● 17 min readShowdown: Uno R4 vs Uno R3 vs Nano
Welcome to Vol. 12 of The Probots Showdown. Three boards. Three price points. Three very different futures for your project.Should you stick with the
Read Article →| Bulk Pricing | ||
|---|---|---|
| QTY | Unit Price(Inlc. GST) | |
| 25+ | ₹48.51 ₹ 41.11 + 7.4 GST | |
| 50+ | ₹48.02 ₹ 40.69 + 7.32 GST | |
| 75+ | ₹46.55 ₹ 39.45 + 7.1 GST | |
| 100+ | ₹46.06 ₹ 39.03 + 7.03 GST | |
High-grade black aluminium end cap for 2020 series profiles. Provides a durable, flush-mount finish for professional black anodized frames.
Standard plastic caps often stand out with a "cheap" sheen that doesn't match the matte finish of black anodized extrusions. The 2020 Series Black Aluminium End Cap is the solution for builders who refuse to compromise on aesthetics. Precision-machined to sit perfectly flush, this metallic cap provides a seamless, "all-metal" stealth look to your 3D printer or CNC machine.
Standard caps are plastic; ProSpec caps are metal. These end caps are Probots™ ProSpec Grade, manufactured from high-quality aluminium alloy with a deep black anodised coating. Every unit is Probots™ Lab Verified to ensure the push-fit prongs provide a tight mechanical grip that resists the high vibrations of active motion systems. Shipped in Probots™ Secure-Transit packaging, your caps will arrive with a flawless, scratch-free black finish.
Material: Premium 6061 Aluminium Alloy.
Compatibility: European Standard 2020 Aluminum Profile (20mm x 20mm).
Finish: Anodized Black (Matte/Satin).
Mounting Type: Friction-fit / Push-fit.
Thickness: 1.5mm - 2mm (Ultra-low profile).
Durability: Heat and UV resistant (Unlike ABS plastic).
Stealth 3D Printer Builds: The perfect match for black V-slot extrusions on Voron or CoreXY machines.
CNC Enclosures: Providing a professional finish that resists cutting fluids and oils.
High-End Robotics: Durable end-protection for mobile robot frames that encounter impacts.
Architectural Models: Clean, sharp finishing for dark-themed modular structures.
Past Projects (Prerequisites): If you've used black plastic caps that turned grey over time or cracked under heat, you're ready for the metal upgrade.
Feature Upgrade: Aluminum caps offer Thermal Uniformity. In heated chambers, metal caps expand and contract at rates similar to your profile, maintaining a tighter fit than plastic variants.
Effort/Requirements: Minimal. Simply press into place by hand or with a rubber mallet.
Technician Note: If your profile cut has "burrs" (sharp metal bits), the fit may be too tight. Lightly sand the internal edges of the profile for a perfect, easy press-fit.
Assembly Step: Align the cap with the center hole of the 2020 profile. Push firmly. The metal prongs will "bite" into the slot walls for a permanent hold.
Included: 1x Black Aluminium End Cap.
Recommended: 2020 Black Aluminium Profile, 2020 Black Corner Brackets.
Is this plastic painted black? No, it is solid aluminium with a black anodized finish.
Will the black color scratch off? Anodizing is very durable, though sharp metal tools can scratch it.
Does it fit 2040 profiles? You would need two of these to cover a 2040 end.
Can I use it on black V-Slot? Yes, it is 100% compatible.
Does it require glue? No, it is a friction-fit design.
Is it heat resistant? Yes, it handles high-temperature enclosures much better than plastic.
What is the weight? Approximately 5 grams.
Will it fall off? The metal-on-metal grip is significantly stronger than plastic-on-metal.
Is the finish shiny? It has a professional satin/matte finish.
Is it sold in a pack? This listing is for a single (1) black aluminium end cap.
Can I remove it? Yes, by gently prying it up with a flat-head screwdriver.
Is it rust-proof? Yes, aluminium does not rust.
Will it fit 3030 profiles? No, only for the 20mm series.
Does it hide the profile's centre hole? Yes, it covers the entire 20x20 face.
Is it conductive? Yes, the aluminium is conductive.
How thick is the cap? It adds less than 2mm of length to the profile.
Can I use it for outdoor builds? Yes, it is UV-proof, unlike plastic.
Do I need a hammer to install it? Usually, a firm thumb press is enough, but a mallet helps.
What is the SKU? PRO5497.
Can I buy in bulk? Yes, please contact us for volume pricing for machine manufacturing.


Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
We delivery electronics components and parts throughout India using standard couriers like Bluedart, Delhivery & India Post.
For order related queries contact -
Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
We offer specialized services for Bulk, Wholesale & B2B Customers like discounted prices, additional shipping options, customised products, etc . Customer with large quantity & regular orders qualify for the specialised discounted rates.
We also offer dedicated sales team to assist you with the order process by providing sales quotations, PI, technical support for choosing products, etc.
Note: Business Orders are processed manually and usually take 1-3 days to process compared to placing the order directly on our website. Please plan your purchases accordingly.
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Probots Electronics is highly regarded for its great selection of components and professional service. Customers frequently praise the awesome care and timely delivery provided by the team to ensure all products arrive safely.
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