Datasets:

maryzhang
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image-dataset-guideline

# stringclasses 8 values	Text Entry stringlengths 17 165	Topic stringlengths 3 28	Source stringclasses 74 values	Good/Bad Practice? stringclasses 2 values	Reasoning Type stringclasses 10 values	Feature Type stringlengths 3 27	Source Link (Interview/Website/etc) stringclasses 68 values	Manufacturing Type stringclasses 61 values	Pontential Prompt Type stringclasses 6 values	Explanation stringlengths 34 205	Topic_local null
Sample	Maintain a minimum edge distance of 1.5 hole diameter to prevent breakout.	Fasteners	DFM Guideline	Yes	Rule-based	Hole	NASA Fastener Design Manual	Assembly/Fastening	Ask-Back	Preference-based; confirm desired level of automation.	null
1	Keep CAD models fully constrained to prevent parts from moving unpredictably in assemblies.	Parametric Modeling	Interview	Yes	Rule-based	Constraints		CAD/Assembly	Ask-Back	Preference-based; confirm desired level of automation.	null
2	Avoid unconstrained sketches, they make assemblies non-deterministic and difficult to modify.	Assembly Design	Interview	No	Rule-based	Constraints		CAD/Assembly	Ask-Back	Preference-based; confirm desired level of automation.	null
3	Ensure holes designed for fasteners are slightly larger than the nominal fastener size to account for tolerance.	Tolerancing	Interview	Yes	Heuristic	Hole		Assembly/Fastening	Ask-Back	Missing tolerance can cause rework and fit issues.	null
4	Do not design overly deep holes or thin walls that are difficult or impossible to machine.	Machining	Interview	No	Rule-based	Hole/Wall		CNC Machining	Heuristic Suggestion	Potential DFM concern; verify against context.	null
5	Aesthetic features like fillets or chamfers should not interfere with manufacturability or tool access.	Design for Manufacturability	Interview	No	Heuristic	Fillet/Chamfer		CNC Machining	Heuristic Suggestion	Potential DFM concern; verify against context.	null
6	Use as few sketches as possible while maintaining full parametric relationships ‚ simpler sketches reduce model complexity.	CAD Best Practices	Interview	Yes	Strategy-based	Model		CAD Modeling	Ask-Back	Preference-based; confirm desired level of automation.	null
	Check model sanity before fabrication ‚ basic DFM rules can prevent avoidable errors.	Design Verification	Interview	Yes	Checklist-based	Model		General DFM	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	tools should provide deterministic outputs ‚ engineers need repeatable, controllable results for trust.	in Manufacturing	Interview	Yes	Principle-based	System		/Software	Ask-Back	Preference-based; confirm desired level of automation.	null
	chatbots may miss nuanced design reasoning ‚ physical intuition and edge cases matter.	Limitations	Interview	No	Conceptual	Assistant		/Software	Ask-Back	Preference-based; confirm desired level of automation.	null
	An ideal tool would combine a DFM checklist with explanations and external learning links.	Design Opportunities	Interview	Yes	Educational	System		/Software	Ask-Back	Preference-based; confirm desired level of automation.	null
	The maximum depth of holes we recommend is 4 x the nominal diameter.	Hole Depth	Hubs ‚ CNC video	Yes	Rule-based	Hole	https://www.hubs.com/videos/design-cnc-machining/	CNC Milling	Direct Check	Deep holes risk tool deflection and poor chip evacuation.	null
	10 x the nominal diameter is typical and 40 x the nominal diameter is feasible.	Hole Depth	Hubs ‚ CNC video	Yes	Capability	Hole	https://www.hubs.com/videos/design-cnc-machining/	CNC Milling	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Holes with standard diameter are preferred.	Hole Sizing	Hubs ‚ CNC video	Yes	Heuristic	Hole	https://www.hubs.com/videos/design-cnc-machining/	CNC Milling	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Holes with non-standard diameter must be machined with an end mill tool.	Hole Sizing	Hubs ‚ CNC video	Yes	Fact	Hole	https://www.hubs.com/videos/design-cnc-machining/	CNC Milling	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Blind holes machined with a drill have a conical floor (135o angle).	