prusa mk3 fan upgrade. Printed PETG Parts for Prusa Bear x-Axis and Extruder Upgrade MK3/S/+ MK2. Multiple problems can cause common symptoms. 75mm V6 Printer Prusa MK3 with fast shipping and top-rated customer service. Simply remove your broken fan and replace with this one! Passes setup wizard (as seen in picture). This is a replacement Noctua hotend (heatsink) fan. • The gap between the fan and the heatblock has been increased to give room for a silicone sock. org is community website for all Prusa 3D printer owners or fans. 39 inch; Cable Length: about 750mm/ 29. Now that I have had my Prusa I3 MK3S 3d printer for 4 months I have had an educational time upgrading the unit with aftermarket add-ons promoted by the 3d printing community. Print fan for the Original Prusa i3 MK3/MK3S 3D printer, with RPM measuring. It is compatible with the Original Prusa i3 MK3/S/+ and MINI/+. Due to the hard chromed surface (58HRC), this rods are much more resistant to wear than the original ones. ⬢ Push it down and check its upper surface is aligned with the extruder. It is the Prusa MK3/S Einsy Raspberry Pi 4B/3B Enclosure with support Brace by KalleKnall. With the Prusa upgrade kits you can turn a Prusa 3d printer into a Caribou 3d printer. 5V, With wire length & molex connectors for Mk3s. View and Download Prusa I3 MK3 handbook online. MK3S+のアップグレードで導入された機能の詳細は こちら MK3S と ORIGINAL MK3 の . The Prusa Mini and Mini+ are remarkable machines, especially for their price. 35A Hotend Cooler Blow Radiator Sleeve Bearing for 3D Printer Parts Accessories, 2Pcs. Brushless DC Blower Fan, best DIY replacement extruder hotend parts for Prua i3 MK3. gcode) F3 3D DOWNLOAD ALL FILES 15. After upgrading my Prusa MK3 to the MK3S, I'm finding I can't even complete a print longer than 2-3 hours due to what appears to be . Best Prusa Mini/Mini+ Upgrades & Mods. FYSETC Prusa i3 MK3 Cooling Fan 5015 50x50x15mm 5V DC 0. Prusa MK3 Bondtech Drivegear 1. FREE Shipping on orders over $25 shipped by Amazon. Thanks to the tuned G-code, the mixing speed is adjusted according to the heatbed temperature , so the eggs will never curdle, instead they will become. On my original Prusa MK3 (assembled by Prusa) I had a bed variance of 0. * More Info Each fan is tested individually. i3 MK3 3d printers pdf manual download. With this upgrade, we are introducing the SuperPINDA and a number of small changes. I'm planning to upgrade my MK3 to MK3S with the upgrade kit available in Prusa store. Thanks a lot for watching please check out the links below, help me grow and support me if possible via spreading the word. Prusa Multi-Material Upgrade 2S · E3D Nozzles · Wireless Connectivity · Monitoring Camera · YZ Case · Filament Guide · Heated Bed Cable Support · Motor . I call these essential because they are either quality of life upgrades or they increase print quality. Prusa i3 Mk3s 3D Printer Bear Upgrade. PDF Original Prusa i3 MK3 to MK3S+ Upgrade Printable parts. The Original Prusa i3 MK2S and its official successor, the MK3, are two of the best and most popular desktop 3D printers on the market. Replacement Heatsink Fan for Prusa i3 MK3/S. Thanks to its direct-drive mechanism, the filament loading is now more jam-resistant and reliable. For TicWatch Pro Bluetooth Smart Watch Charger Replacement USB Charge. the fan-shroud part isn ́t included in the pre-sliced files because it needs to be printed from a high-temp resistant material. The plastic parts have better functionality, and you have the possibility to use 10mm linear shafts. 0 by pekcitron Feb 27, 2018 1665 2378 616. Fits: MK3; MK3S; MK3S+; MINI; MINI+. This product is no longer in stock. See the protrusion, it must fit into the groove. I stumbled upon the Delta P duct fan upgrade in a Reddit post. Both cables have a fabric sleeve covering - the Prusa print fan did not - but this didn't pose a problem. Dual Part Cooling Fan Mount / Shroud for Prusa i3 MK3S /+. The Bear Frame Upgrade improves stiffness and reliability of the original Prusa i3 MK2 (S), MK2. 