Comgrow T500, the only fast Klipper firmware 3D printer with a 500mm cube print volume, linear rails

Summary

The Aurora Tech Channel reviews the Congo t500, a large-scale 3D printer by Comgrow, a known reseller of Creality printers. With a 500mm³ print volume and modular linear rails for motion, the t500 offers a rigid frame and fast printing speeds up to 180mm/s. Despite minor prototype quality issues, the printer demonstrates good print quality and potential, retailing around $900 with a 7-inch Clipper pad and 600W PSU. The review also highlights the printer's motion system, print speed, and quality, while noting areas for improvement.

Takeaways

• 😀 The Congo t500 is a large 3D printer by Comgrow, a reseller known for selling Creality printers on Amazon.
• 🏗️ The t500 has a massive print volume of 500 millimeters cube, making it larger than any other reviewed printer.
• 🛠️ The printer features a modular linear rail motion system, dual Y and dual Z axes, and a solid aluminum gantry for enhanced rigidity.
• 🔌 The print surface is a spring steel sticker sheet, heated by a 600-watt PSU, and the machine runs on Clipper with a 7-inch touchscreen.
• 💻 The 32-bit motherboard connects stepper motors and limit switches, with processing handled by the 7-inch pad, likely a Megabase 7 inch pad with a quad-core Cortex A53 processor.
• 🔧 The extruder is a 6.5:1 ratio dual gear direct extruder, with a non-volcano style nozzle and three extra hardened steel nozzles.
• 📦 The machine comes in a large box, weighing nearly 90 pounds, with all parts well protected and a simple assembly process.
• 📈 The print speed is fairly fast, with the ability to print at 180 millimeters per second and good print quality for a large bed printer.
• 🌡️ The print bed heats up quickly with a 600-watt power supply, and the temperature difference across the bed is acceptable for its size.
• 🛑 Some issues were noted with the print surface sticking too well to PLA, requiring glue to improve adhesion, and the cooling system could be improved for better overhangs with larger nozzles.

Q & A

What is the Congo T500?

The Congo T500 is a large 3D printer that is a final prototype from ComGrow. It features a 500 millimeter cube print volume, making it larger than any other printer previously reviewed by the channel.

Who is ComGrow and what is their relationship with Creality?

ComGrow is one of Creality's resellers, known for selling thousands of Creality printers on Amazon. They have previously been reviewed for their laser engraver, the Z1, and the mini desktop CNC, with the T500 being their first 3D printer.

What are the key features of the Congo T500's motion system?

The motion system of the Congo T500 uses modular linear rails on the X, dual Y, and dual Z axes. It also includes two solid aluminum brackets at the back to enhance the rigidity of the tall gantry.

What is the print surface of the Congo T500?

The print surface of the Congo T500 is a spring steel sticker sheet, which is heated by a 600-watt PSU.

What software and hardware components does the Congo T500 use?

The Congo T500 runs Clipper and uses a 7-inch touch pad similar to a Sonic PAD as its touchscreen. The Linux OS and Clipper are installed on the pad, and a 32-bit motherboard is used to connect the stepper motors, limit switches, and the print head.

What are the specifications of the extruder on the Congo T500?

The extruder on the Congo T500 has a 6.5:1 ratio dual gear direct drive system. It comes with three extra hardened steel nozzles sized at 0.4, 0.6, and 0.8 millimeters.

What is the price range of the Congo T500?

The Congo T500 is priced at around $900.

What is Voxel PLA and how is it related to this review?

Voxel PLA is a brand created by a print farm in Southern California. It is a modified version of PLA that provides higher impact strength and supports high-speed printing. The brand sponsored today's video and is mentioned for its quality and reliability.

What are the assembly steps for the Congo T500?

The assembly involves placing the gantry on the base, reinforcing the gantry with brackets, mounting the spool holder on top, and attaching the screen bracket on the right side. The machine also requires connecting some cables and adjusting the local voltage with the power supply.

What are some of the pros and cons of the Congo T500 as mentioned in the review?

Pros include an excellent motion system, a super rigid frame, good print speed and quality, and a large heated print bed. Cons include issues with the print surface sticking too well to PLA, insufficient cooling when using a 0.8 millimeter nozzle, and some quality control issues with the prototype.

Outlines

00:00

🤖 Introduction to the Congo T500 3D Printer

The video begins with an introduction to the Congo T500 3D printer, a final prototype from Comgrow, a reseller of Creality printers. The T500 is Comgrow's first 3D printer and features a 500mm print volume, modular linear rails, and a 600-watt PSU. The machine runs on Clipper with a 7-inch touchpad and comes with various hardware components. Priced at around $900, it's positioned as a high-performance printer with a large build volume.

05:00

⚙️ Setting Up the Congo T500

The setup process of the T500 involves assembling the base, gantry, and print head, followed by attaching the 7-inch Clipper pad and other accessories. The video highlights the ease of assembly with top-mounted screws and the functionality of the Clipper interface. After setup, the auto-home and leveling processes are demonstrated, ensuring all components are functioning correctly. The printer is then tested with a simple Benchy print, which completes in 43 minutes, displaying decent quality with minimal stringing.