Drilled Holes	Hubs ‚ CNC video	Yes	Fact	Hole	https://www.hubs.com/videos/design-cnc-machining/	CNC Milling	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Holes machined with an end mill tool will be flat.	Milled Holes	Hubs ‚ CNC video	Yes	Fact	Hole	https://www.hubs.com/videos/design-cnc-machining/	CNC Milling	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Walls thinner than 0.020 in. (0.5mm) typically do not survive the machining process.	Wall Thickness	Protolabs ‚ Turning guidelines	No	Rule-based	Wall	https://www.protolabs.com/services/cnc-machining/cnc-turning/design-guidelines/	CNC Turning	Direct Check	Thin walls deform and cause chatter.	null
	Small features may be allowed, but the diameter in any region should not be less than 0.030 in. (0.76mm).	Feature Size	Protolabs ‚ Turning guidelines	Yes	Rule-based	Small Feature	https://www.protolabs.com/services/cnc-machining/cnc-turning/design-guidelines/	CNC Turning	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Sharp conical points are allowed; angles should be greater than 30 degrees.	Angles	Protolabs ‚ Turning guidelines	Yes	Rule-based	Point/Chamfer	https://www.protolabs.com/services/cnc-machining/cnc-turning/design-guidelines/	CNC Turning	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Typically, Protolabs can maintain a machining tolerance of +/- 0.005 in. (0.13mm).	Tolerances	Protolabs ‚ Turning guidelines	Yes	Fact	General	https://www.protolabs.com/services/cnc-machining/cnc-turning/design-guidelines/	CNC Turning	Ask-Back	Preference-based; confirm desired level of automation.	null
	Because milling is done with round tools, sharp internal corners cannot be achieved.	Internal Corners	Fictiv ‚ CNC design guide	Yes	Fact	Corner	https://www.fictiv.com/articles/fictiv-cnc-machining-design-guide	CNC Milling	Educational Prompt	End mills are round; internal corners require a radius.	null
	Radiused corners are required, and must be larger than the cutter to be used.	Internal Corners	Fictiv ‚ CNC design guide	Yes	Rule-based	Corner	https://www.fictiv.com/articles/fictiv-cnc-machining-design-guide	CNC Milling	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	The radius of the corner will be half the diameter of the cutting tool.	Internal Corners	Fictiv ‚ CNC design guide	Yes	Rule-based	Corner	https://www.fictiv.com/articles/fictiv-cnc-machining-design-guide	CNC Milling	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	The depth of the countersink should be no more than 60% of the material thickness.	Countersink	SendCutSend ‚ Guidelines	Yes	Rule-based	Countersink	https://sendcutsend.com/guidelines/countersinking/	Sheet Metal	Direct Check	Non-standard angles may not match fasteners.	null
	Using a countersink depth that's more than about 60% of the material thickness can start to weaken the material.	Countersink	SendCutSend ‚ Blog	No	Rule-based	Countersink	https://sendcutsend.com/blog/benefits-of-countersinking/	Sheet Metal	Direct Check	Non-standard angles may not match fasteners.	null
	Form tolerances apply to metal machined components.	Tolerances	Xometry ‚ Manufacturing Standards	Yes	Fact	General	https://www.xometry.com/manufacturing-standards/	CNC Machining	Ask-Back	Missing tolerance can cause rework and fit issues.	null
	Plastic and composite materials are typically double the tolerance amount for metals.	Tolerances	Xometry ‚ Manufacturing Standards	Yes	Fact	General	https://www.xometry.com/manufacturing-standards/	CNC Machining	Ask-Back	Missing tolerance can cause rework and fit issues.	null
	Sharp internal corners where vertical walls meet cannot be machined using any end mill due to the tool geometry.	Internal Corners	Fictiv ‚ Optimizing part design	No	Fact	Corner	https://www.fictiv.com/help/getting-started/optimizing-part-design-for-cnc-machining	CNC Milling	Educational Prompt	End mills are round; internal corners require a radius.	null
	The most common tolerance standards ... are defined by ISO 2768 and ISO 286.	Tolerances	Xometry ‚ Whitepaper	Yes	Fact	General	https://xometry.pro/wp-content/uploads/2023/07/UK-mastering-CNC-tolerances-1.pdf	CNC Machining	Ask-Back	Missing tolerance can cause rework and fit issues.	null