35A Please Note: the fan has two sides,but the side with sticker must be always facing the hotend (not visible when the fan is mounted). 3d Printing Handbook Prusa. This extruder upgrade are for Prusa MK2. This fan is the correct 3-wire setup for the MK3 and terminates with the same Einsy Rambo compatible connector. X and Y axes have slightly improved plastic parts and u-bolts were changed to metal clips which are easier to mount. ⬢ Second, fix the fan in place using one M3x20 screw. Print instructions Prusa Research Original Prusa i3 MK3 to MK3S+ Upgrade Printable parts. Prusa MK3S+ Upgrades Dual Part Cooling Fan Mount / Shroud for Prusa i3 MK3S /+ by RosyRL Jun 17, 2019 212 408 115 Jack plug adapter anchor block - single, double and triple. The Other folder includes some optional upgrades to the latest part version if you have the older ones installed on your printer. We provide a large range in stock located NSW Australia. Disclaimer: Mods aren’t always about. Delta PSUs are usually a bit more expensive. Plus it looks unique with our coloured frames!. I created this fan duct to see if a 360 degree part cooling duct could work on the Prusa. Prusa i3 MK2 Upgrade - Titan Clone, 12mm probe, Prusa Mk3 fan duct. This kit contains the necessary parts to convert the newly designed extruder with 3:1 gearing ratio for better precision and resolution together with optimised geometry for the heatsink cooling and many other cool features. But my original existing print fan has always made a terrible noise for the first 5-10 minutes into the print. One of the negative points of the Prusa i3 MK3 and MK3S is the rigidity of the frame. RE: PSU - What is the replacement PSU for the MK3? It seems that fanless PSUs small enough to fit on a Prusa top out around the 250w range. Our upgrade kits are compatible with Prusa MK2, MK2. I found plenty before, but they were all the 2 wire variant. はじめに; 目次; 前提条件; 部品調達先; アップグレード紹介. Performance is pretty well identical to the original. Even with the fan off, any x-axis movement makes the rotating part rattle, creating unpleasant noise. Brushless DC Blower Fan, best DIY replacement extruder hotend parts for Prusa i3 MK3. Prusa i3 MK3 / MK3S / Prusa Bear / Zaribo Fan. 2Pcs 3D Printer Silent Cooling Fan Blower Radial Fan for Prusa I3. BearMera Hemera Prusa i3 MK3/3S Upgrade Guide Daniel Rock August 12, 2021 10:31; This is our recommended guide for anyone looking to upgrade their Prusa i3 MK3 or. The Y-axis upgrade kit for the Prusa MK3 3D printer contains of the following parts: - 2 Linear Guideways (original Hiwin MG) stainless steel. I’ve tested a ton of them and continue to print new awesome and some very not so awesome upgrades. Prusa Delta P Duct Fan Upgrade. amf) F3 3D DOWNLOAD ALL FILES 4. I ended up getting pretty ok results. Buy 3D Printer Upgrades Parts V6 Extruder Hotend Kit 3 Cooling Fans 24V All Metal V6 J-Head Bowden Extruder Hot End with Assembly Fixed Block for All 1. Obviously, one of the neatest aspects of the unit is that it can print it's own upgrades! Modified Duct Fan Prusa Delta P Duct Fan Upgrade. Best Upgrades for Prusa Mk3 3D Printer Windows Central 2022. Well, now there’s an upgrade solution available – for the price of €499. Welcome to the new and improved list of awesome mods to improve functionality and sometimes even print quality of your Original Prusa MK3/s and some are even awesome for your MK2. RepRap Warehouse Prusa i3 MK3/MK3S Replacement Print Fan 5V. Buy the best and latest prusa ml2 on banggood. *Update 13/02: Including all MK3 kits and upgrades and MK2. 67+ cooling fan prusa mk3 STL Files for 3D Printers. Also known as the part cooling or print cooling fan. In comparison: A new Mk3 will set you back €769 (kit version) or €999 (assembled). The standard fanless black Prusa PSU is made by Delta, an excellent PSU manufacturer. Installing a fan in a way that the rotating part basically slides/hangs off its bearing is just stupid. ) when you print plastic parts by yourself and you can buy them right now on our e-shop: MK3 to MK3S upgrade kit. documenting upgrades on my Prusa Mk3 printer View on GitHub Upgrading the Prusa mk3 and its influence on wall quality. 