CNC MDF Routing: Drawings, Depths & Hole Positions

The guide below shows what to send, what to trial and how to carry the accepted first part into repeat machining.

CUZI MDF manufactures MDF and machines components in Shuyang, China. Work with our factory on the board, cutting, routing, drilling and packing together. A useful inquiry starts with the part your workshop wants to receive, its assembly role and the operations you want included in our supply.

Define the component and the stage you want delivered

CNC MDF processing turns the selected board into drawing-defined parts. Cutting, routing, drilling and profiling can create different operations within one component. Identify the included work and the finishing or assembly that follows, so the quote describes a clear delivered result.

Our CNC MDF Processing page covers general drawing-defined parts. Use Cut-to-Size MDF for rectangular component schedules and Routed MDF Cabinet Doors for door-specific profiles and fittings. Those choices help describe the work to include in the order.

Start with the component's function: cabinet side, routed front, retail fixture, display part or wall module. Mark the visible face, reverse, top, edges and intended assembly position. Hardware, support, surface and service conditions then give each machined feature a purpose.

Keep one current drawing and file package

Send the dimensioned drawing and CAD/CAM exchange file where available, with a model or section details where the geometry needs them. Keep the part schedule and file revisions aligned. Identify which document controls a dimension when a visual rendering and a machining file contain different information.

A dimensioned drawing helps communicate design intent. Exchange geometry helps describe the contour and feature paths. We confirm the files suitable for the proposed work and resolve any difference before the order is released. Identify open questions in the drawing package so the answer becomes part of the current revision.

For an inquiry, email drawings or a cut list to sales@cuzimdf.com and include the name or company used in the request. You can begin with the part information in the inquiry form, then provide the files that define the work. Keep the same part codes across the conversation and quotation.

Select the material and distinguish sheet size from part size

The input board and completed component have different dimensions and surfaces to specify. Board format influences nesting and handling. Part size, feature positions and finished thickness influence assembly. Identify both with the selected product and grade.

Our input MDF capability spans 2–35 mm and six board formats: 1220 × 2440, 2100 × 2800, 1830 × 3660, 1830 × 2440, 2440 × 3660 and 1830 × 4200 mm. The machinable material, depth, geometry and operations follow the particular part and equipment review. State the named product's density and performance requirements with the order.

For a faced panel, identify the core and both faces, including any removable protective film and supplied edge treatment. State whether dimensions and feature depths refer to the core surface or the completed face. Keep subsequent sanding, coating and edging allowances with the required finished dimensions.

Show front and reverse operations from named datums

Use a controlling face for machining depth and clearly named references for X and Y positions. Identify the drawing view and orientation on each side. The programming and inspection teams should be able to reproduce the same reference without inferring which face or corner was intended.

The following example assumes one bare component 400 × 300 × 18 mm. Both views use millimetres and a bottom-left view origin, with X increasing right and Y increasing upward. The back view is the same part turned left-to-right; its origin is a different physical corner from the front-view origin.

For this stated view convention, back-view X equals 400 minus front-view X, and Y stays the same. H1 gives 400 − 60 = 340 mm; H2 gives 400 − 290 = 110 mm. The centred pocket occupies X 140–260 mm and Y 110–190 mm in both views. This symmetry belongs to the assumed centred feature.

The drawing illustrates geometry and view references. Your actual datum scheme, flip direction, setup, machine origin and program follow the released component and machining review. The reverse-face view describes the same component. A handed companion has its own part code, drawing and quantity, with its features specified separately.

Add sections through steps and opposing operations. For repeated decorative panels, show the visible orientation and neighbouring modules. For a furniture part, show the intended hardware face and how it meets the mating component. Clear views make these requirements easier to check on the first physical part.

Describe every feature beyond its outline

A closed contour identifies a shape; the depth, corner form, reference face and finished condition make the operation specific. Use a feature schedule to connect those details to the part code and drawing revision. Show sections wherever two depths or materials meet.

For Grooved MDF Panels or Perforated MDF, state the full pattern and borders. For Slotted MDF Panels, identify the actual slot, insert or fitting interface. A pattern dimension and the finished fixture's performance answer different questions; the assembly and intended use stay with the relevant design.

For MDF Mouldings, include the section and required finished length with the supplied preparation. For a routed cabinet front, link the profile section and reverse hardware drawing to the same part revision. Our Cabinet Door Guide develops the door-specific information.

Record remaining core and tolerances for the complete part

Opposing pockets can act on the same local area. In the example above, the 6 mm front pocket and 4 mm rear pocket share a 120 × 80 mm footprint. The nominal material remaining between them is 18 − 6 − 4 = 8 mm. Read the deepest overlapping features together and record the required local section in the component design.

This calculation describes nominal geometry. Actual material, tool access, depth control, tolerances, finishing and component performance require their own checks. A nominal 8 mm remainder is a drawing result; the responsible design establishes the required section for the part's use. The Thin vs Thick MDF guide expands remaining-section and finished-thickness questions.

