{"title":"3D Printable Shop Fixtures \u0026 STL Files","description":null,"products":[{"product_id":"digital-download-pie9-3-00od-1d-clr-digital-download","title":"Pie Cut Jig 9 Degree — 1.5\" to 5\" (38.1–127mm) — Exhaust \u0026 Header Tube Cutting Template | STL Digital Download","description":"\u003cp\u003e\u003cstrong\u003eA captive, two-part indexing jig for cutting 9° pie wedges in round tube.\u003c\/strong\u003e Clamp it on, cut, rotate, cut again — cut nine lands exactly where cut one did. No marker, no tape measure, no wrap-around template that slips halfway round the tube.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eYou can buy a printed jig, or you can own the file.\u003c\/strong\u003e Bend Brothers sell a printed pie cut jig from $66; the printed jig sets on Etsy run $22 to $95. Those are good parts — but they are parts. One size, shipped to you, and when it cracks you order another. This is a file. Print that size as many times as you need, forever, on the machine already in your shop, and print the next size at 11pm the night before a deadline.\u003c\/p\u003e\u003ch3\u003eWhat you download\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSTL file for the size you choose, ready to slice — or the Bulk Pack with all 14 sizes in one purchase\u003c\/li\u003e\n\u003cli\u003e1D centreline radius geometry, 9° per cut\u003c\/li\u003e\n\u003cli\u003eA secure download link is emailed from goertz1.pro after payment. Nothing ships, nothing waits.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes\u003c\/h3\u003e\u003cp\u003e1.50\" (38.1mm) · 1.66\" (42.2mm) · 1.75\" (44.5mm) · 1.88\" (47.8mm) · 2.00\" (50.8mm) · 2.15\" (54.6mm) · 2.25\" (57.2mm) · 2.50\" (63.5mm) · 2.75\" (69.9mm) · 3.00\" (76.2mm) · 3.50\" (88.9mm) · 4.00\" (101.6mm) · 4.50\" (114.3mm) · 5.00\" (127mm)\u003c\/p\u003e\u003ch3\u003eHow many cuts do I need?\u003c\/h3\u003e\u003cp\u003eAt 9° per cut, a 90° bend takes ten cuts. It is the tighter, smoother option — more cuts, less filing, a rounder finished bend. Step up to the 15° or 18° jig when you want fewer wedges and a faster build.\u003c\/p\u003e\u003ch3\u003ePrint settings\u003c\/h3\u003e\u003cp\u003eMy official settings for every G1Pro fixture: \u003cstrong\u003e2.5 mm walls, 2.5 mm top and bottom, 20% cubic infill, support-free\u003c\/strong\u003e, printed in \u003cstrong\u003eInland PETG-CF\u003c\/strong\u003e. Print one size first and check it on your tube before you commit a whole spool.\u003c\/p\u003e\u003ch3\u003eLicence — Shop Use\u003c\/h3\u003e\u003cp\u003eBuy it once and print as many copies as you like \u003cstrong\u003efor use in your own shop, including on paying customer jobs.\u003c\/strong\u003e You may not share or resell the file itself, or print copies of the jig to sell. Need a print-and-sell licence? 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These are the fixtures off my own bench.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goertz 1 Pro","offers":[{"title":"1.50","offer_id":40802453749802,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"1.66","offer_id":40802453782570,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"1.75","offer_id":40802453815338,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"1.88","offer_id":40802453848106,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"2.00","offer_id":40802453880874,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"2.15","offer_id":40926036918314,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"2.25","offer_id":40802453913642,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"2.50","offer_id":40802453946410,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"2.75","offer_id":40802453979178,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"3.00","offer_id":40802454011946,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"3.50","offer_id":40802454044714,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"4.00","offer_id":40802454077482,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"4.50","offer_id":40802454110250,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"5.00","offer_id":40802454143018,"sku":"","price":15.0,"currency_code":"USD","in_stock":true},{"title":"Bulk