Expansion / Flow Calibrator

Name: Expansion / Flow Calibrator (3D printed)
Brand: Hark Tech
Price: 6.90 GBP
Availability: InStock

From £6.90 printed to order · UK postage from £2.95, free over £40 · usually dispatched within 2 working days
Arrives damaged? Free reprint, just film the box being opened. Returns policy

Free community design ♥ 1,846 likes ↓ 32,728 downloads

🖨️ Get this printed · from £6.90

Have us print this for you

Typical cost for this model in PLA: ~£6.90 + postage from £2.95 (free Tracked 48 over £40). We prepare your model, print it across our calibrated production fleet and quality-check it before it is usually dispatched within 2 working days.

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Good to know before you order

TPU has a £11.50 print-order minimum. ABS, ASA, PC, Nylon and PETG-CF have a £46 minimum; PA-CF has a £69 minimum. Delivery is shown separately in your cart.

Need a few parts? Add them to one cart. One order minimum and one postage charge cover the cart: £6.90 for standard materials, £11.50 with TPU, £46 with ABS, ASA, PC, Nylon or PETG-CF, or £69 with PA-CF.

Please check the model files include everything you need before ordering. We print the files exactly as supplied, so you receive the parts in the model, not necessarily a finished assembly shown in any photos. These are community designs by their original creators; we manufacture and post them but cannot guarantee fitment for your specific appliance or use case - check the original design page for compatibility.

About this print

A test piece used to calibrate a 3D printer's horizontal expansion and flow settings. It is printed and measured against expected dimensions to reveal how far the machine is deviating from target, allowing the operator to adjust slicer settings before producing functional parts that must fit together accurately. PLA is the conventional choice for calibration work, as it is stable and widely understood, providing a consistent baseline for measurement.

From the original design page

Original maker's notes

By Ferjerez on Thingiverse · CC-BY

Hi! Problems fitting some parts?? Pins are wider than desired? **UPDATE!!! BETTER SOLUTION: Change 'Horizontal Expansion' ** **This is an old piece made for testing assembling part. 2 years ago i worked reducing flow for some pieces to avoid the 'horizontal growth' but the better solution i have by far is tweaking the 'horizontal expansion' to get a good fit in pieces that require assembling.** Use this piece as a test for tuning your settings qhen printing assembling parts. Solution is about controlling the 'flow' of material extruded doing some tests and measuring with any kind of calibration tool. I have no calibration tool and this is my solution: A simple cilinder and a ring that must fit. Easy and fast print. Print-->Test-->Adjust flow an do it again until you get the correct flow value. WARNING: reducing too much flow (under 75% apeox.) can do underextrusion issues. Combine Flow control with 'Horizontal expansion' parameter to get the result you need. Tested with PLA Every filament color/brand/manufacturer prints better with different flows. Also uploaded the 123D Design file Hope you find it useful. Have fun!

Formatting may have been simplified. These are the independent maker's instructions and fitment claims; Hark Tech has not independently verified them.

Printing Expansion / Flow Calibrator

For Expansion / Flow Calibrator we would normally reach for PLA — it is the easy, economical default and suits the majority of models. We set the layer height, wall count, infill and supports to suit the model and how you will use it, and those choices are already priced into your instant quote. Want a specific colour or material? Tell us and we will match it where we can.

Model details

Downloads at source	32,728
Likes at source	1,846
Original model	View on Thingiverse
Designer	Ferjerez
Licence	CC-BY

3dprinting callibration

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