Correct temperature to sublimate Tumblers

Machine
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I bought the new HTVront Tumbler Heat Press, and no matter how hard I try, my images are burning. Could you please recommend the correct temperatures? I would really appreciate it.

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welcome to the community Emily @Bebemy :wave: I don’t have a press but there are so many here that do, someone will chime in real soon with some advise.

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Hi and welcome to the community @Bebemy! :smiley: Would you please tell us what is your heat settings and time you used? I used 395F for 90 seconds, rotate your tumbler 180 degrees and run for another 90seconds - start with that. Here is the rule of thumb: if your BLACK color turns BROWN that means OVERCOOKED; then when BLACK color turns GREEN that means UNDERCOOKED.

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Hello!! Thank you very much for answering. I used that same setting for the first one and it burned a lot. The second one was 385F x 60s per side and it also burned. The last one I did I lowered to 350F x 40s and that one only burned in a few areas.

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Do you do one rotation for your settings to sublimate your tumbler? I am wondering 'coz the heat recommendation for stainless steel tumblers is 360 F - 400 F for 60 sec - 90 sec. If you’re using less temperature from recommended settings and still burned your tumblers; I’m afraid that your auto tumbler was not calibrated to the right temperature before you get it - your last settings used were already out from recommended settings. Sublimation process only works with a certain temperature in order to transfer the sublimation ink from the sublimation paper yet, your machine sounds like it produces more heat than normal.

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FOR YOUR REFERENCE ONLY.

:wrench: Step-by-Step Calibration & Diagnostic Guide

1. Verify Actual Temperature Output

Use a heat gun or infrared thermometer to check the surface temperature of the press when set to a specific value (e.g., 350°F).

  • If the actual reading is significantly higher than the set temperature, your machine may be miscalibrated.
  • Document the discrepancy for future reference or support.

2. Test with a Known-Working Setting

Try the recommended baseline:

  • 360°F–400°F for 60–90 seconds, rotating the tumbler halfway through.
  • Use a black-heavy design to monitor ink behavior:
    • Black → Brown = Overcooked
    • Black → Green = Undercooked

If burning still occurs at the lower end (e.g., 360°F for 60s), your machine is likely running hot.

3. Check for Firmware Updates or Reset Options

Visit HTVRONT’s official support page to:

  • Download the user manual for your specific model.
  • Look for any reset procedures or firmware update instructions that may recalibrate internal sensors.

4. Contact HTVRONT Support

If manual calibration isn’t available, reach out to HTVRONT directly with:

  • Your test results
  • Photos of burned tumblers
  • Serial number and purchase details

They may offer a replacement, recalibration instructions, or warranty support.

:hammer_and_wrench: Here’s a detailed Step-by-Step Instructions:

1. Preheat Your Heat Press

  • Turn on your HTVRont Tumbler Heat Press.
  • Set it to a known temperature (e.g., 350°F).
  • Let it fully preheat until the display stabilizes.

2. Measure Surface Temperature

  • Aim the infrared thermometer directly at the center of the heated surface.
  • Hold it perpendicular (90° angle) to the surface for best accuracy.
  • Pull the trigger to get a reading.
  • Repeat this at multiple points across the heating element to check for hot spots.

:mag_right: Tip: If the actual reading is significantly higher than the set temperature, your machine is likely miscalibrated.

3. Record and Compare

  • Write down:
    • Set temperature
    • Actual measured temperature
    • Location on press
  • Repeat this process at different set temperatures (e.g., 360°F, 375°F, 400°F) to build a calibration profile.

4. Adjust Your Workflow

  • If your press consistently runs 20°F hotter, subtract that from your future settings.
    • Example: If you want 360°F, set it to 340°F.

:clipboard: Calibration Log Sample

Set Temp (°F) Measured Temp (°F) Difference Notes
350 370 +20 Center of press
360 385 +25 Left edge hotter
375 400 +25 Right edge cooler
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I think it may depend on your mugs or Tumblers but in general I stick to my settings.
Here are the sublimation tutorials I posted on the community and you can also visit my Instagram account all the videos are tutorials to l kinds of crafts and specially with HTVRONT and LOKLiK.

https://instagram.com/marinos.creations?utm_medium=copy_link

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Welcome @Bebemy

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Mee too! :smiling_face_with_tear: I want one! Jajaj

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Dos you take a Photo?

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Bookmarked!