Pack (All 14 Files)","offer_id":42078035378218,"sku":"","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/4507\/9338\/files\/g1pro-pie9-jig.jpg?v=1789175907"},{"product_id":"digital-download-pie15-pie-cutting-fixtures-1d-clr-digital-download","title":"Pie Cut Jig 15 Degree — 1.5\" to 6\" (38.1–152.4mm) — Exhaust \u0026 Header Tube Cutting Template | STL Digital Download","description":"\u003cp\u003e\u003cstrong\u003eA captive, two-part indexing jig for cutting 15° pie wedges in round tube.\u003c\/strong\u003e Clamp it on, cut, rotate, cut again — cut six lands exactly where cut one did. No marker, no tape measure, no wrap-around template that slips halfway round the tube.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eYou can buy a printed jig, or you can own the file.\u003c\/strong\u003e Bend Brothers sell a printed pie cut jig from $66; the printed jig sets on Etsy run $22 to $95. Those are good parts — but they are parts. One size, shipped to you, and when it cracks you order another. This is a file. Print that size as many times as you need, forever, on the machine already in your shop, and print the next size at 11pm the night before a deadline.\u003c\/p\u003e\u003ch3\u003eWhat you download\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSTL file for the size you choose, ready to slice — or the Bulk Pack with all 15 sizes (1.50\" to 6.00\") in one purchase\u003c\/li\u003e\n\u003cli\u003e1D centreline radius geometry, 15° per cut\u003c\/li\u003e\n\u003cli\u003eA secure download link is emailed from goertz1.pro after payment. Nothing ships, nothing waits.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes\u003c\/h3\u003e\u003cp\u003e1.50\" (38.1mm) · 1.66\" (42.2mm) · 1.75\" (44.5mm) · 1.88\" (47.8mm) · 2.00\" (50.8mm) · 2.15\" (54.6mm) · 2.25\" (57.2mm) · 2.50\" (63.5mm) · 2.75\" (69.9mm) · 3.00\" (76.2mm) · 3.50\" (88.9mm) · 4.00\" (101.6mm) · 4.50\" (114.3mm) · 5.00\" (127mm) · 6.00\" (152.4mm)\u003c\/p\u003e\u003ch3\u003eHow many cuts do I need?\u003c\/h3\u003e\u003cp\u003eAt 15° per cut, a 90° bend takes six cuts. This is the everyday header and exhaust angle — the best trade between weld time and a clean radius. Drop to 9° when you want a smoother bend, step to 18° when you want it done faster.\u003c\/p\u003e\u003ch3\u003ePrint settings\u003c\/h3\u003e\u003cp\u003eMy official settings for every G1Pro fixture: \u003cstrong\u003e2.5 mm walls, 2.5 mm top and bottom, 20% cubic infill, support-free\u003c\/strong\u003e, printed in \u003cstrong\u003eInland PETG-CF\u003c\/strong\u003e. Print one size first and check it on your tube before you commit a whole spool.\u003c\/p\u003e\u003ch3\u003eLicence — Shop Use\u003c\/h3\u003e\u003cp\u003eBuy it once and print as many copies as you like \u003cstrong\u003efor use in your own shop, including on paying customer jobs.\u003c\/strong\u003e You may not share or resell the file itself, or print copies of the jig to sell. Need a print-and-sell licence? Get in touch.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eDesigned and drawn by James Goertz, G1Pro — building intake manifolds by hand since 2009, hundreds of them. 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This holds the tube round while you cut it square.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNo tape measure, no wrap, no marker.\u003c\/strong\u003e The fixture sets the cut, so part number four is identical to part number one.\u003c\/p\u003e\u003ch3\u003eWhat you download\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSTL file for the size band you choose — or the Bulk Pack with all three\u003c\/li\u003e\n\u003cli\u003eSmall 1\"–2\" (25.4–50.8mm) · Medium 2\"–3\" (50.8–76.2mm) · Large 3.5\"–5\" (88.9–127mm)\u003c\/li\u003e\n\u003cli\u003eInstant download at checkout. Nothing ships.