It is very necessary that we perform regular maintenance for our 3d printers. This has two benefits.
We can start from the following aspects.
The Z-axis lead screws should be checked and greased every 1 to 3 months, depending on the usage of the printer, type of grease and environment. If the screw is visibly dirty or you notice signs of resistance on movement you should perform maintenance ahead of schedule.
Cleaning: The first step before greasing the Z-axis lead screws would be to clean them of any dust or plastic particles. The screw should be cleaned throughly, removing debris and old grease from the screw thread. You can do this using a cloth or toothbrush, isopropyl alcohol can also help remove old grease.
Lubrication: The next step is to use lubricating grease and apply a thin coat over the lead screws. With the bed homed, apply a thin coat of lubricating grease then move the bed to a lower position. Apply another thin coat of grease on the Z-axis lead screws and home the printer again. You can repeat the movement process a few times, to ensure the grease is evenly spread out over the Z-axis lead screws. When complete, simply clean out any excess grease that builds up close to the leadscrew nuts.
Recommended lubricant link:
Lucas Oil Products LUC10533 White Lithium Grease
Super Lube-21030 Synthetic Multi-Purpose Grease
Lucas Oil 10005 Red 'N' Tacky Grease
Most greases can be used with on the lead screw. An NLGI 2 grease is recommended.
The steel, smooth linear shafts should maintained every 2 to 4 weeks, or when the shafts are visibly dirty or dry. Maintenance may be necessary more often if you print a lot at high chamber temperatures or use a lower quality oil.
Regular cleaning: Keep the steel linear shaft clean and free from dust, dirt, and debris. Wipe it down using a soft cloth or brush to remove any accumulated particles. This prevents abrasion and maintains smooth operation. It is recommended to soak the cloth in isopropyl alcohol to help clean the shaft.
Lubrication: Apply a suitable lubricant to the steel linear shaft to reduce friction and wear. Choose a lubricant specifically designed for linear motion applications (a machine oil). You can apply it with a brush or a soaked cloth. Then move the printhead around, helping spread the oil around the shaft and into the bearing.
Protection against contaminants: Take precautions to protect the steel linear shaft from contaminants such as moisture, dust, and chemicals. If the printer operates in a dusty or dirty environment, try to keep the enclosure closed when possible and clean the printer more often.
Recommended lubricant link:
Super Lube 52008 Synthetic Lightweight Oil
TSI Supercool Vacuum Pump Oil, Synthetic
Similar products can be used. Look for oils with a viscosity of 68 cSt, without additives. If you can't get an oil like that, sewing machine oil or 3-in-1 oil can be used instead, though they will need to be reapplied more often.
There are four fans that should be regularly checked for any dust and debris build-up.
They should be regularly checked for debris or dust buildup to ensure a smooth operation and long life. With the printer off, we recommend using a can of compressed air. While keeping the fan blades in place, use the compressed air to blow air over the blades and clean any dust or debris.
During a long period of use, our hotend&nozzle may have various failures, at this time we need to replace them, we can learn how to replace them from the video linked below.
High temperature printing will accelerate the loss of thermal grease.
How to apply thermal grease:
Operation steps
When you replace the nozzle of printer，it's necessary to keep recommended temperature of the nozzle for corresponding filament.Also you must put on thermal gloves for preventing burn.