18 Grok Prompts for Technical Drawing (2026)

I've uploaded a technical drawing. Act as a mechanical drafter and walk me through it: identify each view and how they relate, list the main dimensions and what feature each one controls, explain every symbol and note, and summarise what the part is and how it would be made. Flag anything that looks ambiguous or contradictory.

Review this drawing the way a machine shop would before quoting it. List everything that would stop them making the part: missing or unreadable dimensions, untoleranced critical features, no material or finish, no projection symbol, ambiguous notes. Return each gap as a specific question the shop would have to ask.

From the uploaded drawing, extract every symbol, abbreviation and callout you can see (for example Ø, R, THRU, CBORE, TYP, the GD&T frames and the surface-finish marks). For each one give the symbol, its meaning, and what it tells the machinist. Note any that differ between ISO and ASME conventions.

Read all the dimensions and hole callouts off this drawing and return them as a table with columns Feature, Nominal, Tolerance, Notes. List holes separately with diameter, depth (or THRU) and quantity. At the end, flag any value you are not fully sure you read correctly so I can verify it against the original.

I've uploaded two revisions of the same drawing, [REV A] and [REV B]. Compare them and list every difference you can see: changed dimensions or tolerances, added or removed features, edited notes, and any change to material, finish or title block. Present it as a change log and note anything that would affect fit or function.

Act as a mechanical drafter working to ASME Y14.5. I need to draw this part: [DESCRIBE PART, or say "see the uploaded photo"]. List the minimum set of orthographic views that fully defines it, tell me which face should be the front view and why, and say whether I need any section or detail views.

For this part [DESCRIBE / LIST FEATURES / or reference the uploaded image], propose a dimensioning scheme: which faces or edges to use as datums and why, whether each feature group should be baseline or chain dimensioned, and the order to dimension features so everything is defined exactly once and nothing is over-dimensioned.

Convert this part (uploaded photo, or the description below) into a structured drawing specification with sections for Views, Key dimensions, Tolerances, Material, Surface finish and General notes. Before you write it, ask me up to 5 clarifying questions if anything critical is missing. Description: [PASTE, or "use the image"].

Write a concise, shop-ready general-notes block and the title-block fields for a machined [MATERIAL, e.g. 6061-T6 aluminium] part called [NAME], part number [NUMBER], scale [1:2], units [mm], projection [third-angle], finish [FINISH], revision [A]. Cover default general tolerance, break-all-sharp-edges, deburring, coating and inspection. Use numbered notes like a real production drawing.

Two things. First, explain this GD&T feature control frame in plain English: [e.g. position 0.2 (M) | A | B(M) | C], covering the characteristic, the tolerance zone, the material-condition modifiers and the datum order. Second, I need to control that [REQUIREMENT, e.g. a bore stays perpendicular to the mounting face within 0.1 mm]: tell me which characteristic to use, what datums I need, and write the exact frame to put on the drawing.

Recommend a tolerancing strategy for this machined part [DESCRIBE or reference the image]. Suggest a sensible ISO 2768 general-tolerance class for the bulk of the dimensions, then list which specific features (mating diameters, hole positions, sealing faces) should get tighter individual tolerances, with a suggested value and the reason. Flag where GD&T would serve better than plus/minus.

Think step by step. Do a tolerance stack-up for this assembly: [LIST the chain of dimensions and tolerances from one interface to the other, e.g. housing bore depth 20.0 +0.1/0, spacer 5.0 ±0.05, bearing width 7.0 ±0.12]. Show the arithmetic at each step. Give me the worst-case result and the RSS (statistical) result, state whether the required clearance of [VALUE] always holds, and tell me which single tolerance to tighten first if it does not.

Use live search with sources. I'm about to put [STANDARD, e.g. ISO 2768-2] in the general notes of a new drawing. Confirm whether that standard is still current, whether it has been withdrawn, revised or superseded, what the replacement is if so, and what the practical difference means for a general-tolerance note on a machined part. Give me the exact note text you would write today, and cite every source.

Use live search with sources. I measured this part: [e.g. a forged lifting eye bolt, eye outside diameter 35 mm, shank M12 x 60, shoulder under the eye]. Find which standard catalogue parts match (DIN, ISO or ASME designations), link the datasheets, list the standard's nominal dimensions next to my measurements, and tell me whether the differences are within normal manufacturing variation or whether this is a custom part I actually need to draw.

Use live search with sources. I'm designing [PART, e.g. a spacer turned from aluminium round bar / a bracket cut from mild-steel sheet]. Before I finalise dimensions, list the standard stock sizes actually sold for [MATERIAL AND FORM, e.g. 6061 round bar / S235 sheet] in [REGION], with links. Then suggest how to adjust my nominal dimensions [LIST DIMS] so the part comes out of standard stock with minimal machining or waste.

Generate a minimal ASCII DXF (AutoCAD R12) for this geometry: [e.g. a 40 x 22 mm stepped plate with an M10 tapped hole centred, tap drill Ø8.5]. Use only LINE, CIRCLE and LWPOLYLINE entities, set units to millimetres, keep all profiles closed, and output only the DXF text so I can save it as a .dxf file. Then give me the same shape as clean, minimal SVG in millimetre units.

Write an AutoLISP routine for AutoCAD that draws this part as 2D geometry: [DESCRIBE with real dimensions, e.g. a T-slot nut profile, 40 mm wide base, 22 mm top width, 16 mm total height, M10 hole centred]. Requirements: millimetre units, closed polylines, geometry on layer PART and centrelines on layer CL, a defun I can load with APPLOAD and run as a command, and a comment on every dimension so I can edit it. Then explain in two sentences how to load and run it.

I have only a photo of a part and need a manufacturing drawing and a DXF from it. Lay out the exact step-by-step workflow to get there: how to establish real scale from the photo, what to measure, which steps a person or a dedicated tool must do versus what you can help with, and how to verify the result before I send it to a shop. Be honest about what you cannot do yourself.