Guide 05

Printer gear worth printing first

The upgrades that earn their filament, and those that can wait.

Nearly every new printer owner goes through a phase of printing upgrades for the printer itself. Some are useful, while others just consume filament. A good rule: print upgrades that solve a problem you have already had, not one that you read about.

First: tools you use every print

Start with small helpers that reduce daily friction. A holder for your scraper and nippers keeps them from wandering off, and a spool or sample organizer helps once you own more than a few colors. These are cheap to print and hard to regret. They also make good practice, because they rarely need tight tolerances.

Second: anything for your specific annoyance

If filament tangles, look at the spool path. If your cables snag, consider a strain relief or a guide. If you print in a dusty garage, a cover or enclosure may rise up the list. Make sure the part fits your exact printer model and version, because a mount for one revision may not fit another.

Third: an enclosure, if you need one

An enclosure holds heat and blocks drafts. It matters most for materials that warp as they cool, such as ABS and ASA. If you mostly print PLA, you may not need one, and a warm enclosure can even cause heat creep problems with PLA. In that case, leave a door open or skip it altogether.

The IKEA Lack table approach has long been popular, since stacked tables form a cheap frame. Printed brackets hold panels in place and connect the tables. Our printer gear page lists some enclosure parts and related mounts for this kind of setup. Before you print them, confirm the fit against your own tables and your printer’s size, and check that there is room for the moving bed.

Keep safety in mind too. Enclosures can concentrate fumes, so think about ventilation, especially for ABS and ASA, and do not run a printer in a space you cannot monitor. Avoid flammable materials near hot parts, and do not leave a new setup to run unattended until you trust it.

An enclosure decision list

Answer these before you print a single bracket:

  • What do you print most? ABS and ASA make a strong case for an enclosure. PLA usually does not.
  • Does the room have drafts? A cold garage or a spot under a vent can justify one, even for smaller jobs.
  • Is there somewhere for the fumes to go? Plan a filter or vent before you close the door.
  • Can your electronics take the heat? Some printers keep the power supply or control board where warm air collects. Check your manual.
  • Can you reach the printer? You need access for clearing jams and removing prints.

Fourth: a camera mount

A camera is helpful if you run long prints. It lets you check on a job from another room and spot failures early. It also keeps a record of how things went wrong. A printed mount keeps the camera at a fixed angle, so you get consistent views of the bed. Check that the mount suits your specific camera before you print.

What can wait

  • Fan ducts and printhead changes. These affect cooling and can create new problems. Learn how your stock setup behaves first.
  • Cosmetic parts. They are fine, but they are not urgent.
  • Structural frame mods. Changing the frame on a working printer is a lot of risk for a small gain, so tune your settings before you touch hardware.

Printing printer parts well

Parts near the hotend or heated bed need heat-resistant material. PLA can soften close to these areas, so use PETG, ABS or ASA instead, depending on the temperatures involved. Print structural parts with extra walls and orient them so layers do not carry the main load.

Think about the temperature the part will really see, rather than the temperature on the filament label. A bracket on the frame of an open printer stays near room temperature. The same bracket inside a warm enclosure runs hotter, and a mount close to the heated bed runs hotter again. A part can also fail slowly: it may look fine for weeks, then creep out of shape under a steady load. Inspect printed parts near heat from time to time, and replace any that have started to bend.

Never use a printed part as the only thing holding a heater, a thermistor or mains wiring in place. If your printer’s maker has not designed the part for that job, leave the original in place.

Keep a spare copy of any part your printer depends on. If a printed part fails and your printer can no longer run, you will want a replacement that is already in your drawer.

Buying or printing

Some items are better bought than printed: nozzles, belts, bearings, build plates, electronics and anything else that handles high heat or electrical current. These parts rely on materials and tolerances a desktop printer cannot match, and a failure can damage the machine.

Printing makes sense when the part is simple, lightly loaded and specific to your setup. Holders, guides, covers and clips all fit that description. Buying makes sense when a part is:

  • Safety related, such as a fire suppression fitting, power connector or fuse holder.
  • Precision made, such as a linear rail, gear or lead screw.
  • Heat rated, such as a heater block or silicone sock.
  • Cheap already. A few dollars of tested hardware can beat hours of print time and a roll of test filament.

Our gear page lists general workbench basics, with no products or store links.