like people in Xhomer project (DEC emulator), or find someone who worked on Cybermation. According to Wikipedia Venix ran on DEC PRO-350, DEC Rainbow 100, and on IBM PC. $40=3/16-1/4 plate $41=.053 $42=30 $43=30 $44=0Ĭybermation plasma cutter uses Hypertherm HT40C cutting system and Venix running "CFC 800/900 Office System" according to this post. It is this program that is proving to be the stumbling block.
#Cybermation 700a plasma download
Note that this is use to manage the download of cnc files into the machine it is not the motion control program itself. The machine is a Cybermation 700A plasma cutting machine and here is a snippet of what being download. A program is being downloaded to the operator's control panel and for the life of me I can't figure out what it is written. Therefore, almost all plasma cutting from 600 Amps and up will be above water.I am dealing with an circa 80's era machine controller. Currently there are Cybermation CNC Plasma Cutter dealer or private sales. Unfortunately, under water plasma cutting is only suitable up to about 2” thick material. Find Cybermation CNC Plasma Cutter for sale on Australias No1 online machinery market. However, safe noise levels were achieved even at 2” below water.
#Cybermation 700a plasma full
In this case, the measured reduction was from 103 down to 72 dB(A), and was only achieved once the plate was a full 3 inches below water. While the study did not mention cutting current or distance from the source to the measuring device, it does give a good indication of the relative amount of noise level reduction achievable by submerging the plate. One commonly referenced Swedish study, from 1994, measured sound levels produced by plasma cutting of 10mm (3/8”) stainless steel at various levels above and below water. Of course, plasma cutting on a water table can significantly reduce the plasma sound levels. With sound levels up to 120 decibels, hearing protection is definitely required for the operator and anyone else working near the machine.
How Much Does Under Water Cutting Affect Plasma Noise Levels? Note that this is use to manage the download of cnc files into the machine it is not the motion control program. A program is being downloaded to the operators control panel and for the life of me I cant figure out what it is written.
These levels are estimated at 6’ from the operator, for dry cutting – a typical worst case scenario. I am dealing with an circa 80s era machine controller. Noise does tend to bounce around, depending on things like that.īased on actual measurements taken at ESAB, combined with other data that is available on the internet, we have assembled the following chart of estimated sound levels. Actual sound pressure levels to reach an operator also depend heavily on how far away he is from the noise source, as well as other environmental factors, such as location and type of walls, ceiling, etc. How loud a specific system is will depend mostly on the cutting current and the type of cutting table, but also on the gases and nozzle being used. Dry plasma cutting is going to range from around 90 to over 120 dB, which is well above the threshold that will cause hearing damage. It’s about as loud as a two stroke chain saw about 30 feet away, or about the same as a loud toilet flush 3 feet away.
Paragraph 1910.95(c)(1) states: “The employer shall administer a continuing, effective hearing conservation program.whenever employee noise exposures equal or exceed an 8-hour time-weighted average sound level (TWA) of 85 decibels measured on the A.” That is why most employers are trying to keep noise below the 85 dB threshold.īut 85 dB isn’t that loud. 95, entitled “Occupational noise exposure“, deals with noise levels in the workplace. In use will require hearing protection when dry cutting.
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