Bondtech LGX™ Large Gears eXtruder

BondtechSKU: EXT-LGX

Price:
Sale price$198.81 AUD

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Stock:
Only 2 units left (Australia Stock)

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Description

The Bondtech LGX™ Large Gears eXtruder is Bondtech’s first filament feeder to incorporate their new Dual Drive Technology, featuring larger drive gears for enhanced performance.

7 new features on a Bondtech eXtruder:

  • Larger drive wheels, for increased filament grip;
  • Filament pre-tension lever, for repeated results;
  • Multi-function interface socket, for tool or application quick swap;
  • Drive wheels’ maintenance windows, for easy cleaning;
  • Compact, light & symmetric design, for increased performance and compatibility;
  • Multiple mounting hole patterns, for easy and flexible setup;
  • A small step for a greener Future, craft boxes without bleaching & no coating.

You can read more about the new features by clicking here.

Each LGX™ extruder is supplied with:

  • 1x LGX™ feeder;
  • 1x Custom LDO Nema17 25mm pancake stepper motor;
  • 1x Bowden Interface Plug (with threaded metal push-fit);
  • 1x Direct Drive Interface Plug (for Slice Engineering hotends);
  • 1x 2mm Hex Key (recommended tool);
  • 1x Product Line Information Brochure;
  • 1x Powered By Bondtech sticker.

Now also shipping with additional accessories:

  • 3x M3x30 mm Low Head screws;
  • 4x M3x18 mm Stud with 5mm Hex with M3x4 thread;
  • 30mm PTFE tube to use in the Direct Drive Interface Plug.

4 ADDITIONAL MOUNTING POINTS

  • Use the supplied studs to replace the 4 screws of the stepper motor and use them as additional mounting points.
  • You can find these studs on the accessories bag in your LGX™ package.
  • They have a M3 thread with 4 mm depth.

Technical Specification

LGX extruder

  • e-steps value : 400 using 16 microsteps; 800 using 32 microsteps.
  • Drive wheels : hardened steel;
  • Materials compatibility : abrasive; rigid; semi-flexible; flexible; and soft.
  • Mounting holes : M3
  • Mounting patterns : bottom anterior (2 points); left (2 points), right (2 points), front (4 points), back (4 points)
  • Holes on the sides of the LGX™ : 5 mm depth
  • Holes on the bottom of the LGX™ : 12 mm depth
  • Max tightening torque on the extruder screws is 0.3 Nm

Using a plate between the extruder and the stepper motor

  • Max thickness : 2.6 mm
  • Optimal Thickness : between 0.3 and 2.3 mm;

Optimal Thickness allows full teeth engagement between the motor gear and the main double gear.

For Klipper users

rotation_distance = full_steps_per_rotation * microsteps / steps_per_mm

rotation_distance = 200 * 16 / 400
rotation_distance = 8

The above calculation assumes the following parameters:

  • stepper motor is a 1.8 degrees motor hence 200 as full steps per rotation;
  • microsteps are set to 16;
  • e-steps value recommended for the LGX is 400.
  • PTFE tube lengths:
    • Old Mosquito/Mosquito Magnum : 10 mm
    • New Mosquito/Mosquito Magnum : 11 mm
    • Copperhead screw mount : 30 mm
    • PTFE tube should be cut straight on both ends.
    • Slight chamfer inside is recommended, but not mandatory.
  • retraction speed : 35 mm/s
  • retraction distance (bowden) : ~5 mm (0.4 + tube length[mm] x 0.015)
  • retraction distance (direct drive) for rigid materials : 0.4 mm
  • retraction distance (direct drive) for soft materials : 3 mm
  • Max Environment operating temperature : 70°C
  • Max stepper motor running temperature : 85°C
  • LGX™ DD net weight : 218.6 g
  • LGX™ B net weight : 224 g
  • Package measurements : 80x103x73 mm
  • Package weight : 269 g
  • Download the LGX Technical Drawings here.

Custom Stepper Motor for Bondtech LGX

  • PH-06AWJ connector
  • 2 phases
  • DC 5.5 V
  • Max 1.0A/phase

    To use the LGX, run the stepper motor with currents between ~0.45 and ~0.65A:

    Be vigilant regarding the stepper motor surface temperature.
    Keep it cool enough to touch. Lower Vref otherwise.

  • Class B motor, rated up to 130°C
    • Max recommended environment : 70°C
    • Max temperature at this environment temperature can go up to 130°C on account of the self heating.
  • Download the stepper motor Technical Data Sheet here.