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePrint settings\u003c\/h3\u003e\u003cp\u003eMy official settings for every G1Pro fixture: \u003cstrong\u003e2.5 mm walls, 2.5 mm top and bottom, 20% cubic infill, support-free\u003c\/strong\u003e, printed in \u003cstrong\u003eInland PETG-CF\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eLicence — Shop Use\u003c\/h3\u003e\u003cp\u003ePrint as many copies as you like \u003cstrong\u003efor use in your own shop, including on paying customer jobs.\u003c\/strong\u003e You may not share or resell the file, or print copies of the fixture to sell. Print-and-sell licences available — ask.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eDrawn by James Goertz, G1Pro. 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Build headers around a printed engine at 2am without a hoist, a crane or a bare block sitting in your bay for six weeks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe steel mock-up block that does this job sells for $309.\u003c\/strong\u003e There are free LS3 models floating around — they are render meshes. They are not watertight, not to print tolerance, and the mounting geometry is decorative. This one is built to be printed and measured against.\u003c\/p\u003e\u003ch3\u003eWhat you download\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTEP\u003c\/strong\u003e — native solid, so you can bolt your own parts to it in Fusion, SolidWorks or Onshape\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTL\u003c\/strong\u003e — watertight, print-ready\u003c\/li\u003e\n\u003cli\u003eCorrect deck height, bore spacing, bellhousing pattern, motor mount and accessory locations\u003c\/li\u003e\n\u003cli\u003eSectioned to fit a 256mm bed\u003c\/li\u003e\n\u003cli\u003eInstant download at checkout. Nothing ships.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat people use it for\u003c\/h3\u003e\u003cp\u003eHeader and manifold design without the engine present · engine bay fitment before you buy the swap · checking accessory clearance · CAD reference for a part you're drawing · a shop display that doesn't weigh 400 pounds.\u003c\/p\u003e\u003ch3\u003eLicence — Shop Use\u003c\/h3\u003e\u003cp\u003ePrint as many copies as you like \u003cstrong\u003efor use in your own shop, including on paying customer jobs and in design work you're paid for.\u003c\/strong\u003e You may not share or resell the file itself. Print-and-sell licences available — ask.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eDrawn by James Goertz, G1Pro. I built this model because I needed it to design manifolds — it's the same file I work from.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goertz 1 Pro","offers":[{"title":"Default Title","offer_id":42073403916330,"sku":"","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/4507\/9338\/files\/g1pro-ls3-engine.jpg?v=1789175921"},{"product_id":"cathedraldigitaldownload","title":"LS Cathedral Port Block \u0026 Cylinder Heads 3D Model — Print-Ready STEP \u0026 STL — Swap \u0026 Header Mockup","description":"\u003cp\u003e\u003cstrong\u003eA dimensionally correct cathedral port block and heads you can print and hold.\u003c\/strong\u003e LS1, LS6, 5.3, 6.0 — the engines most swaps actually start with. Mock it on the bench instead of hanging a long block in the bay to check one clearance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe steel mock-up block that does this job sells for $309.\u003c\/strong\u003e The free models are render meshes — not watertight, not to print tolerance, mounting geometry decorative. This one is built to be printed and measured against.\u003c\/p\u003e\u003ch3\u003eWhat you download\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTEP\u003c\/strong\u003e — native solid, so you can bolt your own parts to it in Fusion, SolidWorks or Onshape\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTL\u003c\/strong\u003e — watertight, print-ready\u003c\/li\u003e\n\u003cli\u003eCorrect deck height, bore spacing, bellhousing pattern, motor mount and accessory locations, cathedral port geometry\u003c\/li\u003e\n\u003cli\u003eSectioned to fit a 256mm bed\u003c\/li\u003e\n\u003cli\u003eInstant download at checkout. Nothing ships.