90 g d Prusa MK3/S/S+ updated 11. Any 50x15mm fan should do it really. This kit contains the necessary parts to convert to our newly designed extruder with 3:1 gearing ratio for better precision and resolution together with optimized geometry for the heatsink cooling and many other cool features. When running the calibration wizard, the bed calibration point was not found. Images below! I upgraded my Prusa mk3 R2 build with different axis and extruder. Prusa i3 Mk3 Print Fan replacement. The regular price of the MK3S and MK2. Tighten carefully , or you will damage the fan's casing. 5-MK3 Bondtech Extruder Upgrade kits are now available. 5/s so make sure to check out the compatibility before printing parts and dismantling your printer. Long story short, I want to replace the Noctua hot end fan with something that can actually move some air. Source / replacement for MK3 print fan? Has anyone found a U. 2017年9月には、Prusa i3 MK3 がリリースされた。キャッチコピーは"bloody smart (超賢い)"。アップグレードされた機能は数多く、 . This is the ideal replacement for the original rods. A sleek Prusa i3 MK3S Raspberry Pi 4 Upgrade. I have develop this kit for upgrade the Prusa I3 MK3. The former is a tried-and-tested product with a well-established reputation for being an absolute workhorse while the latter offers more convenient features, including a removable magnetic build platform. In the renders, red is stock, cyan is the new design. Overview of the Prusa i3 Mk3 extruder and hotend It is helpful to have a good overview of how the Prusa i3 Mk3 hotend functions before trying to troubleshoot something as complicated as a 3D printer. I've made a new version with even more clearance, and even more. you meant the part cooling fan. com offer the quality prusa ml2 on sale with worldwide free shipping. PRUSA I3 MK3 MK3s+ R5/R6 Replacement parts color change Orange - £18. Dimensions: About 40 x 40 x 10 mm. Best regardsDouglas Whyte Customer Support PRUSA Research +420 222 263 I just did the MK3 to MK3S upgrade and now I've a noisy part fan!. You get a much more stable and higher frame. filament sensor problem autoload problem mk3s upgrade mk3s firmware bug. Misumi - Prusa MK3/S MK2/S Upgrade Kit Smooth Rods + Linear Bearing PSFJ8 / LMU8. Noctua NF-A4x10-5V Quiet Cooling 40x40x10mm 5V Fan for Prusa MK3 Extruder Bondtech Prusa I3 MK3S Extruder Upgrade Kit EXT-KIT-68 from $225. Prusa Research is known for its open-source Original Prusa i3 MK3 3D printer, parts of which are. 0 (MMU2) is available to pre-order at Prusa’s e-shop for $299 (tax excluded). There's a 10mm thick and a 20mm variant. The MMU2S upgrade package contains the MMU2S unit and the filament buffer. (You could find mounting instruction in the attached pictures) This kit include : - Magnetic head (direct drive and laser) - Z axis cable management - Leds holder - rotation indicator The parts must be printed in PETG for follow the original design. To replace this part, please consult the Prusa Assembly Manuals. Don’t just take our word for it!. ⬢ Insert the Adapter-printer into the hole in the extruder-body. Includes: Hotend fan (1 pcs) Specifications: Dimensions: 40×40×10 mm; Speed: 4500 RPM; Airflow: 8,2 mm m³/h (4. by Mikesrailway Feb 23, 2021 2590 3641 38 Prusa i3 Bear Upgrade v2. Includes: Blower fan (1 pcs) Fits: Prusa MK3. Δες χαρακτηριστικά & πραγματικές κριτικές χρηστών!. To upgrade your Prusa MK3 to a Revo Six, here’s what you need to do: Remove your V6 Adjust the length of the PTFE tube Swap in the Revo Six Replace the heater and thermistor wires The upgrade is straightforward, and we’ve already prepared a step-by-step guide to walk you through the process. On the MK3 to bypass the fan blip I only use M106 and adjust the S values, unfortunately firmware changes a couple years ago made the use of M107 do fan blips if you do any value on M106 after it. Customize your 3D printer with hundreds of enhancements! Download spool holders, camera mounts, LCD covers, fan shrouds and even the Lack enclosure! 