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Lulzbot SL Tool Head (Micro) | Small Layer | 0.25 mm

by Lulzbot
Original price $305.00 - Original price $305.00
Original price
$305.00 - $305.00
Current price $305.00
Availability In Stock


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SL Tool Head (Micro) | Small Layer | 0.25 mm

Suited for Intermediate Users

Reach new layer heights for snap-fit parts and tight tolerences, or save time in post processing by using minuscule layer heights as low as 0.05 mm (50 microns) with this high-precision 3D printer head. 

The LulzBot SL Tool Head (Aerostruder v2 Micro) is a 3D printer extruder head that is perfect for engineers, digital artists, and designers seeking a higher level of detail and surface quality. Enjoy the convenience and reliability offered by the LulzBot ecosystem including Cura LulzBot Edition software and Marlin firmware.  Featuring layer heights less than 1/30th the thickness of a penny, think small with this LulzBot Mini 2 3D printer tool head.

High Detail 3D Prints: LulzBot SL Tool Head

The LulzBot SL Tool Head enables a higher level of detail and surface quality for engineers, digital artists, and designers seeking presentation-ready products. The SL Tool Head will be compatible with LulzBot TAZ 6, TAZ 5, and LulzBot Mini 1 3D Printers soon!

Works with: LulzBot Mini 2LulzBot TAZ WorkhorseLulzBot TAZ Pro

Compatibility Alert: Discouraged Filament:
  • Due to the small nozzle diameter of this 3D printer extruder head, use of abrasive or composite (wood-filled, metal-filled, etc.) filament is not recommended due to the potential risk of clogging.

The LulzBot SL Tool Head features a genuine E3D Titan Aero Extruder/Hot End with a 0.25 millimeter nozzle enabling out of the box 3D printing at resolutions as low as 0.05 mm layers, or 50 microns! Advanced users can achieve even finer resolutions. This high-precision 3D printer head is currently compatible with the LulzBot Mini 2 3D Printer. LulzBot TAZ users will also be able to enjoy high-detail printing with an adapter that is in development.

A high-output centrifugal fan and quad-port cooling duct support elaborate prints with extensive bridging, cooling filament in 360-degrees before it has time to sag between points. Lightweight and compact, the SL connects to your LulzBot Mini 2 3D Printer quickly and easily to bring high-resolution 3D prints to your LulzBot 3D Printer. 

This tool head is intended for advanced users, and produces  precision prints with impeccable detail. Some users have asked about different aspects of its capabilities: 





What materials can be used with the LulzBot SL Tool Head? 

 You can use almost any, including flexible filaments like NinjaFlex! We STRONGLY recommend avoiding filled filaments like bronzeFill and woodFill. The particulates in these materials may be too large to pass through the nozzle. 

 Will the Z-offset need to be adjusted due to the different nozzle size? 

 For optimal first layer adhesion, you will want to adjust the Z-offset so that the nozzle tip is closer to the print surface. Follow the instructions here.

 Will I need to use an enclosure when printing with the LulzBot SL Tool Head? 

 Because the nozzle diameter is so small, print times will be longer. We recommend printing with materials engineered or naturally optimized for 3D printing, like nGen, INOVA-1800, or PLA. Alternatively, we recommend using an enclosure when printing with materials like ABS to mitigate warping/lifting. 

Parts Included

One (1) LulzBot SL Tool Head (Fully Assembled, Aerostruder v2 Micro)


Required filament diameter: 2.85 mm diameter (3 mm)

Hot end temperature range: 120°C - 300°C

Nozzle diameter: 0.25 mm

Required power system: 24 Volts

Fans: (1) 5v 40 mm heat sink cooling fan, and (1) 24v centrifugal print cooling fan

Weight: 457.8 g (1.01 lbs)



Order Confirmation:

As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

Order Shipment:

If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at

Cancellations & Refunds/Returns:

Before accepting a return on a product that isn't functioning as it should, Project 3D Printers reserves the right to exhaust any and all means to resolve and/or repair the malfunction through technical support and replacement parts provided by both the manufacturer and Project 3D Printers.  No return will be accepted without reasonable attempts to resolve the issue(s) first.  All returned products must be returned within 10 days of date of purchase.

Project 3D Printers enforces a strict "No Returns Accepted" policy for opened and/or partially used products, including filament, resin, or any consumable of any size and weight that has been used or opened from its factory and vacuum seal.  Only products and consumables that are unused, and in brand new factory condition are eligible for return to the manufacturer of origin within 10 days of the purchase date.

If a product is found to be non-functional or defective, the product must be returned with its full original contents within 10 days of the delivery date for inspection of the non-functionality.  If the product is found to be defective or non-functional a full-refund will be given, not including return shipping at the customer's expense.

All orders cancelled after 48 hours are subject to a $20 administration fee, whether or not your order has shipped.  If you order has shipped, you (the buyer) will also be responsible for actual return shipping charges. Refunds will only be issued to the original credit card that you use when placing your order.  Buyer is responsible for and pays a 20% restocking of the value of the returned item(s).  Buyer pays all shipping fees for the returned item(s). 

Customs Fees, Tariffs, Duty Fees and Import Taxes:

Only customers are responsible for their local import taxes, tariffs, duty fees and import taxes incurred during shipping.  To know about your customs import duties please contact your local customs office with this details  (HS Code :8477 Product description: 3d printer or 3d printer kit). If the tax amount is high, we can provide assistance to reduce it.


We work very hard to ensure that we offer the absolute best prices online.  If you find another online store that offers a lower price than us within six months of your purchase date please let us know and we will refund your original payment for the difference.  We want you to feel confident that you are getting the absolute best price for the product you are ordering.  If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date will refund the difference as well.

To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website within six months from the date of your order and we will process the credit accordingly.

Our 100% Price Guarantee has some limitations:

  • You must purchase the item from our website before requesting your Price Match Guarantee
  • Promotions such as rebates and buy one, get one free offers are not eligible
  • The item must be in stock on the competitors website
  • The competitor must be an online store, they may not have a retail location
  • The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
  • The competitor must be an Authorized Retailer of the product in question
  • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax