Editing Openai/6936aa63-c09c-8013-ac55-d493c40443ef (section)

== gpt-4o ==
=== User: What to change when a CNC plasma is cutting on an angle? ===
What to change when a CNC plasma is cutting on an angle?

=== Assistant: If your CNC plasma cutter is cutting on an angle bevelled edges instead of straight, square cuts, it's usually due to o… ===
If your CNC plasma cutter is cutting on an angle (bevelled edges instead of straight, square cuts), it's usually due to one or more of the following issues. Here’s what to check and change:

===== - Check if the torch is perfectly vertical to the material. =====
* Adjust the torch mount or machine calibration to ensure it’s perpendicular.
* Even a small tilt can cause angled cuts.

===== - Ensure the torch height control (THC) is set correctly. =====
* Too high or too low can cause uneven kerf and angled cuts.
* Example: On mild steel with 45A, cut height is typically around 1.5mm to 2mm.

===== - Inspect nozzle, electrode, and shield cap for wear or damage. =====
* A worn nozzle can cause the arc to deflect, leading to angled cuts.
* Replace consumables if the orifice is out of round or eroded.

===== - Incorrect speed can worsen bevel angles: - Too Slow = Excessive dross, larger bevel. - Too Fast = Narrow kerf, possible angled cut. =====
* Refer to your plasma cutter’s cut chart for optimal speed for the material thickness.

===== - Running at incorrect amperage for your material thickness can cause poor cut quality. =====
* Example: For 6mm mild steel, 45A is typical; higher thickness may need more amps.

===== - Ensure the torch is centered properly on the gantry and the nozzle hole is centered. =====
* Misalignment can cause angular cuts.

===== - If the material is warped or uneven, the torch height will vary, causing inconsistent bevels. =====
* Use material clamps or supports to keep sheets flat.

===== - Inspect for play or looseness in the machine’s axis bearings or torch holder. =====
* Mechanical looseness can create inconsistent angles.

==== ✅ Re-align and level the torch. ====
✅ Verify correct torch height (use THC or manual check).
✅ Inspect and replace consumables if needed.
✅ Set correct cut speed and amperage from cut charts.
✅ Check for flat material and secure properly.
✅ Inspect for mechanical looseness.

Would you like me to help with specific settings for your machine (material thickness, amps, speed)? Let me know the details!

=== User: What speed to cut 6mm plate at 45amps ===
What speed to cut 6mm plate at 45amps

=== Assistant: For cutting 6mm mild steel plate at 45 amps with a CNC plasma cutter, typical recommended settings are: ===
For cutting 6mm mild steel plate at 45 amps with a CNC plasma cutter, typical recommended settings are:

===== - Speed: Around 1,000 to 1,200 mm/min =====
* Cut Height: 1.5mm to 2.0mm
* Pierce Height: 3.0mm to 3.5mm
* Pierce Delay: 0.5 to 1.0 seconds depending on machine

===== ✅ Ensure new consumables (nozzle and electrode) for clean cuts =====
✅ Torch must be perpendicular to the plate
✅ Use THC (torch height control) if available to maintain correct height
✅ Watch for dross—too slow increases dross; too fast leaves incomplete cuts

Note: These are general guidelines based on common plasma systems like Hypertherm Powermax 45. Speeds can vary slightly with different machines, air pressures, and consumable conditions.

Want me to calculate for a different material or thickness? Just tell me!

=== User: What are the best parameters for torch height controller F1621P? ===
What are the best parameters for torch height controller F1621P?

=== Assistant: The F1621P Torch Height Controller THC is a commonly used system for CNC plasma cutters to maintain optimal torch heigh… ===
The F1621P Torch Height Controller (THC) is a commonly used system for CNC plasma cutters to maintain optimal torch height during cutting. While specific settings depend on your plasma cutter, material, and table, here are general best practice parameters for setting up an F1621P THC when cutting mild steel with a 45A plasma system:

==== ### ====
* 3.0 to 3.5mm
* Ensures safe clearance for arc ignition without damaging the nozzle.

===== - Typically 1.5mm to 2.0mm torch-to-material distance. =====
* The F1621P controls this using Arc Voltage, which varies by material and amps.

Example Arc Voltage Setpoints:

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Note: Exact voltage depends on your machine. It's often best to fine-tune while observing cut quality.

===== - 0.5 to 1.0 seconds after arc start. =====
* Prevents the THC from making adjustments during pierce and ramp-up phase.

===== - Enabled during corners or slow speed moves to prevent THC from lowering torch unnecessarily. =====

===== - Moderate gain to balance smooth height control without overcorrection. =====
* Too aggressive = torch height fluctuates
* Too slow = torch cannot react to warping

==== ✅ Run test cuts to fine-tune the Arc Voltage for your material and amps. ====
✅ Verify torch is square and consumables are good before calibrating.
✅ Monitor for excessive dross or bevel—adjust height or speed if needed.
✅ Keep material flat—THC can only compensate so much for warping.

