Practical guidelines for preparing your CNC, laser-cut, and 3D printed designs. Check the essentials before requesting a quote.
Upload your final solid model to the CNC quote tool. Confirm the preview, dimensions, material, and thread details before adding the part to your cart.
| Requirement | Online quoting |
|---|---|
| File format | STEP or STP; one solid body per file. The current upload limit is 25 MB. |
| Overall size | Up to 14 × 14 × 14 inches (355.6 × 355.6 × 355.6 mm) for instant quoting. Stock availability and geometry can still require review. |
| Quantity | 1–20 pieces per quoted part. For 21 or more, request a custom quote. |
| Tolerance | Standard CNC machining tolerance: ±0.005 inch (±0.127 mm). |
| Tapped holes | Specify up to three supported tap sizes with hole counts. More sizes, unlisted threads, or more than 100 tapped holes per part require manual quoting. |
| Material | Choose a listed material in the quote tool. Use the materials guide for current options. |
Round milling cutters leave a radius in internal pocket corners. Add appropriate internal radii instead of requiring sharp square corners. If a square mating part must fit, discuss corner relief with KRC.
Deep narrow pockets, long small-diameter holes, undercuts, and thin walls can increase machining difficulty. Give the cutter room to reach the feature and avoid unnecessary depth.
There is no single wall thickness or depth limit that works for every material and shape. Send difficult features for review rather than assuming a successful upload guarantees manufacturability.
Upload a clean 2D DXF containing only the profiles to be cut. For supported signs and simple shapes, the Laser Template Builder creates the geometry for you.
| Requirement | Online quoting |
|---|---|
| File format | 2D DXF cut profiles. Send other formats or custom engraving artwork to KRC for review. |
| Maximum part size | 24 × 40 inches (609.6 × 1016 mm) laser bed. The chosen stock sheet may impose a smaller usable size. |
| Minimum part size | 0.5 × 0.5 inch (12.7 × 12.7 mm). |
| Minimum feature | 0.040 inch (1.016 mm). |
| Minimum hole diameter | 0.050 inch (1.27 mm). |
| Minimum web | 0.060 inch (1.524 mm) of connecting material between nearby cuts. |
| Accuracy and fit | The laser page lists typical ±0.005-inch positional accuracy. This is not a universal finished-part tolerance or press-fit guarantee. Kerf, material, thickness, and heat affect fit. |
Kerf is the width of material removed by the laser. It affects holes, tabs, slots, and mating edges. Sheet thickness also varies from its nominal value.
Discuss press fits and close-fitting assemblies with KRC. A small test part can help establish fit before a larger run. Do not apply an assumed kerf offset without agreeing on the approach.
The centers of letters such as A, B, D, O, P, and R can fall out when the letter is cut through a sheet. Add bridges or choose a stencil font when the center must remain attached.
The CO₂ laser service cuts the approved nonmetal sheet materials shown in the quote tool. It does not cut metal. Use the CNC quote tool for machined metal parts.
Do not submit PVC, vinyl, unknown plastics, or customer-supplied sheet for laser processing without approval. Check the materials page for listed options.
Laser quotes cover flat cut profiles. Bending, assembly, coatings, and other secondary work are not included. Engraving is included only on templates that explicitly offer it.
Upload STEP, STP, STL, or 3MF to the 3D printing quote tool. Use one closed, connected part per file, up to 25 MB and 200,000 mesh triangles. Multi-part builds, open meshes, and unsupported 3MF extensions need review or a simpler export.
STL files contain no reliable unit declaration: select the original export units. STEP and 3MF units are converted to millimeters automatically. Switching the display between inches and millimeters changes the display, not the physical part size.
Confirm the complete preview and dimensions. The quote uses that normalized millimeter STL for production; the original file is retained as a reference. 3MF slicer settings, painted colors, and embedded print instructions are not used.
The online size allowance is 230 × 230 × 240 mm (about 9.06 × 9.06 × 9.45 inches). The quote tool checks whether the part fits within this space.
KRC selects the final print orientation and supports during setup. Size checks run automatically; near-limit parts and support-heavy geometry receive manufacturability review.
PLA comes in white, black, red, blue, orange, and green. PETG-CF and TPU are black only. Each quoted part uses one material and one color. Choose 20%, 40%, or 100% infill.
The standard profile uses 0.20 mm nominal layers and 3 walls. Printed parts are direction-dependent; high infill does not guarantee strength. Discuss heat exposure, loads, safety-critical use, and any specific TPU hardness with KRC.
Avoid paper-thin walls, unsupported fine details, and unnecessarily large overhangs. Use generous connecting sections and add clearance for mating parts. There is no single guaranteed minimum wall or fit clearance for every geometry and material.
Layer lines and support-removal marks are normal. Tight fits, specified surface quality, special tolerances, inserts, and post-processing need a custom quote. KRC selects support strategy during slicing review.
A STEP model is required for the online CNC quote. A drawing is useful for threads, critical fits, tolerances, finishes, and requirements that geometry alone cannot communicate. Send special requirements for review before ordering.
Yes, send the sketch and explain the part’s purpose. KRC can review whether design assistance is appropriate. Design work is quoted separately.
Uniform scaling changes the whole profile, including hole sizes, slots, and connecting webs. Recheck every critical dimension and minimum feature after resizing.
Use CNC quoting for STEP files or laser quoting for DXF files. See how it works for the complete ordering process.
Email your model or drawing, quantity, material, and project requirements. KRC will review the job with you.