	CNC Turning Diameter: 3.95 in. Length: 9 in.	Capabilities	Protolabs ‚ Basic Design Guidelines	Yes	Capability	General	https://www.protolabs.com/help-center/basic-design-guidelines/	CNC Turning	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Wall Thickness: 0.020 in. Angle: 30 +/- 0.005 in.	Capabilities	Protolabs ‚ Basic Design Guidelines	Yes	Capability	General	https://www.protolabs.com/help-center/basic-design-guidelines/	CNC Turning	Direct Check	Thin walls deform and cause chatter.	null
	Flange length must be at least 4 times the material thickness.	Flange Length	Protolabs ‚ Sheet Metal guidelines	Yes	Rule-based	Flange	https://www.protolabs.com/services/sheet-metal-fabrication/design-guidelines/	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	A +/- 1 degree tolerance on all bend angles is generally acceptable in the industry.	Bend Angles	Geomiq ‚ Sheet metal guide	Yes	Rule-based	Bend	https://geomiq.com/sheet-metal-design-guide/	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Keep the inside bend radius at least equal to the material thickness.	Bend Radius	Geomiq ‚ Sheet metal guide	Yes	Rule-based	Bend	https://geomiq.com/sheet-metal-design-guide/	Sheet Metal	Direct Check	Tight bend radius can crack material or spring back.	null
	For air bending, leg/flange length should be ‚â• 4 T.	Flange Length	Xometry ‚ Sheet metal tips	Yes	Rule-based	Flange	https://xometry.pro/en/articles/sheet-metal-bending-design-tips/	Sheet Metal	Ask-Back	Preference-based; confirm desired level of automation.	null
	For bottoming, increase to ‚â• 6 T.	Flange Length	Xometry ‚ Sheet metal tips	Yes	Rule-based	Flange	https://xometry.pro/en/articles/sheet-metal-bending-design-tips/	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	When placing holes, slots, and similar features in your part design, be sure to locate them at least 4x the material thickness away from any edges or inside corners.	Feature to Edge	Protolabs ‚ Bend radii	Yes	Rule-based	Hole/Slot	https://www.protolabs.com/resources/design-tips/the-basics-of-bend-radii-in-sheet-metal/	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Holes can be at least 2.5X MT from bend edges while slots should have more clearance at 4X MT.	Hole/Slot to Bend	Xometry ‚ Sheet Metal Design Guide (PDF)	Yes	Rule-based	Hole/Slot	https://cdn2.hubspot.net/hubfs/340051/Design_Guides/Xometry_DesignGuide_SheetMetal.pdf	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Be sure to place holes and slots at least 2 times the material‚ thickness from part edges.	Hole/Slot to Edge	Xometry ‚ Sheet Metal Design Guide (PDF)	Yes	Rule-based	Hole/Slot	https://cdn2.hubspot.net/hubfs/340051/Design_Guides/Xometry_DesignGuide_SheetMetal.pdf	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	For most materials, the minimum flange length should be met for at least ~50-60% of the bend‚ length on both sides of the bend.	Flange Contact	SendCutSend ‚ Bending	Yes	Rule-based	Flange	https://sendcutsend.com/guidelines/bending/	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	The minimum edge distance should not be less than 1.5D.	Edge Distance	NASA ‚ Fastener Design Manual	Yes	Rule-based	Hole	https://ntrs.nasa.gov/api/citations/19900009424/downloads/19900009424.pdf	Assembly/Fastening	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Common design practice is to use a nominal edge distance of 2D from the fastener hole centerline.	Edge Distance	NASA ‚ Fastener Design Manual	Yes	Rule-based	Hole	https://psfeg.com/wp-content/uploads/2014/01/NASA_RP-1228.pdf	Assembly/Fastening	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	The nominal distance between fasteners is 4D.	Fastener Spacing	NASA ‚ Fastener Design Manual	Yes	Rule-based	Pattern	https://psfeg.com/wp-content/uploads/2014/01/NASA_RP-1228.pdf	Assembly/Fastening	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	The distance from the center of a bolt to an edge of a part shall not be less than 1.5 times the nominal diameter of the bolt.	