H2 Series Top Glass Riser (Multiple Heights)

Update 2026-03-19

• Added a new parameter to the customizable option to allow better clearance for the top glass, defaults to 0.4mm which has already increased by 0.2mm from the previous version.
• Added the 0.4mm clearance profiles, all other dimensions are kept the same.
• Added sealing foam cutting template for the rear rounded corners. 

Update 2026-02-18

• Adjusted how the model is split up, but the dimensions and geometries stays the same, so no need to re-print if you're happy with the V1.
• Made this V2 version customizable, so you can adjust it to fit your setup. 
  • This also includes the dimensions of the magnet. Default size is 6x2mm round magents.

 

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Overview

Both my H2D and H2C had the same issue: the PTFE tube from the toolhead rubs against the top glass.

 

Most riser solutions I found were either:

• Overly complicated
• Dependent on uncommon magnet sizes
• Or more complex than necessary

So I designed a simple, no-frills top glass riser for the H2 series.

 

This design focuses on:

• ✔ Simplicity
• ✔ Easy printing
• ✔ Commonly available magnets

Nothing fancy — just a clean, functional solution.

 

Design Features

• Split into sections to fit on standard build plates
• Simple connector pieces to join sections together
• Uses common 6×2 mm round magnets
• Designed specifically for H2D and H2C

 

Available Heights

• 20 mm
• 25 mm
• 30 mm

I personally use the 20 mm version, which gives the PTFE tube plenty of clearance above the glass with extra room to spare.

 

Note: There's now also the customize option if you need different heights.

 

Print Settings & Material

Material: ABS (recommended)

 

⚠️ Important — Calibrate for Shrinkage

 

This is a large part, and shrinkage matters.

 

With Bambu ABS, I measured a scaling factor of 99.3% (tested on both H2D and H2C). Your filament may shrink differently.

 

If you skip shrinkage calibration, the final assembly may end up undersized.

 

Required Hardware

Magnets

6 × 2 mm round magnets https://www.amazon.com/dp/B096LYVGPS (These act as the glass detection magnets.)

Sealing Foam

To maintain a proper seal between the glass and riser, you’ll need foam tape.

 

I used: 50 mm × 1 mm sealing foam https://www.amazon.com/dp/B07L6JYWN7 

 

Cut as follows:

• 25 mm – sides
• 13 mm – front
• 28 mm – back

You only need two strips total using this layout.

 

Final Notes

This is intentionally a simple solution to a common annoyance. 

If you just want your PTFE tube to stop rubbing the glass without redesigning half the printer — this should do the job.