axmod3dprint/fb2020

The FB2020 Core XY 3D Printer repository

Reliability, Speed, Accuracy, Open Source

This sums up the FB2020 CoreXY 3D Printer. We use these printers ourselves and wouldn’t sell the kits if we didn’t think they were up to snuff. Our FB2020s have run thousands of hours with very little down time. We print all the FB2020 printed parts on our FB2020s.

Reliability

The FB2020’s heart is the tried and trusted RAMPS 1.4 & Arduino Mega running the Marlin Firmware. It has tried and trusted A4988 Stepper Drivers moving the motors . With an AxMod 3D Print Drakon Geared extruder powering the filament through the bowden tube into a Genuine E3D v6 Hot end. This makes for a winning combination. The heated bed is a glass sheet heated by the tried and trusted Mk2B PCB heater. All of this adds up to a reliable printer.

Speed

With the 32 bit upgrade, replacing the Arduino Mega for a Re-Arm 32 Bit controller running Smoothieware, the FB2020 can handle 150mm/s speeds without skipping a beat. The standard Arduino Mega, being 8 bit, can handle speeds up to 80mm/s

Low Maintenance Accuracy

Running the E3D v6 and the Drakon Geared Extruder, it’s smooth printing. The FB2020 is capable of layer heights of 60 Microns up to 500 Microns and can print pretty much any filament you can throw at it. Adding a sheet of Printbite with the Basic bed upgrade allows for a low maintenance bed with great adhesion. The Full bed upgrade uses the same Printbite sheet on top of a laser cut 6061 5mm thick Aluminium bed heated by a SSR switched Mains heater. This speeds heat up times and allows bed temperatures of up to 130°c. Upgrading the Drakon Extruder to a SLS version gives even more piece of mind for smooth running.

The Bill of Materials and further infomation can be found in the Wiki.

Firmware can be found at https://github.com/AxMod3DPrint/FB2020-Firmware

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© AxMod 3D Print 2017.
This documentation describes Open Hardware and is licensed under the CERN OHL v. 1.2.
You may redistribute and modify this documentation under the terms of the CERN OHL v.1.2. (http://ohwr.org/cernohl). This documentation is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN OHL v.1.2 for applicable conditions

fb2020's Issues

scad files errors

Hi, first of all, thanks for your effort e for making the whole thing parametrized.
I´m trying to change the left_bed_holder_clamp and right to use lm10uu bearings and 10mm rods.
I´m trying to accomplish using the left_bed_holder_clamp.scad file, I´ve downloaded culain's files referenced on that scad file, replaced the original import file path with my local file path (/mnt/genesis/Documents/STLs/FuseBox1.3_2020/files/Left_Bed_Holder_NEW.stl), but I´m not getting very far with this. Can you give some pointers as how to?
Thanks

New Y-Rod Holder teds to flex

The new designed Rod holders are a very good solution, however after 3 days the unfixed side tends to bend downwards. It would be a nice variant if you could redesign the rod holders to have a mounting hole on both sides. To mount them it would be required to remove the inner corner brackets, which can be replaced by two L-Brackets, one on top, the other on the front / back. so the frame will stay rigid and we free up space for the second mounting point (outer side).
Thank you very much

Auto level probe

Add support for induction sensing probe for auto bed leveling

Convert Bed Carriers/Rod Holders to use 10 or 12mm Rods

Bed Carriers need to be converted to use 10 or 12mm Smooth Rods to kill Z Wobble. This needs a re-design from the ground up to kill the cobbled together SCAD file.

Remove top hole in Left carrier

Top hole in the Left Carrier needs removing to allow the use of an endstop without a lever. This will give another 3-4mm X Axis movement

Question: Is it "stable"?

Is the master branch currently in such state that I could use the parts to print and assemble FB2020+ or is it still work in progress?

Electronics upgrade.

Move from using RAMPS based electronics with Marlin to a 24v system running Smoothieware,

Board Candidates:
Azteeg Mini
AZSMZ
MKS SBASE

The last two being low cost Chinese boards, which aren't too well supported, I'm leaning towards the middle ground of the AZSMZ.

Convert X & Y to 10mm rods

Possible change. I've noticed there's a little too much spring on quick direction change upgrading the X & Y to use 10 mm rods should resolve this.

Will require a redesign of the Carriages, but this is on the cards anyway.