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat people use it for\u003c\/h3\u003e\u003cp\u003eHeader and manifold design without the engine present · swap fitment before you buy · accessory and steering shaft clearance · CAD reference for a part you're drawing.\u003c\/p\u003e\u003ch3\u003eLicence — Shop Use\u003c\/h3\u003e\u003cp\u003ePrint as many copies as you like \u003cstrong\u003efor use in your own shop, including on paying customer jobs and in design work you're paid for.\u003c\/strong\u003e You may not share or resell the file itself. Print-and-sell licences available — ask.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eDrawn by James Goertz, G1Pro. 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This one references the bend itself.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eYou can buy a printed fixture, or you can own the file.\u003c\/strong\u003e Printed jigs are good parts — but they are parts. One size, shipped to you, and when it cracks you order another. This is a file. Print that size as many times as you need, forever, on the machine already in your shop, and print the next size at 11pm the night before a deadline.\u003c\/p\u003e\u003ch3\u003eWhat you download\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSTL file for the size you choose — or the Bulk Pack with all 14 sizes\u003c\/li\u003e\n\u003cli\u003eDual radius geometry with an offset blade relief for a true tangent cut\u003c\/li\u003e\n\u003cli\u003eInstant download at checkout. Nothing ships.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes\u003c\/h3\u003e\u003cp\u003e1.50\" (38.1mm) · 1.65\" (41.9mm) · 1.75\" (44.5mm) · 1.88\" (47.8mm) · 2.00\" (50.8mm) · 2.15\" (54.6mm) · 2.25\" (57.2mm) · 2.50\" (63.5mm) · 2.75\" (69.9mm) · 3.00\" (76.2mm) · 3.50\" (88.9mm) · 4.00\" (101.6mm) · 4.50\" (114.3mm) · 5.00\" (127mm)\u003c\/p\u003e\u003ch3\u003ePrint settings\u003c\/h3\u003e\u003cp\u003eMy official settings for every G1Pro fixture: \u003cstrong\u003e2.5 mm walls, 2.5 mm top and bottom, 20% cubic infill, support-free\u003c\/strong\u003e, printed in \u003cstrong\u003eInland PETG-CF\u003c\/strong\u003e. Print one size and check it against your elbow before committing a spool.\u003c\/p\u003e\u003ch3\u003eLicence — Shop Use\u003c\/h3\u003e\u003cp\u003ePrint as many copies as you like \u003cstrong\u003efor use in your own shop, including on paying customer jobs.\u003c\/strong\u003e You may not share or resell the file, or print copies of the jig to sell. 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Nothing ships.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePrint settings\u003c\/h3\u003e\u003cp\u003eMy official settings for every G1Pro fixture: \u003cstrong\u003e2.5 mm walls, 2.5 mm top and bottom, 20% cubic infill, support-free\u003c\/strong\u003e, printed in \u003cstrong\u003eInland PETG-CF\u003c\/strong\u003e. Print one and check the fit on your tube before committing a spool.\u003c\/p\u003e\u003ch3\u003eLicence — Shop Use\u003c\/h3\u003e\u003cp\u003ePrint as many copies as you like \u003cstrong\u003efor use in your own shop, including on paying customer jobs.\u003c\/strong\u003e You may not share or resell the file, or print copies of the jig to sell. Print-and-sell licences available — ask.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eDrawn by James Goertz, G1Pro. 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Find it out on the bench instead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe steel mock-up blocks that do this job sell for $309\u003c\/strong\u003e and nobody makes one for the Hemi at all. This is the file.\u003c\/p\u003e\u003ch3\u003eWhat you download\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTEP\u003c\/strong\u003e — native solid, so you can bolt your own parts to it in Fusion, SolidWorks or Onshape\u003c\/li\u003e\n\u003cli\u003eCorrect deck, bore spacing, bellhousing pattern, motor mount and accessory locations\u003c\/li\u003e\n\u003cli\u003eInstant download at checkout. Nothing ships.