How to change the Current using Vref

It is very hard to read the current being fed to stepper motors. To determine that current we rely on the Vref value. The Vref value is a voltage reference measured in VDC that can be read using a multimeter. It helps us setting the current output of the stepper motor driver.

Different 3D printer mainboards use different stepper motor drivers. Each type of stepper motor drivers has its own formula to calculate the required Vref to get a specific current. Here are some examples:

  • TMC stepper drivers.
    The formula for these drivers is Vref = ( I * 2.5 ) / Imax
    Where I is the target current value measured in A; and Imax is 1.77 on regular mode and 1.2 on SilentStepSticks mode.
  • Pololu A4998.
    The formula for these drivers is Vref = I * 8 * R
    Where I is the target current value measured in A; and R is the Sense Resistor value, that depends on what board are you using. Melzis use 0.1,the Creality Silent boards use 0.15, ...

Estimate shipping

Deliveries within Australia

For shipping prices, please use the above estimated shipping costs. Shipping costs depend on your location, order size, and desired courier service and provider. Orders are dispatched within the same or by next business day for in-stock products from local Brisbane Queensland warehouse depending on courier. Courier Please/Aramex rates are calculated only at checkout. 

We highly suggest using AusPost Express for urgent deliveries or AusPost Standard for remote/rural areas. If you want us to manual quote freight for large complex order, please contact support for quote. As larger flat items and long product are shipped separately compared to general spares/filament to ensure those arrived safely. We suggest you pick a carrier and service you have good previous experience with for best delivery experience. 

Aramex, CourierPlease, and AusPost Tracked Letter are excluded from same-day dispatch and will be dispatched within 1-3 business days. See our full policy and expectation: https://store.dremc.com.au/policies/shipping-policy

Our domestic shipping rates start at: 

  • from $9+ AusPost Standard Post (typically 2-10+ business days*, tracked)
  • from $10 + AusPost Express Post (typically 1 to 4+ business days*, tracked)
  • from $9+  AramexCourier Please) (typically 1-7+ business day* within Metro SE QLD/NSW/VIC/ACT, 3-12+ business days interstate, tracked) (We don't recommended this service for WA/TAS or urgent orders) 

Pricing will depends on order size (weight/cubic size) and delivery location. 

Please note that we do not offer any courier transit time guarantees or compensation if the item arrives later than expected. The provided ETA reflects the courier's estimated transit time after the item has been picked up. Please also account for an additional 1-3 business days for rural or remote areas or potentially delay with delivery network outside their controls such as localised weather events. 

Please use below as shipping time frame expectations for metro area. All order will be ready to be pick up by courier by next business day or same day for some couriers, on rare occasional outside our control miss pickup by courier can occur, if that occurs item may be delay by 1-2 business day and we will make other arrangement to have item dispatch in a reasonable time frame.

https://auspost.com.au/service-updates/domestic-delivery-times

https://www.dhl.com/au-en/home/get-a-quote.html

https://www.aramex.com.au/media/2406/

Delivery Method

QLD

NSW/ACT

SA/VIC

NT/WA/TAS

AusPost Express Parcel

1-2

1-3

1-3

2-6

AusPost Standard Parcel

1-3

1-5

3-7

3-10

DHL Express

1-2

1-4

1-5

2-6

Courier Please / Aramex 1-7 2-7 3-7 10 - 15

 

Deliveries to New Zealand / World

All delivery to New Zealand / World is calculated based on selected service. Depending on situation, if we unable to send to country due to current world events, we may cancel your order. Please refer to below links for service updates/potential delays. 

Please refer to AUSPOST Website for latest news and postage delivery time estimate to your area. https://auspost.com.au/service-updates/international-delivery-times

  • Standard (Signature On Delivery & Extra Cover):  7-14+ Business Days to Metro Area
  • Express (Signature On Delivery & Extra Cover): 5-10+ Business Days to Metro Area
  • DHL: 1-5+ Business Days (Contact us for quote) For select region DHL pricing is available at checkout for general spares.  
  • Fedex/DHL are quoted at checkout, delivery time will depend on service and delivery location. 

Please note that shipping rates/total order are not inclusive of any local taxes, duties or import fees when the shipment passes through customs in the country of delivery (unless specified at checkout). You may require to pay additional tax or custom duty, we cannot adjust order value.

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