Edge Distance	SC ‚ Bolted connections	Yes	Rule-based	Hole	https://www.aisc.org/globalassets/aisc/manual/15th-ed-ref-list/edge-distance-spacing-and-bearing-in-bolted-connections_lewis_1996.pdf	Assembly/Fastening	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	0.5 degrees on all vertical faces is strongly advised.	Draft	Protolabs ‚ Draft guidelines	Yes	Rule-based	Draft	https://www.protolabs.com/resources/design-tips/improving-part-moldability-with-draft/	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	1 to 2 degrees works very well in most situations.	Draft	Protolabs ‚ Draft guidelines	Yes	Rule-based	Draft	https://www.protolabs.com/resources/design-tips/improving-part-moldability-with-draft/	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	3 degrees is minimum for a shutoff (metal sliding on metal).	Draft	Protolabs ‚ Draft guidelines	Yes	Rule-based	Draft	https://www.protolabs.com/resources/design-tips/improving-part-moldability-with-draft/	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	3 degrees is required for light texture (PM-T1).	Draft	Protolabs ‚ Draft guidelines	Yes	Rule-based	Draft	https://www.protolabs.com/resources/design-tips/improving-part-moldability-with-draft/	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	5 or more degrees is required for heavy texture (PM-T2).	Draft	Protolabs ‚ Draft guidelines	Yes	Rule-based	Draft	https://www.protolabs.com/resources/design-tips/improving-part-moldability-with-draft/	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	Applying 1 to 2 degrees works well in most scenarios.	Draft	Protolabs ‚ Moldability guide	Yes	Rule-based	Draft	https://www.protolabs.com/resources/guides-and-trend-reports/designing-for-moldability-fundamental-elements/	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	1 degree of draft per 1 inch of cavity depth is a good rule of thumb.	Draft	Protolabs ‚ Wall thickness	Yes	Rule-based	Draft	https://www.protolabs.com/resources/design-tips/improving-part-design-with-uniform-wall-thickness/	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	In general, the recommendation is to add a minimum of 1 degree of draft per inch of mold cavity depth.	Draft	Hubs ‚ Draft angle	Yes	Rule-based	Draft	https://www.hubs.com/knowledge-base/draft-angle/	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	For every 0.1mm depth of texture, an additional 0.4-degree draft angle is recommended.	Draft/Texture	Hubs ‚ Draft video	Yes	Rule-based	Draft	https://www.hubs.com/videos/injection-molding-draft-angles/	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	Typically, designers apply draft angles of 1.5 to 2 degrees to injection molded parts at mold depths up to 2 inches.	Draft	Fictiv ‚ Draft angle	Yes	Heuristic	Draft	https://www.fictiv.com/articles/draft-angle-injection-molding	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	Use a thickness equal to 0.5 main wall thickness.	Ribs	Hubs ‚ Injection molding guide	Yes	Rule-based	Rib	https://www.hubs.com/guides/injection-molding/	Injection Molding	Ask-Back	Preference-based; confirm desired level of automation.	null
	Define a height smaller than 3 rib thickness.	Ribs	Hubs ‚ Injection molding guide	Yes	Rule-based	Rib	https://www.hubs.com/guides/injection-molding/	Injection Molding	Direct Check	Thick ribs cause sink and warpage.	null
	Add a draft angle of at least 0.25 - 0.5.	Ribs/Draft	Hubs ‚ Injection molding guide	Yes	Rule-based	Rib	https://www.hubs.com/guides/injection-molding/	Injection Molding	Direct Check	Thick ribs cause sink and warpage.	null
	Add a min. distance between ribs and walls of 4 rib thickness.	Ribs/Spacing	Hubs ‚ Injection molding guide	Yes	Rule-based	Rib	https://www.hubs.com/guides/injection-molding/	Injection Molding	Direct Check	Thick ribs cause sink and warpage.	null
	Rib Thickness - The thickness of a rib must be no more than 60% of the nominal wall thickness of the part.	Ribs	Xometry ‚ Plastic ribs	Yes	Rule-based	Rib	https://www.xometry.com/resources/injection-molding/plastic-ribs-for-injection-molding-design/	Injection Molding	Direct Check	Thick ribs cause sink and warpage.	null