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat people use it for\u003c\/h3\u003e\u003cp\u003eHeader and manifold design without the engine present · Hemi swap fitment before you commit · frame rail and steering clearance · CAD reference for a part you're drawing.\u003c\/p\u003e\u003ch3\u003eLicence — Shop Use\u003c\/h3\u003e\u003cp\u003eUse it \u003cstrong\u003ein your own shop, including on paying customer jobs and in design work you're paid for.\u003c\/strong\u003e You may not share or resell the file itself. Print-and-sell licences available — ask.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eDrawn by James Goertz, G1Pro. This is the file behind the 6.4 Hemi manifolds I've built, including a black-coated one for a 1967 GTX.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goertz 1 Pro","offers":[{"title":"Default Title","offer_id":43974166773802,"sku":null,"price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/4507\/9338\/files\/g1pro-hemi-392-engine.jpg?v=1789176012"},{"product_id":"👉-ford-coyote-si-head-flange-14mm-injector-metal-print-stl","title":"Ford Coyote Intake Head Flange 14mm Injector — Metal Print STL — Sheet Metal Intake Manifold Build","description":"\u003cp\u003e\u003cstrong\u003eThe head flange for a Coyote sheet metal intake, ready to metal print.\u003c\/strong\u003e This is the part everything else references. Get the port shape, the bolt pattern or the injector bore wrong and the whole manifold is scrap — which is why most people building their own intake stall right here.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThis is the same flange geometry I build my own manifolds from.\u003c\/strong\u003e Not a scan, not a trace — the drawn part.\u003c\/p\u003e\u003ch3\u003eWhat you download\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTL\u003c\/strong\u003e built for metal printing — DMLS \/ SLM aluminium or stainless\u003c\/li\u003e\n\u003cli\u003eSingle injector, \u003cstrong\u003e14mm\u003c\/strong\u003e injector bore\u003c\/li\u003e\n\u003cli\u003eCorrect Coyote port shape and bolt pattern\u003c\/li\u003e\n\u003cli\u003eInstant download at checkout. Nothing ships.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you print\u003c\/h3\u003e\u003cp\u003eThis is a metal print part, not a filament part. Send it to your service bureau as-is; leave machining stock on the sealing face if your process needs it. If you would rather buy the finished printed flange from me, it's listed separately — single or dual injector.\u003c\/p\u003e\u003ch3\u003eLicence — Shop Use\u003c\/h3\u003e\u003cp\u003ePrint it \u003cstrong\u003efor your own build or for a customer's build in your shop.\u003c\/strong\u003e You may not share or resell the file, or produce flanges for sale to third parties. Print-and-sell licences available — ask.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eDrawn by James Goertz, G1Pro. Building intake manifolds by hand since 2009 — hundreds of them.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goertz 1 Pro","offers":[{"title":"Default Title","offer_id":43983518761002,"sku":null,"price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/4507\/9338\/files\/g1pro-coyote-head-flange_982fe39e-98cc-4ed2-9380-e795077014bd.jpg?v=1789176015"},{"product_id":"👉-nissan-vk56-si-head-flange-14mm-injector-metal-print-stl","title":"Nissan VK56 Intake Head Flange 14mm Injector — Metal Print STL — Sheet Metal Intake Manifold Build","description":"\u003cp\u003e\u003cstrong\u003eThe head flange for a VK56 sheet metal intake, ready to metal print.\u003c\/strong\u003e This is the part everything else references. Get the port shape, the bolt pattern or the injector bore wrong and the whole manifold is scrap — which is why most people building their own VK56 intake never start.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThere is almost nothing available for this engine.