3D CAD or print model
RequiredProvide a model for every part, using STEP / STP, STL or a supported 3D format. Keep the file name matched to the RFQ part number.
GUIDE 02 / FILE PREPARATION
A clear model.
A clearer quotation.
A complete 3D model and parts list help us review the process, material and finishing route sooner — and quote the requirements you actually need.
3D Printing File Guide · Drawings, files & quotation requirements
01
Fewer clarification rounds.
Put the key requirements in the first enquiry.
02
A more accurate quotation.
Review geometry, material and scope together.
03
One shared reference.
Keep quotation, production and inspection aligned.
WHAT TO PROVIDE
Start with geometry.
Keep the details connected.
The model defines the shape. Your parts list defines the material, appearance and quantity. Add a drawing for features that need controlled tolerances or inspection.
Material, colour & finish
Required scopeState the intended requirements in the parts list. If the route is undecided, describe the application and ask CK to recommend a suitable option.
2D drawing
Where neededAdd a drawing when tolerances, threads, roughness or inspection points must be controlled. Identify any interfaces that need CNC post-machining.
YOUR RFQ PARTS LIST
One part number.
One clear set of requirements.
Follow the required-field order in the CK RFQ list. Where the requirement is already on the controlled drawing, refer to that drawing rather than re-enter conflicting values.
01Part number*
02Material*
03Colour / finish*
04Tolerance*
05Roughness*
06Quantity*
07Currency*
083D CAD file*
Optional / where applicable: 2D drawing — for controlled requirementsDestination countryTarget price3D printing process
A FINAL QUICK CHECK
Before you send.
Complete and consistent files help CK assess your part faster and prepare an accurate quotation. Use this checklist to catch missing details.
0 / 6 items checked — your own preparation check.
No files are uploaded here. Final suitability and quotation scope are reviewed by CK.
DETAILS THAT HELP
Less uncertainty.
A clearer next step.
A few practical points to help you prepare the right information. For a drawing-specific question, ask our team.
How should I prepare an STL file?
Export the complete geometry as a watertight mesh. Check the exported file for unintended openings and visibly faceted curves. State the intended units and overall size: STL does not store a unit definition.
Metal printing or plastic and nylon printing?
Tell us how the part will be used, along with the intended material, appearance and functional requirements. CK can review a suitable process for the application; the same route will not suit every design.
Do I need to add printing supports myself?
For quotation, send the intended finished-part geometry and identify important surfaces or orientation requirements. Let CK review build preparation and any support strategy before production.
What if the printed part also needs machining?
Include a drawing that identifies the critical interfaces, datums, threads, tolerances and surface requirements. We can review printing and CNC post-machining together as one planned route.
CUSTOMER REVIEWS
Feedback from our customers.
In our customers’ own words — from part quality to delivery.
Direct messagePart quality
Your material have a really good quality
— 3D printing customer
Email feedbackIn use
The parts have already been assembled and I haven't received any complaints…
— Manufacturing customer
Direct messageDelivery
Everything was perfect
Good packaging
— 3D printing customer
Direct messageFuture projects
Don't worry about that, we have already verified the quality of your work…
— 3D printing customer
Direct messageEspañol
Nos gusta la calidad de ustedes.
Son nuestro mejor proveedor en cuanto a calidad.— Customer · Original Spanish
Direct messageProject requirements
The quality is fine, and in the case of these components, we didn't need very high precision, so it's all good.
— Manufacturing customer
Direct messageOrder feedback
Thank you very much once again for the quality of your work.
— Manufacturing customer
Direct messageEspañol
CALIDAD MUY BUENA LA DE USTEDES— Customer · Original Spanish
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Real messages shared directly with CK. Original wording retained; customer names, companies and order details withheld.
Portraits show CK staff, not reviewers. “CK contact” follows the conversation; “CK team” is a team representative, not an order-handler attribution. No star ratings or external verification implied.
Christina 
Cindy 
Kevin 
Zoe 
Jessica 
Alina 
Kenneth
Your model.
The right route.
Questions about metal, plastic or nylon printing? Speak with any member of the CK team. We’ll help review your model, material and finishing needs — including critical features that may need CNC post-machining.
