Buying guide
Start with a fair comparison
Use one approved file revision and describe what the part must do. Quote the same quantity, intended material, critical dimensions, and finishing or hardware needs. Different layer profiles, walls, infill, orientations, or processes can produce different parts even when the outer model is identical.
A first comparison at quantities of 1, 5, and 25 can help distinguish a fit sample, a small pilot, and a short run. These are useful comparison quantities, not a promised price break or a minimum order.
- Use the same model revision and measurement units.
- Identify mating features, loads, temperature, sunlight, wear, and any special requirements.
- Keep requested hardware, post-processing, and inspection scope explicit.
Buying guide
Compare the delivered price
Record the parts subtotal and each extra item separately. Compare the final payable total for the same destination and quantity. A per-part price without delivery can make a small order look cheaper than it is.
At BuildplateCo, upload STL, STEP, or STP models to review part pricing, quantity options, and the production estimate. Enter a U.S. shipping destination at checkout to see shipping cost before payment. CAD modeling or repair is separately scoped and priced for approval before work begins.
| Item | What to compare |
|---|---|
| Printed parts | Same model, revision, quantity, material, and agreed setup. |
| Preparation or modeling | Whether a printable file exists and any paid CAD scope. |
| Hardware or secondary work | Confirm inserts, bushings, assembly, finished holes, or finishing explicitly. |
| Shipping and checkout charges | Final payable total for the same address and delivery option. |
| Revision risk | Whether a fit sample is needed before ordering the full quantity. |
Buying guide
Check the process against the part
An FDM plastic bracket, a resin appearance model, and a machined plastic component serve different needs. Compare the manufacturing process and named material with the real application rather than treating all 3D printed parts as equivalent.
BuildplateCo's current FDM service uses a 0.6 mm nozzle and a 0.24 mm layer profile. Visible layers are normal. About ±0.25 mm is a typical expectation for many well-designed parts, not a guarantee for every feature. Check the current capabilities guide for size, wall, clearance, and finish guidance.
- Ask how critical fits, small holes, and contact surfaces will be handled.
- Match heat and load requirements to the material and actual printed geometry.
- A filament datasheet or a successful upload does not certify the completed part for its application.
Buying guide
Separate production from shipping
Ask when production starts, what the estimated production time covers, and whether carrier transit is additional. A fast shipping service does not shorten the manufacturing queue.
BuildplateCo shows the current production estimate during quoting and starts production after payment. Shipping options and carrier transit estimates appear separately at checkout. The part geometry, material, quantity, and queue affect production timing.
Buying guide
Look for relevant evidence and clear boundaries
Look for examples with stated geometry, material, and intended use that resemble your part. Photographs, measurements, and documented results are more useful for a functional component than a gallery with no context.
Check whether examples are documented customer projects or illustrative designs. An example shows an application; it should not imply a measured customer result when none is supplied. Read the supplier's file-handling, order, and support policies before uploading sensitive geometry or placing an order.
- Ask who handles questions about fit and material selection.
- Check the stated process limitations and how changes or order issues are reviewed.
- Make sure any performance claim applies to your intended material and application.
Buying guide
Approve the fit before buying the run
For a bracket, fixture, or replacement, one part in the intended material can reveal fit or access problems before they are repeated across a batch. Check mounting, operation, and the actual environment; a CAD assembly cannot show every condition of the real equipment.
Record the approved file revision and setup. Recheck the fit if the geometry or material changes. Then compare the small-run total and production estimate using the approved version.
| Question | Record for each supplier |
|---|---|
| Will it meet the need? | Process, named material, fit plan, and any unanswered application questions. |
| What will I pay? | Parts, separately scoped work, and the delivered checkout total. |
| When can it arrive? | Production estimate, start trigger, and carrier transit estimate. |
| What proof supports the offer? | Relevant documented work, truthful example labels, and clear service policies. |
| What happens next? | Sample approval, revisions, order tracking, and the support contact path. |
Key takeaways
What matters most
- Compare the same part and application requirements at each supplier.
- Use the delivered total and production plus carrier transit to judge the order.
- Validate a first part when fit or real-world performance matters before repeating the design.