TD-1

Where Can I Buy a TD-1

Big news

The TD1s from BIQU (Big Tree Tech) is available for preorder at Presale as of 17 May 2025 with deliveries starting in June.

The TD-1 is not made by HueForge, but by Ajax-3D which was started by a community member. TD-1s used to sell out quickly and were often out of stock everywhere, but not any longer once the TD1s starts to ship.

The list of Resellers is available at Ajax-3d

Why is the TD I get from the TD-1 Different from the HueForge Library?

The library TD values in HueForge are taken from just one or two spools of filament. Over time, we have learned that there can be a large variance in TD between batches or in some cases, parts of a spool. The library values are NOT definitive and your TD-1 is giving you the correct value for YOUR spool.

How Much Variance in TD Should I Expect?

TD Varies in a spool depending on manufacturer. Even those manufacturers that control for TD see variance of +/-10%. Some users are concerned when the same piece of filament varies by 0.1-0.2 between insertions. This is a non-meaningful change that will have no impact on the prediction in HueForge. In fact, if you prefer to round to the nearest 0.5mm on TD, you will not see a difference in the predicted result.

My Colors are Off

The TD-1's primary goal is TD and it measures this very well. Color is something we wanted to have as well because it is useful, but the TD-1 measures color of roughly 1x3mm of filament. No color sensor is going to be perfect at that scale. It is well known that Gray comes in somewhat green, likely due to the LEDs that are on the RGB sensor. Most of the time, if you double click on the color swatch and edit the Green channel to be equal to the next highest color channel (either Red or Blue), you will get a pretty close gray value. Most other color issues tend to be too bright and a brightness adjustment in the same dialog will let you fix that value.

Efforts are underway to improve color accuracy as much as possible, but Ajax is prioritizing production to meet demand and HueForge is prioritizing new feature updates at the moment. When time permits, more effort will be made to improve color with the current sensor and future versions will likely have an improved sensor.