{"product_id":"stl-print-it-yourself-shock-pump-needle-adapter","title":"Digital STL (Print yourself) | Shock Pump Needle Adapter","description":"\u003csection style=\"max-width: 800px; margin: auto; padding: 2rem; font-family: sans-serif; line-height: 1.6;\" class=\"tool-description\"\u003e\u003c!-- PRODUCT NAME PLACEHOLDER: swap \"needle fill tool\" for the real product name before publishing. --\u003e\n\u003cdiv style=\"background-color: #fce4ec; padding: 1rem; border: 2px solid #c2185b; border-radius: 4px; margin: 0 0 1.5rem 0;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold; color: #880e4f;\"\u003e⚠️ Digital Product — No Physical Item Shipped\u003c\/p\u003e\n\u003cp style=\"margin: 0.75rem 0 0 0;\"\u003eThis product includes \u003cstrong\u003eSTL files only\u003c\/strong\u003e. You must print it yourself using a 3D printer. No physical product will be shipped.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003eThe digital STL version of our lightweight needle fill tool for charging the IFP \/ bladder chamber through the rubber plug \/ pellet. This is the \u003cstrong\u003eHome Mechanic (Lite)\u003c\/strong\u003e version, and it is \u003cstrong\u003e100% 3D printed\u003c\/strong\u003e, shock pump threads included.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"background-color: #e3f2fd; padding: 1rem; border-left: 6px solid #1976d2; margin: 1.5rem 0;\"\u003e\u003cstrong\u003eIt runs off the shock pump you already own.\u003c\/strong\u003e The same pump you use to set up your fork threads right onto this tool. No nitrogen tank, no regulator, no complicated setup: this is essentially a shock pump adapter for needle filling.\u003c\/p\u003e\n\u003cdiv style=\"background-color: #fce4ec; padding: 1rem; border: 2px solid #c2185b; border-radius: 4px; margin: 1.5rem 0;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold; color: #880e4f;\"\u003e⚠️ Print settings are critical — read them before you print\u003c\/p\u003e\n\u003cp style=\"margin: 0.75rem 0 0 0;\"\u003eThis is a pressure tool. It only holds pressure if it is printed \u003cstrong\u003ein PETG\u003c\/strong\u003e, with \u003cstrong\u003e15 walls\u003c\/strong\u003e, exactly as described in the Print Specifications section. The usual \"4–5 walls with 100% infill\" approach \u003cstrong\u003ewill leak\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #fce4ec; padding: 1rem; border: 2px solid #c2185b; border-radius: 4px; margin: 1.5rem 0;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold; color: #880e4f;\"\u003e⚠️ Releasing pressure? Disconnect the shock pump first\u003c\/p\u003e\n\u003cp style=\"margin: 0.75rem 0 0 0;\"\u003eThe tool has \u003cstrong\u003eno Schrader valve core\u003c\/strong\u003e, on purpose, so it never traps pressure.\u003c\/p\u003e\n\u003cp style=\"margin: 0.75rem 0 0 0;\"\u003eFilling is simple: the pressure climbs gradually and you control it. Going into a chamber that \u003cem\u003ealready\u003c\/em\u003e holds pressure is the one case to watch. With the pump disconnected, that pressure vents harmlessly out the open end. With the pump attached it has nowhere to go, and the tool can see the full chamber pressure at once, past its rating.\u003c\/p\u003e\n\u003cp style=\"margin: 0.75rem 0 0 0; margin-bottom: 0;\"\u003eSo release pressure with the \u003cstrong\u003epump disconnected\u003c\/strong\u003e, or with a bare needle. And never connect the tool to a chamber above its rating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- TWO VERSIONS --\u003e\n\u003cdetails style=\"background-color: #e3f2fd; padding: 1rem; border-left: 6px solid #1976d2; margin: 1.5rem 0;\"\u003e\n\u003csummary style=\"font-weight: bold; cursor: pointer;\"\u003eTwo sealing versions included: press-fit or O-ring\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 1rem;\"\u003e\n\u003cp style=\"margin-top: 0;\"\u003eThe STL pack gives you two versions of the adapter to play with. Print one or both.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003e\u003cstrong\u003ePress-fit version:\u003c\/strong\u003e no O-ring at all. It seals with a press fit, so there is nothing extra to buy.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003e\u003cstrong\u003eO-ring version:\u003c\/strong\u003e designed for a standard \u003cstrong\u003e-007 O-ring\u003c\/strong\u003e (3.68 mm ID x 1.78 mm). They are very cheap, and there is a good chance you already have a few in your parts bin.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem; margin-bottom: 0;\"\u003eOnly the Home Mechanic (Lite) version is available as an STL. The Deluxe version, with stainless steel shock pump threads, is sold as a physical tool only.