	Ribs won‚Äôt precipitate sink marks and the structure uses less material, too.	Sink Marks/Ribs	Fictiv ‚ Wall thickness	Yes	Principle-based	Rib	https://www.fictiv.com/articles/wall-thickness-recommendations-for-injection-molding	Injection Molding	Direct Check	Thick ribs cause sink and warpage.	null
	Bends ¬± 1 degree	Tolerances	Protolabs ‚ Basic Design Guidelines	Yes	Rule-based	Bend	https://www.protolabs.com/help-center/basic-design-guidelines/	Sheet Metal	Ask-Back	Missing tolerance can cause rework and fit issues.	null
	Hole Diameters ¬± 0.005 in.	Tolerances	Protolabs ‚ Basic Design Guidelines	Yes	Rule-based	Hole	https://www.protolabs.com/help-center/basic-design-guidelines/	Sheet Metal	Ask-Back	Missing tolerance can cause rework and fit issues.	null
	Edge to Edge/Hole; Hole to Hole ¬± 0.005 in.	Tolerances	Protolabs ‚ Basic Design Guidelines	Yes	Rule-based	Feature spacing	https://www.protolabs.com/help-center/basic-design-guidelines/	Sheet Metal	Ask-Back	Missing tolerance can cause rework and fit issues.	null
	Hardware edge/Hole ¬± 0.010 in.	Tolerances	Protolabs ‚ Basic Design Guidelines	Yes	Rule-based	Hardware	https://www.protolabs.com/help-center/basic-design-guidelines/	Sheet Metal	Ask-Back	Missing tolerance can cause rework and fit issues.	null
	Bend to edge ¬± 0.010 in.	Tolerances	Protolabs ‚ Basic Design Guidelines	Yes	Rule-based	Bend	https://www.protolabs.com/help-center/basic-design-guidelines/	Sheet Metal	Ask-Back	Missing tolerance can cause rework and fit issues.	null
	Multiple surfaces ¬± 0.030 in.	Tolerances	Protolabs ‚ Basic Design Guidelines	Yes	Rule-based	General	https://www.protolabs.com/help-center/basic-design-guidelines/	Sheet Metal	Ask-Back	Missing tolerance can cause rework and fit issues.	null
	Ovality at a tube bend should not exceed 10% (5% to 8% typical).	Tube Bending	Xometry ‚ Manufacturing Standards	Yes	Rule-based	Tube	https://www.xometry.com/manufacturing-standards/	Forming	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Tube end point tolerance is +/- .063‚ to ensure fit and assembly.	Tube Bending	Xometry ‚ Manufacturing Standards	Yes	Rule-based	Tube	https://www.xometry.com/manufacturing-standards/	Forming	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Avoid Deep Features	Feature Depth	Fictiv ‚ 10 tips	No	Heuristic	Pocket/Slot	https://www.fictiv.com/articles/10-tips-to-improve-your-cad-designs-for-cnc-machining	CNC Milling	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Avoid Sharp Internal Corners	Internal Corners	Fictiv ‚ 10 tips	Yes	Heuristic	Corner	https://www.fictiv.com/articles/10-tips-to-improve-your-cad-designs-for-cnc-machining	CNC Milling	Educational Prompt	End mills are round; internal corners require a radius.	null
	This limits, for example, the minimum wall thickness that a CNC machined part can have and the maximum aspect ratio of tall features.	Stiffness Limits	Hubs ‚ CNC machining guide	Yes	Principle-based	Wall/Tall feature	https://www.hubs.com/guides/cnc-machining/	CNC Machining	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	The difference between 82 and 90 countersinks	Countersink	SendCutSend ‚ Video	Yes	Fact	Countersink	https://sendcutsend.com/education/video/adding-countersinking-to-your-parts/	Sheet Metal	Direct Check	Non-standard angles may not match fasteners.	null
	How to model and verify a countersink in your CAD design	Countersink	SendCutSend ‚ Video	Yes	Educational	Countersink	https://sendcutsend.com/education/video/adding-countersinking-to-your-parts/	Sheet Metal	Direct Check	Non-standard angles may not match fasteners.	null
	Rib thickness at the base should be between 50-70% of the nominal wall thickness.	Ribs	SOLIDWORKS Blog ‚ Cardinal rules	Yes	Rule-based	Rib	https://blogs.solidworks.com/solidworksblog/2015/02/the-cardinal-rules-of-designing-injection-molded-plastic-parts.html	Injection Molding	Direct Check	Thick ribs cause sink and warpage.	null
