Injection-molded development
Injection-molded packaging parts.
Discuss a part or packaging component around its function, geometry, mating surfaces and intended use.
Stage 1: The interfaces
Show where the part needs to fit.
Overview
Define the part's job.
Start with the function, the parts it meets and the conditions it needs to work in.
Intended purpose
Explain what the part should do and where it sits in the product or packaging system.
Mating components
Identify the surfaces, holes, clips, threads, seals or locating features that meet another part.
Use conditions
Describe contact, motion, load, temperature, appearance or document requirements you already know.
Acceptance question
Name the condition that would make the part unacceptable and how it should be checked.
Project view
Identify the dimensions that control fit.
Separate critical interfaces from reference dimensions so the review starts with the geometry that matters.
Show the outside size, the faces that meet and the space needed for movement. Use your own part drawing or sample to add dimensions and units.
- Outside boundary
- Mating faces
- Movement or clearance
Fit surfaces firstShow where the part meets another component.What to check
- Mark the mating surfaces on a drawing or a photo of the part. Include dimensions and units when known.
- State which dimensions are fixed and which can change. Keep the mating component with the sample.
Movement and appearancePoint to the places that need attention.What to check
- Show how the part opens, releases or moves, and where clearance is needed.
- Mark visible faces with color, texture or finish requirements. Detailed drawings can follow the first discussion.
Comparison
Bring the information you have.
Begin with the part and your question. Add drawings, material requirements and sample checks as the discussion develops.
Enough for a first questionThe part, its purpose and the problem to solve.What to check
- Describe the function and intended use in plain language.
- Tell us whether you have a photo, sketch, drawing or physical sample. You do not need a complete CAD package to start.
Add technical detail when availableBuild on the information you already have.What to check
- Add material requirements, mating parts, dimensions and the checks that matter.
- Share expected quantity and target timing. Ask how to transfer detailed files before sending them.
Stage 2: Your starting point
Bring what is known about the tool.
Next step
Where are you starting with the tool?
Tool ownership, location, condition and transfer rights change the questions that come next.
No existing toolStart from the part and intended use.What to check
- Share the geometry or sample you have.
- A BOX can review the information needed to discuss a tooling route and sample plan.
Existing toolIdentify the tool before discussing its use.What to check
- Tell us its owner, location, current condition and available drawings.
- A BOX needs to review the tool information and project requirements before any transfer or reuse is agreed.
Tool status unknownUnknown is a useful starting point.What to check
- Share the current part and what you know about its origin.
- We can identify the questions to take to the tool owner and discuss what is needed next.
Overview
Keep connected requirements in view.
A change that improves one feature can affect another. Make the fixed requirements clear before choosing a development route.
Example: more clearance, same outer sizeA hypothetical discussion about a lid that meets another part.What to check
- The outer size needs to stay fixed, while a mating part needs more room.
- Mark the fixed surfaces and the possible changes. Review the effect on fit, appearance and opening with a sample before agreeing the change.
Stage 3: The sample checks
Agree what a review should answer.
Take the question into the sample review.
A fit question becomes easier to discuss when the part, its mating component and the drawing refer to the same version.
Identify the version.
Keep the sample reference, drawing revision and known material information together. Mark anything that changed since the previous sample.
Check the actual fit.
Use the mating component and intended opening, movement or assembly. Agree which dimensions and observations will answer the question.
Record what happens next.
Separate accepted points from changes and unanswered questions. Identify who will review the next version before discussing production.
Project inputs
Start a part-development conversation.
Share the purpose, what you have available and the questions you need answered. Tooling and production requirements are reviewed for the specific part.
Put the useful details in one message.
Copy this checklist and add what you know. Mention any drawings or files you would like to share, then ask how to send them when you contact A BOX.
View the part checklist
Opening the contact page does not send or attach the checklist.
Start with the question you need answeredTell us what the part does and what you have available.What to check
- A general inquiry can begin with the purpose, current part and known requirements.
- List any drawings or samples you want to share. Ask for the appropriate file-transfer route before sending detailed files.
Let’s look at your part.
Tell us what the part needs to do and which question you want to resolve. Include the details you have gathered, and ask how to share any drawings or samples.
Discuss your part with A BOX