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- PRINT SPECS --\u003e\n\u003cdetails style=\"background-color: #fff8e1; padding: 1rem; border-left: 6px solid #ffa000; margin: 1.5rem 0;\"\u003e\n\u003csummary style=\"font-weight: bold; cursor: pointer;\"\u003ePrint specifications — very important\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 1rem;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 1.2rem;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e PETG only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWalls:\u003c\/strong\u003e 15 (this makes the part fully solid)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInfill:\u003c\/strong\u003e none needed, the 15 walls fill the whole part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLayer height:\u003c\/strong\u003e 0.12 mm from 0 to 8 mm height (the shock pump threads), using a height range modifier. The rest can use your normal layer height.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrientation:\u003c\/strong\u003e print it standing on the \u003cstrong\u003eSchrader face\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrim:\u003c\/strong\u003e 10 mm wide, 0.1 mm brim-object gap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-top: 1rem;\"\u003e\u003cstrong\u003eWhy 15 walls and not 4–5 walls with 100% infill?\u003c\/strong\u003e Infill leaves tiny voids and paths between the walls and the infill. Under pressure, air finds those paths and the part leaks. With 15 walls, the part is 100% solid with no voids and no way for the air to get through. With this technique, the printed part holds high pressure with almost no leaks. As far as we know, nobody had done this before.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003e\u003cstrong\u003eWhy PETG only?\u003c\/strong\u003e PETG is the only material that keeps good dimensional accuracy while also giving very strong layer bonding. Other materials can rip open along the layers under pressure. \u003cstrong\u003eDo not print this in anything other than PETG.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem; margin-bottom: 0;\"\u003e\u003cstrong\u003eWhy 0.12 mm on the threads?\u003c\/strong\u003e Fine layers are what give the shock pump threads their accuracy and strength. You can print the whole part at 0.12 mm if you want, it just takes a lot longer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- WHAT'S INCLUDED --\u003e\n\u003cdetails style=\"background-color: #e8f5e9; padding: 1rem; border-left: 6px solid #388e3c; margin: 1.5rem 0;\"\u003e\n\u003csummary style=\"font-weight: bold; cursor: pointer;\"\u003eWhat's included\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 1rem;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 1.2rem;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter STL, press-fit version\u003c\/strong\u003e (no O-ring)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter STL, O-ring version\u003c\/strong\u003e (-007 O-ring)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCompression nut STL\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e3 STL files total. No physical item is shipped.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-top: 0.75rem; margin-bottom: 0;\"\u003eNot included: needles, the -007 O-ring, and the shock pump. See the needles section below for what to look for.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- COMPATIBILITY --\u003e \u003c!-- CONFIRM BEFORE PUBLISHING: the brand list below was carried over from the IFP adapter listing. Delete any brand this tool has not actually been tested on. --\u003e\n\u003cdetails style=\"background-color: #e8f5e9; padding: 1rem; border-left: 6px solid #388e3c; margin: 1.5rem 0;\"\u003e\n\u003csummary style=\"font-weight: bold; cursor: pointer;\"\u003eCompatible with\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 1rem;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 1.2rem;\"\u003e\n\u003cli\u003eFOX\u003c\/li\u003e\n\u003cli\u003eVorsprung\u003c\/li\u003e\n\u003cli\u003eÖhlins\u003c\/li\u003e\n\u003cli\u003eX-Fusion\u003c\/li\u003e\n\u003cli\u003eCane Creek\u003c\/li\u003e\n\u003cli\u003eMost other shocks with a \u003cstrong\u003erubber plug \/ pellet\u003c\/strong\u003e in the IFP or bladder chamber\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003eConnects to any shock pump or filling tool with a standard Schrader thread, including the regular shock pump you already use for your fork. No nitrogen setup required.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem; margin-bottom: 0;\"\u003eUses standard \u003cstrong\u003eLuer slip\u003c\/strong\u003e 23 gauge hypodermic needles. \u003cstrong\u003eNot Luer lock.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- PRESSURE RATING --\u003e\n\u003cdetails style=\"background-color: #fff8e1; padding: 1rem; border-left: 6px solid #ffa000; margin: 1.5rem 0;\"\u003e\n\u003csummary style=\"font-weight: bold; cursor: pointer;\"\u003ePressure rating\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 1rem;\"\u003e\n\u003cp style=\"margin-top: 0;\"\u003eThe Home Mechanic (Lite) version is rated to a \u003cstrong\u003emaximum of 200 PSI\u003c\/strong\u003e, when printed exactly to the specifications above.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003eOur own prints were pressure-vessel tested at 300 PSI, with 20 pressure tests per fitting. Your print is only as good as your printer, your filament and your settings, so if you change anything from the specs, that rating no longer applies.