Tinkering Desk Calculator
Type three blueprint ratings. From our cluster testing in the Tinkering Desk guide.

Item stats could not be loaded.
Enter all three ratings
Each stat rolls on its own between floor and best; the rating does not fix any one stat.
Never fails, never below the average.
All three are equal. The result cannot fall below this rating.
The desk's own info text says Stable can drop to 50% of the average. It can't on this build: 0 of 1,000 came out below the average.
One set in four is destroyed (23.7% measured, 1,000 combines).
The desk's info text says Unstable has only a 25% chance to combine. It's the other way around: 75% succeed, 25% are destroyed.
There is no reason to use Unstable on this build: Stable gives you at least the same result with no loss.
Reach a target
Enter a whole number of blueprints
Enter a starting and a target rating
What n blueprints get you
EstimateStable target scenario, our projection:
| Path | Steps | Blueprints needed |
|---|---|---|
| Typical (1.1 per step) Estimate | 6 | 729 |
What this does not do
- Mixed items: the result type is picked at random among the three. Not modeled here.
- Stats: with an item picked, each stat's floor, typical and best come from our fitted roll model (see the guide); without one, this page shows ratings only.
- Tier names: not shown. The rating decides.