9 077 prints. Update for Prusa i3 MK3 and MK3S printer. Step 3 Nozzle-fan and print fan removal [進行中の翻訳]. Click to find the best Results for prusa i3 mk9 Models for your 3D Printer. This is a cosmetic change only a simpler form a black abs or petg. Prusa Mk3 Print Fan (5V) Prusa i3 3D Printers. Prusa MK3/S/S+ Summary Uses Prusa Hotend Fan to prevent heat creep caused by the small E3D Revo Fan 3D Printers > 3D Printers - Upgrades Tags: hotend micro mini prusa prusaminiextruder revo minihotend coolingfan e3d revomicro upgrade This is based on Lichtjaeger's awesome design. Meanwell is well-regarded in the community and is relatively cheap. I printed different models before and after the upgrade to see how it affects the print quality. I can't find any replacement fan in the Prusa Store. Shop the Largest Selection, Click to See! Search eBay faster with PicClick. All information you need to know about Original Prusa 3D printers. To upgrade your Prusa MK3 to a Revo Six, here's what you need to do: Remove your V6 Adjust the length of the PTFE tube Swap in the Revo Six Replace the heater and thermistor wires The upgrade is straightforward, and we've already prepared a step-by-step guide to walk you through the process. It should hold inside the Extruder-body by itself. This product includes: Print fan (1 pcs) To replace the part/s, please consult our Assembly Manuals. RepRap Warehouse Fan 5015 Blower Style DC 5V. Original Prusa i3 MK2S Kit (3Dプリンタ) を買ってた | tech - 氾濫原 と書いたすぐ1ヶ月ほどあとに MK3 というメジャーアップグレードバージョンが . Please Note: this is ONLY a direct fit replacement for the MK3, MK3S and MK3S+. If you bought your MK2S during the last 30 days before MK3 release (September 23, 2017), you will get a 100 USD discount. Attach the rotary spatula attachment to the extruder , crack the egg right on the heatbed and prepare your plate. (M3 x 40mm) Make sure you support the motor as you remove the screws at the back, to avoid straining the wires and/or dropping it. ⬢ First, slide the fan in the fan-shroud and make sure it is aligned properly. Prusa i3 MK3/3S PETG Upgrade Printing Part Kit with Scraper for Prusa i3 3D Printer Accessories 5V DC Cooling Fan + Turbo Cooling Fan Set For Prusa i3 MK3 MK3S. The original part-cooling fan 50x15 radial fan is used in this setup and is . Silicone Bed Level Mod Prusa MK3. - 3 Linear Guideways blocks (original Hiwin MG) - mounting kit. Includes: Print cooling fan (1 pcs). by Hironori Kondo, Jackson O'Connell. MMU2 MK3S Upgrade Filament Change Mid-Prin Light Out Operation. Bondtech Upgrade Kit For Prusa i3 MK2. Turn your Prusa around, so that you can access the back of the extruder. Assembly manuals, print quality troubleshooting, calibration, PrusaSlicer and much more. I am still on the original fan but it requires maintenance, peel the sticker off the back covering the fan bearing shaft and every few months with the fan held horizontally (Requires removal), apply 1 drop of light machine oil to the end of the shaft, then proding the fan so the shaft lifts and drops, get the oil to go beneath the. Original SUNON fan for hotend cooling of Prusa Mk3 and Mk3/Mk3s Bear Upgrade 3d Printers. Some materials are more sensitive to temperature changes than others and work best when the print area is covered. Trianglelab 3ワイヤdcファンセットprusa i3 MK3 MK3S MK2/2. Stock also had a new nozzle fan thingy from RH_Dreambox. Upgrade kit for the Original Prusa i3 MK3/S to Original Prusa i3 MK3S+. Make them even better with these Prusa Mini upgrades and mods! Contents. stock and skele had nozzle X and a nozzle sock. 5 or Prusa MK3 where you already have the Bondtech Drivegears. RE: Prusa radial fan (filament cooler) - better replacement. This 5015 fan is a direct replacement for the stock Prusa i3 MK3 parts cooling fan. I don't particularly care about noise. This upgrade will let you print with up to 5 different filaments at once. So many people want to know what the best upgrades are for their Prusa MK3 and there is a tremendous amount available to all the users out there. Cable length: 750mm (approx) Fits: Prusa MK2. ⬢This guide will take you through the replacement of the