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003eMost suspension shocks run at around \u003cstrong\u003e200 PSI or less\u003c\/strong\u003e, which is what this tool is built around.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem; margin-bottom: 0;\"\u003e\u003cstrong\u003eNever exceed 200 PSI.\u003c\/strong\u003e Do not use this tool on high-pressure inline shocks running 500 PSI. For pressures that high, use a professionally rated tool designed for them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- DESIGN --\u003e\n\u003cdetails style=\"background-color: #e3f2fd; padding: 1rem; border-left: 6px solid #1976d2; margin: 1.5rem 0;\"\u003e\n\u003csummary style=\"font-weight: bold; cursor: pointer;\"\u003eLight enough that the needle stays straight\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 1rem;\"\u003e\n\u003cp style=\"margin-top: 0;\"\u003eHeavy metal tools with long proprietary needles bend the needle just about every time. This one is short and fully printed, so there is barely any weight hanging off the needle and it stays straight while you work. It makes the whole job a lot easier.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003eThe printed threads should get you through \u003cstrong\u003e10+ rebuilds easily\u003c\/strong\u003e. On a tester, the fitting was threaded and unthreaded \u003cstrong\u003e20+ times\u003c\/strong\u003e and still worked fine. How you store and handle the tool matters more than the number of rebuilds you do with it. And if the threads ever wear out, just print a new one.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem; margin-bottom: 0;\"\u003eThe fittings are \u003cstrong\u003elarge and robust\u003c\/strong\u003e, so you do not need to crank down on the connections. Tighten the \u003cstrong\u003eneedle a little\u003c\/strong\u003e, and the same for the \u003cstrong\u003eshock pump connection\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- NEEDLES --\u003e\n\u003cdetails style=\"background-color: #ede7f6; padding: 1rem; border-left: 6px solid #512da8; margin: 1.5rem 0;\"\u003e\n\u003csummary style=\"font-weight: bold; cursor: pointer;\"\u003eNeedles you'll need\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 1rem;\"\u003e\n\u003cp style=\"margin-top: 0;\"\u003eThe tool uses standard \u003cstrong\u003e23 gauge Luer slip hypodermic needles\u003c\/strong\u003e. It does \u003cstrong\u003enot\u003c\/strong\u003e use Luer lock needles.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003eGo with the \u003cstrong\u003e25 mm (1 inch)\u003c\/strong\u003e length. It is the shorter of the two common sizes, and the short length is what keeps the needle stiff. \u003cstrong\u003e35 mm\u003c\/strong\u003e needles are also out there, but they are a bit long for this and bend more easily.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003eBecause these are standardized medical needles, they are cheap and easy to find in most countries. Compare that to the proprietary needles on some metal tools, which run around \u003cstrong\u003e$20 for two\u003c\/strong\u003e and cannot be swapped for medical needles.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003eHere is an example of needles that work: \u003ca href=\"https:\/\/www.amazon.ca\/Dispensing-Individually-Accessories-Scientific-Industrial\/dp\/B0BYNWB9X7\"\u003e23 gauge, 25 mm needles on Amazon Canada\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem; margin-bottom: 0;\"\u003eBecause the needle is a consumable, you can swap in a fresh one whenever the tip dulls.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- HOW TO USE --\u003e\n\u003cdetails style=\"background-color: #fff3e0; padding: 1rem; border-left: 6px solid #f57c00; margin: 1.5rem 0;\"\u003e\n\u003csummary style=\"font-weight: bold; cursor: pointer;\"\u003eHow to use\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 1rem;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 1.2rem;\"\u003e\n\u003cli\u003eFit a fresh needle, tightening it only a little\u003c\/li\u003e\n\u003cli\u003eThread the tool onto your shock pump or filling tool\u003c\/li\u003e\n\u003cli\u003eInsert the needle into the \u003cstrong\u003ecentre\u003c\/strong\u003e of the pellet while rotating it gently, never forcing it\u003c\/li\u003e\n\u003cli\u003eInflate quickly to just past your target pressure, staying under 200 PSI\u003c\/li\u003e\n\u003cli\u003ePull the needle out as the gauge comes back through your target, then immediately snug the pellet\u003c\/li\u003e\n\u003cli\u003eCycle the shaft to confirm it returns smoothly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003e\u003cstrong\u003ePump quickly.\u003c\/strong\u003e The gauge will creep down slowly while the needle is in. Go a bit past the pressure you want and pull the needle as the gauge comes back through your target. Trying to sit exactly on the number and then pull is what makes it fiddly.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003e\u003cstrong\u003eDo not overtighten the needle.