Would you like me to help calculate exact arc voltage based on your plasma model? If so, share your plasma cutter brand and material details.

=== User: Looking for the settings with the torch height controller ===
Looking for the settings with the torch height controller

=== Assistant: Thanks for the clarification! ===
Thanks for the clarification! Here’s a practical, straightforward setup guide for your F1621P Torch Height Controller when cutting with 45A, focusing on mild steel around 6mm as an example.

=== ### ===
* 3.0mm to 3.5mm
* Keeps the torch clear during pierce to avoid damage.

===== - 1.5mm to 2.0mm =====
* Ideal torch-to-work distance for a stable arc and clean cut.

===== Arc voltage is how THC controls torch height—voltage corresponds to physical distance. =====
* For 45A, 6mm Mild Steel: Start with 118V to 122V, fine-tune based on cut quality. - Lower voltage = torch moves closer - Higher voltage = torch moves away

Tip: Run a test cut, adjust voltage in small steps (1V increments) for minimal bevel and clean edges.

===== - 0.5 to 1.0 seconds =====
* Lets pierce complete before THC activates—prevents erratic movement.

===== - Enabled =====
* THC disables during corners or slow moves to prevent torch diving into the plate.

===== - Start with medium sensitivity =====
* Too aggressive = torch "bounces"
* Too slow = THC can't keep up with warped material

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==== ✅ Always start with new or good consumables—worn nozzles affect voltage readings. ====
✅ Fine-tune Arc Voltage while watching bevel quality.
✅ Flat material helps—THC compensates for warping, but prevention is better.
✅ Each machine varies—always dial in your specific system with test cuts.

Want settings for different thicknesses or materials? Let me know the details, I’ll send the numbers!

=== User: Looking for the optimum settings for these ===
Looking for the optimum settings for these

=== Assistant: Great, thanks for the clear image of the F1621P Torch Height Controller settings chart. ===
Great, thanks for the clear image of the F1621P Torch Height Controller settings chart. Below is a recommended starting point for optimal settings when cutting 6mm mild steel at 45A, which is a common application for CNC plasma systems like yours.

These settings can be fine-tuned, but they provide a reliable baseline for good cut quality, torch height control, and machine safety.

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=== ✅ Ensure your Arc Voltage (P05 base value) matches your actual tested voltage for best cut height—typically around 118V to 122V for 6mm mild steel at 45A. ===

✅ Fine-tune P07 Sensitivity if torch reacts too aggressively or sluggishly.

✅ If cutting thicker materials, adjust voltages and times slightly higher.

✅ Replace consumables regularly—poor nozzle condition affects voltage readings.

Would you like me to help with different thicknesses or a dross troubleshooting guide next? Let me know!

=== User: What steps would I take to get the actual arc voltage to follow the set voltage closer? ===
What steps would I take to get the actual arc voltage to follow the set voltage closer?

=== Assistant: Great question — getting your actual arc voltage to track the set voltage more closely is key for improving cut quality… ===
Great question — getting your actual arc voltage to track the set voltage more closely is key for improving cut quality and ensuring consistent torch height with your F1621P THC.

Here’s a step-by-step approach to dial that in:

=== ### ===

✅ Torch Must Be Perpendicular
* Ensure the torch is 90° to the plate. Any tilt will skew arc voltage readings.

✅ Torch Height Calibrated Properly
* Confirm your cut height is set to around 1.5mm to 2mm during steady cutting.
* Run manual height tests to ensure the machine knows true torch height positioning.

===== Look at these specific settings on your F1621P: =====

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===== ✅ Worn Nozzle or Electrode causes erratic voltage readings. =====
✅ Replace consumables if the nozzle hole is distorted or the electrode is worn.
* Damaged parts distort the arc shape, throwing off voltage feedback.

===== ✅ Ensure your cut speed and amperage match recommendations. =====
* Too slow: Arc widens, voltage increases unpredictably.
* Too fast: Arc stretches, causing voltage instability.

Example for 6mm mild steel, 45A:
* Speed: 1000 to 1200 mm/min
* Cut Height: 1.5 to 2mm
* Arc Voltage Setpoint: ~118V to 122V (dial in with test cuts)

===== ✅ Set the desired Arc Voltage based on measured voltage during a clean test cut. =====
✅ Observe the THC screen:
* If actual voltage lags above/below set voltage, adjust P07 Sensitivity and P06 Threshold accordingly. ✅ Repeat with small changes until actual voltage stabilizes within 1-2V of setpoint during straight cuts.

=== ❗ Actual voltage fluctuates heavily → Check material warping, table grounding, consumables ===
❗ Torch moves erratically → Lower P07 Sensitivity
❗ Torch lags behind changes → Increase P07 Sensitivity, confirm mechanical tightness

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Would you like me to provide a test procedure to dial in your arc voltage with exact measurements? Let me know, I’ll walk you through it!