print fan on the Original Prusa i3 MK3S and MK3S+. Silicone Bed Level Mod Prusa MK3. | Download free 3D printable STL models. Since the number of hardware combinations keeps growing, we have decided to discontinue the “2. An enclosure is one of the most important upgrades for the MK2S/MK3 because it improves the print quality of certain materials. Prusa MK3 PSU Overkill Cooling Fan Shroud. Some parts might slightly differ. Based on Prusa MK3 R3 - updated Extruder with 40x40x20mm fan open Idler and improved airflow. Zaribo 3D Printer Upgrade Options: Zaribo 220 MK3 > Zaribo 420 MK3 Zaribo 320 MK3 > Zaribo 420 MK3. Specs: Hydraulic Sleeve Bearing. Looking for a replacement hotend fan on the Prusa MK3. I've made a new version with even more clearance, and even more robust walls. This fan is not compatible with MK2/S, use the 12V fan instead. You can find the full Prusa MK3 (S/+) upgrade guide here. 5/S with Free ABS Fan Duct 3DPrintIt314159 5 out of 5 stars (31). silicone tubing (high temp) replacement for nylock mod. Prusa Multi-Material Upgrade 2S. DON'T use any screw to secure the Adapter-printer-mmu2. It is compatible with the Original Prusa i3 MK3/S and MINI. It allows faster prints, increases precision, makes maintenance easier and opens the door to more customisations. The afterwards integrated 7×7 mesh bed leveling did work but for my work I always found that the bed needs to be as flat as possible in the. Money Back Guarantee ensures YOU receive the item you ordered or get your money back. 2021 F3 3D Update 4: After 40 hours of printing I took the Extruder apart. A Simple fan arm support for the Prusa I3 mk3 B6-B7 upgrade. どう改善されるかは?(たぶんこれもMK3からのアップグレード用だと思います。) ・Fan shroud printed of ASA →ASAで印刷されたプリントファンパーツ . I get it, on Prusa's print farm, nobody cares because the overall noise there is overwhelming. Obviously, one of the neatest aspects of the unit is that it can print it’s own upgrades! Modified Duct Fan Prusa Delta P Duct Fan Upgrade. Front Hotend Fan for Prusa i3 MK3 MK3S MK2/2,5 3D Printer: Case Fans - FREE DELIVERY possible on eligible purchases,Buy 2-Pack 50000Hours Lifetime 3wires DC Fans DC 5V Cool Blower Fan Kit 4010 5015 Extruder Hotend Cooler Radiator Left Hotend Fan,Discover your favorite brand,High-End Fashion For Top Brand,Find new online shopping,Best Shopping Deals Online,To provide you with the best trendy. If you haven’t isolated the problem, you can waste a lot of time trying to fix the wrong thing. Octoprint + MMU2 Last Post RSS the-squall (@the-squall. Upgrading the Prusa mk3 and its influence on wall quality. Βρες τιμές για το προϊόν Prusa Research MK3 Nozzle Cooling Fan 5V by Noctua από 2 καταστήματα. 5 and MK3 upgrade kits are going out with Smooth PEI and same deal with PrusaPrinters. Prusa Prusa Heatbed thermistor kit (E3D) $19. This kit has solved those problems using 3030 aluminum profiles. Check out our Prusa MK3, MK3S & MK3S+ spare parts on SALE or pickup in-store today. Bondtech have done it again! Prusa I3 MK2. On the MK2 seems like it would do blips at lower fan speeds - so the only way to deactivate that (I'd think) would be to change the parameters in the. Download: free Website: mk14 mk14 ebr ctc prusa i3b clone upgrade geeetech prusa i3x upgrade prusa i3mk3 einsy with fan. The Prusa i3 MK2 was already an excellent printer, but the new features added in the MK3 combined with the available multiple material upgrade really puts this machine on the cutting edge of. Includes: Hotend fan (1 pcs) Specifications: Dimensions: 40×40×10 mm; Speed: 4500 RPM. This is a set of two fans, a hotend fan and a print fan, for the Prusa i3 MK3[S]. Jack plug adapter anchor block - single, double and triple. The lower tolerance of these rods results in a better print quality and a quiter running of your printer. The link below only cost me $15 after shipping and it is the 3 wire variant. Universal Snail Fan Duct for 3D Printer. MK3S pauses mid print to unload filament. I've tested a ton of them and continue to print new awesome and some very not so awesome upgrades. Obviously, one of