	Rib height should be 2.5 ‚ 3X the nominal wall thickness.	Ribs	SOLIDWORKS Blog ‚ Cardinal rules	Yes	Rule-based	Rib	https://blogs.solidworks.com/solidworksblog/2015/02/the-cardinal-rules-of-designing-injection-molded-plastic-parts.html	Injection Molding	Direct Check	Thick ribs cause sink and warpage.	null
	Ribs should have 0.5 ‚ 1.5 degrees of draft.	Ribs/Draft	SOLIDWORKS Blog ‚ Cardinal rules	Yes	Rule-based	Rib	https://blogs.solidworks.com/solidworksblog/2015/02/the-cardinal-rules-of-designing-injection-molded-plastic-parts.html	Injection Molding	Direct Check	Thick ribs cause sink and warpage.	null
	The distance of holes from the bend should be at least 2.5x the material thickness.	Hole to Bend	Xometry ‚ AU sheet metal tips	Yes	Rule-based	Hole	https://xometry.au/design-tips-sheet-metal-bending/	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Slots should be placed at a distance of at least 4x the material thickness from the bend edges.	Slot to Bend	Xometry ‚ AU sheet metal tips	Yes	Rule-based	Slot	https://xometry.au/design-tips-sheet-metal-bending/	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Protolabs provides a range of internal bend radius tooling options between 0.01 in. and 1 in.	Bend Radius Tooling	Protolabs ‚ Sheet metal toolkit	Yes	Capability	Bend	https://www.protolabs.com/resources/design-for-sheet-metal-fabrication-toolkit/	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Flange length must be at least 4 times the material thickness.	Flange Length	Geomiq ‚ Sheet metal guide	Yes	Rule-based	Flange	https://geomiq.com/sheet-metal-design-guide/	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	For thin materials, buckling between fasteners can be a problem.	Fastener Spacing	NASA ‚ Fastener Design Manual	Yes	Principle-based	Pattern	https://psfeg.com/wp-content/uploads/2014/01/NASA_RP-1228.pdf	Assembly/Fastening	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Rib thickness should not exceed 60 percent of the nominal thickness.	Ribs	GrabCAD ‚ Guidelines	Yes	Rule-based	Rib	https://grabcad.com/tutorials/helpful-injection-molding-design-guidelines	Injection Molding	Direct Check	Thick ribs cause sink and warpage.	null
	The distance between two ribs should be 2 ‚ 3X the nominal wall thickness.	Ribs Spacing	SOLIDWORKS Blog ‚ Cardinal rules	Yes	Rule-based	Rib	https://blogs.solidworks.com/solidworksblog/2015/02/the-cardinal-rules-of-designing-injection-molded-plastic-parts.html	Injection Molding	Direct Check	Thick ribs cause sink and warpage.	null
	Holes and slots should be at least 6X MT from each other.	Feature Spacing	Xometry ‚ Sheet Metal Design Guide (PDF)	Yes	Rule-based	Hole/Slot	https://cdn2.hubspot.net/hubfs/340051/Design_Guides/Xometry_DesignGuide_SheetMetal.pdf	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Holes of .100‚ or smaller in diameter may be slightly larger than standard tolerances.	Small Holes	Xometry ‚ Manufacturing Standards	Yes	Fact	Hole	https://www.xometry.com/manufacturing-standards/	CNC Machining	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	If a square part needs to mate into a square hole, then other techniques ‚ like drilling relief holes in the corners ‚ can help.	Relief Holes	Fictiv ‚ 10 tips	Yes	Heuristic	Corner/Hole	https://www.fictiv.com/articles/10-tips-to-improve-your-cad-designs-for-cnc-machining	CNC Milling	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	A good rule of thumb is to apply 1 degree of draft per 1 inch of cavity depth.	Draft	Protolabs ‚ Injection basics	Yes	Rule-based	Draft	https://www.protolabs.com/resources/design-tips/injection-molding-basics/	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	In most situations, 2 degrees is the amount to look for.	Draft	Protolabs ‚ Draft analysis (SOLIDWORKS)	Yes	Heuristic	Draft	https://www.protolabs.com/resources/blog/design-validation-with-solidworks-injection-molding/	Injection Molding	Direct Check	Draft eases ejection and protects surfaces.	null