\u003c\/strong\u003e Four vendors worldwide sell a VK56 intake and only one of them is fabricated sheet metal — in New Zealand. If you're building your own, this is where it begins.\u003c\/p\u003e\u003ch3\u003eWhat you download\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTL\u003c\/strong\u003e built for metal printing — DMLS \/ SLM aluminium or stainless\u003c\/li\u003e\n\u003cli\u003eSingle injector, \u003cstrong\u003e14mm\u003c\/strong\u003e injector bore\u003c\/li\u003e\n\u003cli\u003eCorrect VK56 port shape and bolt pattern\u003c\/li\u003e\n\u003cli\u003eInstant download at checkout. Nothing ships.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBefore you print\u003c\/h3\u003e\u003cp\u003eThis is a metal print part, not a filament part. Send it to your service bureau as-is; leave machining stock on the sealing face if your process needs it. Titan, Armada, Patrol Y62, VK56DE and VK56VD builds.\u003c\/p\u003e\u003ch3\u003eLicence — Shop Use\u003c\/h3\u003e\u003cp\u003ePrint it \u003cstrong\u003efor your own build or for a customer's build in your shop.\u003c\/strong\u003e You may not share or resell the file, or produce flanges for sale to third parties. Print-and-sell licences available — ask.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eDrawn by James Goertz, G1Pro. Building intake manifolds by hand since 2009 — hundreds of them.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goertz 1 Pro","offers":[{"title":"Default Title","offer_id":43983530360874,"sku":null,"price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/4507\/9338\/files\/g1pro-vk56-head-flange.jpg?v=1789176020"},{"product_id":"header-builders-starter-set-1-66-1-75-2-00-in-9-15-degree-pie-cut-jigs-stl-digital-download","title":"Header Builder's Starter Set — 1.66\" 1.75\" 2.00\" in 9 \u0026 15 Degree — Pie Cut Jigs | STL Digital Download","description":"\u003cp\u003e\u003cstrong\u003eThe three tube sizes most headers are actually built from, in both working angles. Six files.\u003c\/strong\u003e 1.66\" (42.2mm), 1.75\" (44.5mm) and 2.00\" (50.8mm), each with a 9° and a 15° pie cut jig.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy this set.\u003c\/strong\u003e One size is not a build. A real header needs at least two or three primary diameters and more than one cut angle — 15° for the long sweeps, 9° where the bend is tight or on show. Buying those one at a time costs more and you still end up short mid-job.\u003c\/p\u003e\u003ch3\u003eWhat you download\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSix STL files, ready to slice\u003c\/li\u003e\n\u003cli\u003e1.66\" 9° · 1.66\" 15° · 1.75\" 9° · 1.75\" 15° · 2.00\" 9° · 2.00\" 15°\u003c\/li\u003e\n\u003cli\u003e1D centreline radius geometry throughout\u003c\/li\u003e\n\u003cli\u003eA secure download link is emailed from goertz1.pro after payment. Nothing ships.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe maths\u003c\/h3\u003e\u003cp\u003eSix files bought singly is $90. This is $49. The physical tooling that covers the same three sizes starts at $260.\u003c\/p\u003e\u003ch3\u003eSuggested print settings\u003c\/h3\u003e\u003cp\u003ePLA+ or PETG, 0.2mm layers, 4 perimeters, 30% infill. PETG or ASA if the jig will sit near hot work.\u003c\/p\u003e\u003ch3\u003eLicence — Shop Use\u003c\/h3\u003e\u003cp\u003ePrint as many copies as you like \u003cstrong\u003efor use in your own shop, including on paying customer jobs.\u003c\/strong\u003e You may not share or resell the file, or print copies of the jig to sell. Print-and-sell licences available — ask.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eDrawn by James Goertz, G1Pro. Building intake manifolds by hand since 2009 — hundreds of them.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goertz 1 Pro","offers":[{"title":"Default Title","offer_id":44710346620970,"sku":null,"price":49.0,"currency_code":"USD","in_stock":true}]}],"url":"https:\/\/goertz1.pro\/collections\/3d-printable-shop-fixtures-stl-files.oembed?page=2","provider":"Goertz 1 Pro","version":"1.0","type":"link"}