\u003c\/strong\u003e A little is enough for a good seal. If you crank it down hard, the male slip fitting can deform slightly. If you see a leak, snug it a bit more, but you should never need much.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem;\"\u003eNever bend the needle. Rotating gently on the way in is what keeps the tip straight and the pellet undamaged.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem; margin-bottom: 0;\"\u003eNew to needle filling? Read our full guide: \u003ca href=\"https:\/\/www.shockwaveparts.com\/blogs\/suspension-explained\/how-to-pressurize-or-depressurize-a-damper-using-a-needle-fill-tool\"\u003eHow to pressurize or depressurize a damper using a needle fill tool\u003c\/a\u003e. It covers depressurizing, pellet retainers, pellet torque, and why you don't actually need nitrogen.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- HOW IT'S MADE --\u003e\n\u003cdetails style=\"background-color: #ede7f6; padding: 1rem; border-left: 6px solid #512da8; margin: 1.5rem 0;\"\u003e\n\u003csummary style=\"font-weight: bold; cursor: pointer;\"\u003eHow it's made\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 1rem;\"\u003e\n\u003cp style=\"margin-top: 0;\"\u003eMaking a fully 3D printed pressure tool was not simple. It took very precise tolerances, a lot of experimentation, and the 15-wall printing technique developed specifically to keep pressure from getting inside the printed part.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem; margin-bottom: 0;\"\u003eThe result comes out of years of working on Shockwave parts and pushing at the limits of what 3D printing can actually hold. Now you can print it yourself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- STL ONLY --\u003e\n\u003cdetails style=\"background-color: #fce4ec; padding: 1rem; border-left: 6px solid #c2185b; margin: 1.5rem 0;\"\u003e\n\u003csummary style=\"font-weight: bold; cursor: pointer;\"\u003eSTL files only (digital download)\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 1rem;\"\u003e\n\u003cp style=\"margin-top: 0;\"\u003eThis is a \u003cstrong\u003edigital product\u003c\/strong\u003e. You are downloading the \u003cstrong\u003eSTL files only\u003c\/strong\u003e to print the tool yourself.\u003c\/p\u003e\n\u003cp style=\"margin-top: 0.75rem; margin-bottom: 0;\"\u003eNo physical product is shipped.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- DISCLAIMER --\u003e\n\u003cdetails style=\"background-color: #fce4ec; padding: 1rem; border-left: 6px solid #c2185b; margin: 1.5rem 0;\"\u003e\n\u003csummary style=\"font-weight: bold; cursor: pointer;\"\u003e⚠️ Disclaimer\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: 1rem;\"\u003e\n\u003cp style=\"font-size: 0.95rem; color: #555; margin-top: 0;\"\u003eThis tool is intended for riders performing \u003cstrong\u003edamper service\u003c\/strong\u003e where the IFP or bladder chamber needs to be recharged.\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; color: #555; margin-top: 0.75rem;\"\u003e\u003cstrong\u003e200 PSI maximum. Print in PETG only, with 15 walls, exactly to the specifications above.\u003c\/strong\u003e Downloading, printing and using these files are at your own risk. Shockwave Parts is not responsible for damage, injury or failures caused by incorrect use, exceeding the rating, poor printer calibration, incorrect print settings or unsuitable materials.\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; color: #555; margin-top: 0.75rem;\"\u003e\u003cstrong\u003eTo release pressure from a shock, do it with the shock pump disconnected\u003c\/strong\u003e, or with a bare needle on its own. Going into an already-pressurized chamber with the pump attached transfers the full chamber pressure into a closed tool instantly. The tool has no Schrader valve core so that pressure can vent instead of building up.\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; color: #555; margin-top: 0.75rem;\"\u003eNeedles are sharp and the chamber is pressurized. Wear eye protection and handle needles carefully. \u003cstrong\u003eDispose of used needles in a sharps container or through a pharmacy or drugstore needle disposal program.\u003c\/strong\u003e Options vary by location, and you should not assume a local bike shop accepts used needles unless they have confirmed that they do.\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; color: #555; margin-top: 0.75rem; margin-bottom: 0;\"\u003eHome-mechanic tool only. Not designed for shop-level volume use. By downloading these files, you confirm that you've read, understood and agreed to the conditions above and to our \u003ca href=\"\/policies\/terms-of-service\"\u003eTerms of Service\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e","brand":"Shockwave Parts","offers":[{"title":"Default Title","offer_id":67809978483052,"sku":null,"price":19.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/8991\/8572\/files\/71439E42-ECCB-4C4B-BFAE-D65150EE053E.jpg?v=1787773389","url":"https:\/\/www.shockwaveparts.com\/products\/stl-print-it-yourself-shock-pump-needle-adapter","provider":"Shockwave Parts","version":"1.0","type":"link"}