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  • V-One Support
  • Getting Started
    • Quickstart Videos
    • Hello World Project
      • 1. Safety Guidelines
      • 2. Printer Setup
      • 3. Getting Started with your First Print
      • 4. Dispensing Solder Paste
      • 5. Reflow and Assembly
      • 6. Maintaining the V-One
    • Punk Console Project
      • 1. Safety Guidelines
      • 2. Double Sided PCB Workflow
      • 3. Drill Attachment Setup
      • 4. Drilling the Holes
      • 5. Printing the Circuit
      • 6. Adding Rivets
      • 7. Dispensing Solder Paste
      • 8. Reflow and Assembly
    • Introducing Conductor 3
  • V-One Fundamentals
    • Circuit Design Guidelines
    • Print Settings Overview
    • General Settings
    • V-One Maintenance
    • Mounting the V-One's Tools
    • Understanding Alignment
    • Understanding Probe Issues
    • Understanding Print Height
    • Curing Conductive Ink
    • Choosing Solder Paste
    • Reflowing Solder Paste
    • Working with Rivets
    • Hand Soldering to Ink
    • PCB Design Export Guides
      • KiCad
      • OrCAD
      • EAGLE
      • Altium
  • Mastering Your V-One
    • Improving Print Quality
    • Aligned Printing
    • Purging Solder Paste
    • Filling an Empty Cartridge
    • Creating a Custom Ink Profile
    • Designing with PCB Templates
  • Troubleshooting
    • USB Connection Problems
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    • Broken Nozzles
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    • XY Center Different than Calibrated
    • P- Switch Did not Trigger
    • Z-min Switch Error
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    • Download the V-One Software
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  1. V-One Fundamentals

Reflowing Solder Paste

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Last updated 3 months ago

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Before reflow soldering on the V-One, check the following:

  • Is your board larger than 3" x 4" ( 76.2 mm x 101.6 mm)?

  • Are you reflowing large components like connectors?

  • Does your board have multiple ground planes?

If you said YES to any of the above, then the automatic REFLOW mode may not work correctly. The board will act like a large heat sink and will not reach the peak reflow temperatures. Instead, you should use the MANUAL mode.

Tip: If your board will act like a large heat sink, do a MANUAL reflow instead (See below)

Tin Bismuth Silver (Sn42 Bi57.6 Ag0.4) Profile

Automatic reflow profile for Tin Bismuth Silver (Sn42 Bi57.6 Ag0.4)

Soak Temp.

Soak Time

Peak Temp.

Peak Time

140°C (284°F)

45 seconds

190°C (365°F)

30 seconds

Solder paste can be reflowed up to 8 hours after dispensing, but for best results, reflow as soon as possible.

Tin Lead (Sn63 Pb37) Profile

Automatic reflow profile for Tin Lead (Sn63 Pb37)

Soak Temp.

Soak Time

Peak Temp.

Peak Time

180°C (356°F)

45 seconds

220°C (428°F)

30 seconds

Manual Reflow

A manual reflow requires the user to place close attention to the board as it is reflowing. To perform a manual reflow:

  1. Clamp your board on the heated bed.

  2. Enter Heat > Manual mode.

  3. Set the temperature to the soak temperature.

  4. Hold for 1-2 minutes to let the whole board reach the temperature.

  5. Set the temperature to the peak temperature.

  6. Observe the solder paste closely.

  7. As soon as the last pad finishes reflowing, hit STOP to start cooling the board.

Solder Alloy

Soak Temp.

Peak Temp.

Tin Bismuth Silver

140°C (284°F)

190°C (365°F)

Tin Lead

180°C (356°F)

220°C (428°F)