	Snap-fit joints are a very simple, economical and rapid way of joining two parts without fasteners or tools.	Snap-Fits	Hubs ‚ Injection molding guide	Yes	Fact	Snap-fit	https://www.hubs.com/guides/injection-molding/	Injection Molding	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	The most common internal bend radius (and our default) is 0.030 in. (0.762mm).	Bend Radius	Protolabs ‚ 8 mistakes in sheet metal	Yes	Rule-based	Bend	https://www.protolabs.com/resources/design-tips/8-mistakes-to-avoid-when-designing-sheet-metal-parts/	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Be sure to place holes away from bends at a distance of at least 2.5 times the material‚ thickness plus the bend radius.	Hole to Bend	Xometry ‚ Sheet Metal Design Guide (PDF)	Yes	Rule-based	Hole	https://cdn2.hubspot.net/hubfs/340051/Design_Guides/Xometry_DesignGuide_SheetMetal.pdf	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Part Length Over 60" ‚ Angularity Tolerance 1.	Tolerances	Xometry ‚ Manufacturing Standards	Yes	Rule-based	General	https://www.xometry.com/manufacturing-standards/	CNC Machining	Ask-Back	Missing tolerance can cause rework and fit issues.	null
	If possible, the countersink should not be deeper than 60% of the material thickness.	Countersink	SendCutSend ‚ Tapping & countersinking	Yes	Rule-based	Countersink	https://sendcutsend.com/blog/tapping-laser-cut-holes-and-designing-for-countersinking/	Sheet Metal	Direct Check	Non-standard angles may not match fasteners.	null
	The minimum edge distance ... is at least 1.5 times the bolt diameter.	Edge Distance	NASA-STD-5020	Yes	Rule-based	Hole	https://s3vi.ndc.nasa.gov/ssri-kb/static/resources/nasa-std-5020.pdf	Assembly/Fastening	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	The larger the corner radius, the fewer passes the machine will take and the lower the cost.	Internal Corners	Fictiv ‚ Optimizing part design	Yes	Principle-based	Corner	https://www.fictiv.com/help/getting-started/optimizing-part-design-for-cnc-machining	CNC Milling	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Additional Notes on CNC Turning Guidelines	Capabilities	Protolabs ‚ Turning service	Yes	Fact	General	https://www.protolabs.com/services/cnc-machining/cnc-turning/	CNC Turning	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Hole and Slot Dimensions: Keep hole and slot diameters at least as large as 1X MT.	Holes/Slots	Xometry ‚ Sheet Metal Design Guide (PDF)	Yes	Rule-based	Hole/Slot	https://cdn2.hubspot.net/hubfs/340051/Design_Guides/Xometry_DesignGuide_SheetMetal.pdf	Sheet Metal	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	CNC Machining Design Guide	General	Geomiq ‚ CNC Design Guide	Yes	Fact	General	https://geomiq.com/cnc-design-guide/	CNC Machining	Heuristic Suggestion	Potential DFM concern; verify against context.	null
	Overhangs exceeding 45 typically require support.	Overhangs	Autodesk ‚ Additive design guide	Yes	Rule-based	Surface	https://www.autodesk.com/solutions/additive-manufacturing/overview	3D Printing	Direct Check	Steeper overhangs sag without support in FFF/SLA.	null

End of preview. Expand in Data Studio

Dataset from Google Sheets

This dataset was automatically extracted from Google Sheets with image columns.

Dataset Structure

Original Columns:

#
Text Entry
Topic
Source
Good/Bad Practice?
Reasoning Type
Feature Type
Source Link (Interview/Website/etc)
Manufacturing Type
Pontential Prompt Type
Explanation

Image Columns (processed):

Topic_local: Local path to downloaded image (originally from 'Topic')

Statistics:

Total records: 382
Image columns found: 1
Total images downloaded: 0

Usage

from datasets import load_dataset, Image

# Load from Hugging Face Hub
dataset = load_dataset("your-username/your-dataset-name")

# Or load locally
from datasets import Dataset
import json

with open("dataset.json", "r") as f:
    data = json.load(f)

dataset = Dataset.from_list(data)

# Cast image columns
image_columns = ['"Topic_local"']
for col in image_columns:
    if col in dataset.column_names:
        dataset = dataset.cast_column(col, Image())

Image Processing Notes

Images were automatically downloaded from the following URL columns:

Topic

Source

Extracted from Google Sheets on 2025-11-30 Sheet URL: Google Sheets

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