the neatest aspects of the unit is that it can print it's own upgrades! Modified Duct Fan. This upgrade kit is compatible only with the original All Metal V6 hotend that is supplied with each Prusa. The Original Prusa i3 Mk3 is an excellent Fused Filament Fabrication (FFF) 3D Printer and one of the best ready to run consumer-grade. SuperPINDA (1 pcs) Bearing Clips for Y-axis bearings (3 pcs) Sensor de filamento IR (1 pcs) Sensor de filamento IR - Einsy cable (1 pcs). Original Prusa i3 MK3/S to MK3S+ upgrade kit. A new firmware for the Original Prusa i3 MK3 and MK 2. The fans are drop-in replacements for the Prusa-supplied fans and come with preattached cables and connectors long enough to reach the controller. Printed Parts for Prusa Extruder Upgrade/Replacement PETG and ABS MK3/S/+ . Original Prusa i3 MK3 after 3 months and MMU 2. FYSETC Silent Cooling Fan 4010 5V, Prusa/i3/MK3 with Hydraulic. *Also fits Prusa Bear and Zaribo 220 / 320 / 420 printers. A lightweight high-resolution extruder upgrade for the popular Prusa I3 MK3S 3D printers, featuring an optimized design achieved with the help of the community. As the title says, has anyone found a replacement for the Prusa i3 Mk3 print fan in the US? Mine went kaput after I upgraded to the Mk3S and I really hate to spend so much in shipping for a cheap fan from Prusa. Laser Engraving on Your Prusa MK3. source or replacement for the MK3 print fan? I know that Prusa offers them (I'm assuming they'll swap my dead one) but for a $6 item I hate to be down for a week during shipping. com: FYSETC Prusa i3 MK3 Cool Blower Fan Kit 4010. 59 inch; Cable Length: about 750mm/ 29. Replacement Print fan – Others (Archive) – Prusa3D Forum. The same day support agreed to send me a replacement bed thermistor, I separately ordered two spools of filament and then a bunch of spare parts to go along for the ride, including two more spare thermistors. Click to find the best Results for prusa i3 mk24 Models for your 3D Printer. The case not only fits the RPI4 and the EINSY board at the same time, but also increases the sturdiness of the frame by adding a frame brace as well as adding ventilation to the case through an optional case fan. I am truly dumbfounded by the fact Simplify3D does not support the Prusa Mk3 MMU2 considering how many users of Simplify3D own the Prusa MK3 with an MMU 2. PRUSA I3 MK3 HANDBOOK Pdf Download | ManualsLib If you have any questions about 3D printing in general, about your order, shipping, calibration, or troubleshooting, don't hesitate to contact us. Upgrade Kits for Caribou and Prusa 3d Printers. Prusa MUTANT Upgrade Kit (for MK2. Características: MK3S para Original Prusa i3 MK3/S+. 83 CFM) Acoustical noise: 17,9 dB(A) Max input power: 0,25 W; Max input. If you have the MK3 and want to add the MMU2S upgrade, you also need to purchase the MK3S+ upgrade kit (separate purchase). The stock shroud that comes with the base kit was flimsy and chunks were occasionally meting off and falling in my prints. 5S” upgrade kits – these will be available only until the end of December 2020, so if you still want to upgrade your old. Prusa took advantage of my box going that way and put the warranty replacement in the same package. 5S; Prusa MK3; Prusa MK3S; Prusa MK3S+. The Original Prusa i3 MK3 with Multi Material Upgrade 2. Every Day new 3D Models from all over the World. FOR SALE! What you get: All 10 parts shown (Orange). This fan comes with wiring for the Prusa i3 MK3 and Rambo motherboard, but generally speaking is a good general 5V fan solution. The Original Prusa i3 MK3 Master Chef will easily make scrambled eggs for you. These upgrades will have the printed parts printed by us. This product is the replacement Print fan. Prusa i3 MK3 360 Degree Fan Duct Concept. After upgrading my Prusa MK3 to the MK3S, I'm finding I can't even complete a print longer than 2-3 hours due to what appears to be heatcreep causing a failure. Make sure to follow the manual for your printer model. Remove the two screws closest to the top of the extruder and carefully take off the cover.