Define the following for each critical feature:

• The named datum, controlling face and intended measurement stage.
• Required nominal dimension and feature-specific tolerance.
• Input-core thickness and the deepest local front/reverse features.
• Minimum remaining section required by the component design.
• Measuring method and actual condition of the supplied part.
• Hardware or mating-part trial where the result depends on assembly.

The MDF core's nominal thickness tolerance of ±0.1 mm is a material parameter, subject to the agreed measuring method. Outside dimensions, hole positions, groove widths, profile depths and final faced/painted thickness have their own requirements. We review the actual tolerances with the material, geometry, operations and finished condition before confirming the order.

Group fit-critical and visual-alignment dimensions so the first-part report identifies them clearly. Agree the general dimensions and any reference-only dimensions separately. This gives inspection a useful set of checks and gives purchasing an accurate description of what the quote includes.

Review cutter access and the machining setup on the actual material

The tool needs access to the required feature and a workable way to hold the part. Inside radii, deep pockets, narrow ribs, thin remaining sections and decorated faces all influence the machining strategy. Send these details with the intended finish so our team can review the operations together.

Use the following information in the machining review:

• Selected core, face/reverse construction and actual thickness.
• Feature widths, internal radii, depths and adjoining surfaces.
• Cutter access, cutting length, projection and entry/exit conditions.
• Support and holding throughout the planned operations.
• Exposed-face quality, edge preparation and the next finishing step.
• Representative part checks and recorded setup/program revision.

EPF's MDF routing guidance relates tool choice and cutting conditions to edge quality and wear. Its edge-profiling guidance connects profile geometry, tooling and the surface prepared for finishing. Use current tooling instructions and the actual machine/material trial to establish the setup for the order.

For an internal corner, show the required radius or drawing-defined relief that allows the intended mating part to fit. Review any feature where the available cutter or access changes the proposed geometry. The resulting clarification belongs in the current drawing and accepted first part.

Spindle speed, feed, passes, cutter and holding describe a particular machining setup. Record the settings that produce the agreed part on the selected material. A purchasing drawing defines the required component and acceptance points; our machining review connects those requirements with the actual process.

Keep nesting, direction and quantities visible

List each part with its own quantity. Identify handed or matched pieces and the visible direction on the board. A nesting plan can then respect veneer grain, decorative pattern, face orientation, trim, tool spacing and any installation sequence your project needs.

The following is an assumed order-piece worksheet for one CNC part. It counts requested pieces; the nesting plan determines input-sheet consumption from the actual geometry, direction and setup.

Keep accepted delivered quantities and any trial-piece treatment explicit in the quote. This lets your team see whether samples, setup parts and spares are included, separately allocated or assessed before batch delivery. Sheet quantity and reusable offcuts follow the agreed nesting and charging basis.

For veneer or directional decor, maintain the component sequence across the elevation or furniture set. Our veneer grain-matching guide explains the physical reference and adjacent-panel sequence. For rectangular schedules, the cut-to-size guide covers the part-list fields and quantity basis.

Connect machining with the supplied surface and next finish

State when a face, coating or edge operation happens relative to machining. A raw routed part for painting, a faced panel cut into components and a finished front with reverse hardware each expose different material and leave different work for the next team.

Include these finishing details with the part:

• Visible front, reverse, edges and required direction/reference.
• Face, backing, adhesive and removable film where applicable.
• Cutting/routing before or after the specified facing or coating.
• Exposed core in edges, grooves, holes and newly machined areas.
• Sanding, sealing, banding or coating included in the supplied stage.
• Critical completed dimensions and a representative finish/assembly trial.

For painting, our MDF Edge Preparation guide connects clean machining, profile preservation and the coating system. EPF's edge-finishing guidance supports the general sequence of clean cutting, geometry-suited preparation and compatible sealing. Your selected system and sample establish the actual finishing process.

For a decorative panel, protect the supplied face and keep its edge treatment and pattern direction identifiable. The MDF Surface Finishing guide helps describe layers, supplied preparation and finished dimensions. A representative component gives your team a useful comparison through the downstream work.

For a fire-specified or other assessed construction, match the machining, facing and installation with the applicable product or system documents. Use the Fire Rated MDF checklist for those scope checks. The actual requirement belongs with the same component being drawn, finished and delivered.

Check a first part that represents the demanding features

Choose a first part containing the features most important to fit, appearance and repeat machining. Include the deepest or opposing operation, internal corner, hole pattern, visible edge and any mating hardware. Evaluate it in the supplied condition and through the relevant finishing or assembly trial.

Keep the measured record and identified physical sample with the current drawing. Where a correction is agreed, issue the revised geometry and repeat the relevant checks. Identify who confirms the part and how the first-part review fits the production schedule.

