What is CNC THC?
THC stands for Torch Height Control. For your plasma CNC application you can use PlanetCNC motion control system together with PlanetCNC torch height controller. Torch height controller consists of torch height controller and torch height sensor device.
What is torch height control?
The torch height control uses arc voltage to maintain a consistent distance from the plate while the torch is cutting. This allows the system to maintain proper torch height regardless of variations in the material, or flatness of the cutting bed.
What is initial pierce height?
Ideally, the pierce height should be 1/8” off of the material surface you are cutting, to allow the plasma to penetrate, but more importantly when using Arc Voltage Height Control systems, to help maintain the height of the torch tip while the voltage is being read, and maintained.
What is arc stretch?
Arc stretching happens when the plasma arc is stretched either behind the torch, or to either side rather than being directly below it. This can happen after a pierce start when the arc is cutting too slowly and does not match the torch movement.
What is Pierce height on a plasma?
What is plasma piercing?
The piercing process When piercing with a plasma torch, the plasma arc attaches to the top surface of the plate and transfers enough energy to melt the metal near the top. This molten material must then be removed, usually accomplished with the non-current carrying cold gas and the plasma shielding gas.
What is Pierce delay in plasma cutting?
• Pierce Delay Time — Length of time the triggered torch remains stationary at the pierce height before the torch starts the cutting motion. • Best Quality Settings (cut speed and voltage) — Settings that provide the starting point for finding the best cut quality (best angle, least dross, best cut-surface finish).
What can go wrong with a plasma cutter?
10 common plasma arc cutting mistakes
- Using consumables until they “blow”
- Changing consumables too soon.
- Using the wrong parameters and parts for the job.
- Assembling the torch incorrectly.
- Neglecting routine maintenance.
- Not checking gas and coolant flow.
- Piercing too low.
- Cutting too fast or too slow.
What is arc voltage?
Arc Voltage is that amount of voltage that exists on contacts separated by a small gap that will cause an electric discharge across the gap. And, lastly, Arc Current is that amount of current necessary to just sustain an arc caused by the arc- voltage electric discharge.
What is Pierce in plasma cutting?
THE PIERCING PROCESS When piercing with a plasma torch, the plasma arc attaches to the top surface of the plate and transfers enough energy to melt the metal near the top. This molten material must then be removed, usually accomplished with the non-current carrying cold gas and the plasma shielding gas.
What is CNC plasma cutting?
CNC plasma cutting refers to the cutting of metals using a plasma torch controlled from a computer. Plasma cutters operate by forcing a gas or compressed air at high speeds through a nozzle. Once an electric arc is introduced to the gas, ionized gas or plasma is created, the fourth state of matter.
What does Pierce delay do?
If your pierce hole is much wider than the lines you are cutting, the pierce time is too long. While waiting in the pierce delay, your arc is going out because all of the metal is blown away, the pierce time is too long.
Can a plasma cutter cut through concrete?
For a mean power level of 11.2 kW and a nitrogen gas flow rate of 25 Nl/min, the torch is able to cut a concrete plate of 52 mm in thickness with a speed of 20 mm/min and a whole efficiency of about 30%.
What is plasma kerf?
Kerf is the width of material (perpendicular to the torch and cut axis) removed during the plasma cutting process. Kerf is affected by three major variables. Cutting Speed. Faster cutting speeds with other variables constant will result in a narrower kerf.
What is PAC welding?
An arc cutting process that uses a constricted arc and removes the molten metal in a high velocity jet of ionized gas issuing from the constricting orifice. Plasma arc cutting is a direct current electrode negative (DCEN) process.
What is non touch plasma?
𝐍𝐨𝐧-𝐓𝐨𝐮𝐜𝐡 𝐏𝐢𝐥𝐨𝐭 𝐀𝐫𝐜 𝐏𝐥𝐚𝐬𝐦𝐚 𝐂𝐮𝐭𝐭𝐞𝐫: Efficiently cuts through rough, painted, and rusty surfaces and produces minimal slag. Pilot arc technology allows you to cut without touching the tip to the metal. Better cutting quality and longer consumable life.
What is plasma Pierce delay?
• Pierce Delay Time — Length of time the triggered torch remains stationary at the pierce height before the torch starts the cutting motion.
What is THC device in plasma CNC?
This is usually solved with THC device. THC stands for Torch Height Control. For your plasma CNC application you can use PlanetCNC motion control system together with PlanetCNC torch height controller. Torch height controller consists of torch height controller and torch height sensor device.
How to set THC settings in CNC CNC USB controller?
In CNC USB controller software you set THC settings in “File/Settings/Axes/Options”. Enables THC control. Select axis that will be controlled accordingly to THC controller measurements. THC control is applied only when machine reaches its max. set speed (THC is not applied when machine accelerates and decelerates).
Is there a manual for the pricecnc THC system?
The PriceCNC THC system comes with a printed color manual. You can download the manual in PDF form as well as the SheetCAM post processor and its documentation. I recommend watching these AVHC10 videos to better understand the setup and testing options. If playback doesn’t begin shortly, try restarting your device.
How to control Z axis of THC 150 with planetcnc?
Proma Compact THC 150 controller THC controller controls the Z axis via JOG connector of PlanetCNC controller accordingly to THC measurements. -JOG 8 is the input for controlling Z axis in negative direction (connected to DWN output terminal of THC controller)