Samples are free across our product range and usually available from stock. You pay the courier charge, which can be credited against a formal order. For a drawing-specific machined trial, we confirm the preparation, available material, dispatch and estimated transit timing for your address. Request a CNC MDF trial sample with the part and the operations you want to assess.

Carry the accepted revision through production and inquiry

Agree checks after first setup, tool changes and the relevant production stages. Use the same critical dimensions, viewing conditions and sample references. Link the resulting records to the material, part, batch and program revision, then retain the actual correction and recheck where a feature changes.

Group delivery by part, cabinet, room, elevation or agreed sequence. Protect routed details, thin sections and decorated faces with the selected supports, separators and edge protection. Place identifying labels on the protected reverse or outer packing as agreed, with part code, quantity and orientation carried into the packing list.

We support third-party inspection with scope and timing arranged for the order. The pre-shipment inspection checklist helps organise material, feature, finish, identification and packing checks. At receipt, compare the delivered components with the agreed drawing and sample, and record findings under the order/part references.

For a clear quotation, send:

• Intended component, assembly role and destination.
• Selected MDF/grade, thickness, density and required documents.
• Input format, face/reverse and supplied preparation or finish.
• Current drawing/file package, units and part/revision codes.
• Datums, views, dimensions, feature depths and remaining sections.
• Critical tolerances, measurement method and hardware/mating requirements.
• Quantities, direction, matched or handed parts and nesting constraints.
• First-part/sample, inspection and any agreed trial/spare allocations.
• Labels, protective packing, delivery place and requested timing.

We reply within 12 hours. Your written quotation identifies the actual material and operations, quantity, charging unit, price/currency, packing, FOB Qingdao or FOB Lianyungang, production lead time, T/T or L/C payment conditions and validity. Board, machining, additional preparation and finished work are identified by the agreed supply scope.

Normal MOQ is 1 × 20'GP per specification, with mixed-part grouping confirmed in the quote. Normal production lead time is 3–10 days after the specification, drawings, sample plan and commercial terms are confirmed. MDF board capacity is 300 m³ per day for each thickness; CNC output and timing follow the particular operations and part mix. The first-part stage is included in the agreed order schedule.

Shipments use Lianyungang or Qingdao, with loading planned from component dimensions, density and packing. For reorders, refer to the previous part/sample and current revision, then identify any changed material, geometry, face, quantity or delivery grouping.

Request a CNC MDF quotation, request the relevant product information or discuss your drawing with our factory.

CNC MDF drawing and ordering questions

Which files are needed for a CNC MDF quotation?

Send the current dimensioned drawing and exchange geometry where available, with sections/model details needed to describe the part. Add material, supplied finish, units, revision, part codes, quantities, datums, depths and critical tolerances. We confirm file suitability and resolve the drawing questions for the proposed work.

How should I define front and reverse machining?

Name the controlling face, view, top and coordinate/depth references. Show operations on each side and sections through overlapping features. State the actual view/flip convention so programming and inspection can reproduce the same part and its orientation.

How do I distinguish a back view from a handed component?

A back view shows the reverse of the same part using its stated view references. A handed companion is a separately identified component with its own geometry and quantity. Keep each part code, front/reverse drawing and relevant hardware layout in the current file package.

Does ±0.1 mm board thickness tolerance apply to every CNC feature?

Core thickness tolerance is a material requirement with its own measuring agreement. Machined positions, diameters, widths, depths and finished dimensions receive feature-specific tolerances and checks. We review them with the actual material, geometry and supplied condition.

How is material remaining after two-face machining calculated?

Compare the deepest features that overlap in the same local area, measuring from the named faces. In the assumed example, 18 mm core minus 6 mm front and 4 mm rear leaves 8 mm nominal material. The design establishes the required section and the first-part checks establish the actual result.

Can a CNC cutter produce a square inside corner?

Describe the required mating geometry and internal corner on the drawing. A rotating cutter creates a radius related to the actual tool and operation; drawing-defined relief or further work can be reviewed where the mating part needs a different clearance. Confirm the workable shape and check the actual assembly.

Should I provide machine speeds and feed rates?

Provide the required part, material, finished quality and any existing process information useful for review. The actual tool, machine, support and trial establish the machining setup. Keep the accepted program/setup linked to the current drawing and first part for repeats.

How are setup pieces, spares and nesting counted?

List them as separate agreed quantity lines beside the required parts. Keep the delivered/accepted quantity and trial-piece treatment explicit in the quote. Input-sheet consumption follows actual nesting, direction, trim and tool-clearance requirements for those pieces.

Can I request a trial part and third-party inspection?

Yes. Send the drawing and checks you want to assess. Samples are free, generally stocked, with courier cost paid by the buyer and creditable against a formal order; custom machining preparation and timing are confirmed. Third-party inspection is supported against the agreed part, order and inspection scope.