10:16

🖨️ Performance Tests and Print Quality

Various performance tests are conducted on the T500, including printing a number slider and a honeycomb box to assess clearance and retraction capabilities. The printer shows good results, though some stringing is noted. A comparison with other new-generation machines reveals that the T500 offers competitive print quality, especially at higher speeds. Further tests include printing a large lampshade with a 0.8mm nozzle, a PETG kitchen towel hanger, a TPU wallet, and a nylon carbon fiber part, all demonstrating the printer's versatility and capability.

15:18

👍 Pros and Cons of the Congo T500

The pros of the T500 include its excellent motion system, rigid frame, dual Z-axis support, fast print speeds, decent print quality, use of open-source Clipper firmware, and effective bed heating. However, cons include issues with the print surface adhering too well, limited maximum bed temperature, cooling inadequacies with larger nozzles, inconvenient filament sensor placement, and quality control issues in the prototype. Despite these issues, the printer is noted for its potential and good overall value.

20:19

📝 Final Thoughts and Recommendations

The final section discusses the T500's potential for future recommendations, noting that Comgrow has addressed reported quality issues for large-scale production. While the prototype has some flaws, the T500's hardware and performance are promising. The video concludes with a cautious recommendation and a link to the product, inviting viewers to consider the T500 while acknowledging that further testing of production models is needed before a full endorsement.

Keywords

💡Congo t500

The Congo t500 is a large-format 3D printer that is the focus of the video review. It is a final prototype from Comgrow, a reseller of Creality printers. The printer stands out for its size and capabilities, with a 500mm cube print volume, which is larger than any other reviewed by the channel. The machine's specifications and performance are central to the video's theme of evaluating 3D printing technology.

💡Comgrow

Comgrow is a company that has been selling Creality printers on Amazon for many years and is the creator of the Congo t500. They are highlighted in the video as a reputable reseller with a history of selling quality 3D printing equipment. The mention of Comgrow establishes trust and context for the t500's introduction and review.

💡3D Printer

A 3D printer is a device that creates three-dimensional objects from digital models by adding material layer by layer. In the context of the video, the 3D printer, specifically the Congo t500, is the main subject of the review, with its features, performance, and print quality being evaluated throughout the script.

💡Print Volume

Print volume refers to the physical space within a 3D printer where objects can be printed. The Congo t500 boasts a large print volume of a 500mm cube, which is a key feature emphasized in the video, showcasing its capability to handle large-scale printing tasks.

💡Linear Rails

Linear rails are components used in the motion system of the 3D printer to guide its axes, ensuring smooth and precise movement. The t500 uses modular linear rails on the X, dual Y, and dual Z axes, which contribute to its high build quality and printing accuracy, as mentioned in the review.

💡Clipper

Clipper is an open-source 3D printer firmware that is user-friendly and customizable. The t500 runs on Clipper, which is significant because it allows for ease of use and the ability to make adjustments and updates to the printer's operation, as discussed in the video.

💡Touch Pad

The touch pad on the t500 is a 7-inch interface that is similar to a Sonic PAD and runs on a quad-core Cortex A53 processor. It is used for interacting with the printer's software and initiating prints, serving as a central control unit for the machine.

💡Extruder

An extruder is the component of a 3D printer that melts and pushes filament through the print head to create layers of an object. The t500 features a dual gear direct extruder, which is highlighted in the script for its ability to handle a variety of filament sizes and types.

💡Print Speed

Print speed refers to the rate at which a 3D printer can create an object. The t500 is tested for printing at 180 millimeters per second, a speed that impacts the quality and efficiency of the printing process, as demonstrated in the video's various print tests.

💡Voxel PLA

Voxel PLA is a brand of filament created by a print farm in Southern California, known for its high quality and reliability due to extensive testing. The video mentions Voxel PLA Pro, a modified version of PLA that supports high-speed printing, which is relevant to the t500's capabilities.

💡Auto Bed Leveling

Auto bed leveling is a feature that allows a 3D printer to automatically adjust the print bed to ensure a flat and even surface for printing. The t500 performs auto bed leveling by probing 49 points on the bed, which is crucial for achieving high print quality, as shown in the setup process of the video.

💡Quality Control

Quality control refers to the processes used to ensure that a product meets certain standards of quality. The video discusses some quality control issues found in the prototype t500, such as defective screw threads and a disconnected heat cartridge cable, which are important considerations for potential buyers.

Highlights

The Congo T500 is a 3D printer prototype with a large print volume of 500mm cube.

Comgrow, primarily known as a Creality reseller, is entering the 3D printer market with the T500.

The T500 features modular linear rails on the x, dual y, and dual z axes for enhanced stability.

The printer uses a 600-watt Meanwell power supply to heat the large bed effectively.

Clipper firmware is utilized, with a 7-inch touchscreen pad handling processing tasks.

A 32-bit motherboard connects stepper motors, limit switches, and the print head.

The T500 includes a six-and-a-half-to-one ratio dual gear direct extruder and comes with three hardened steel nozzles.

The printer is priced around $900, offering significant hardware features for the cost.

Voxel PLA sponsors the review, providing high-quality and affordable PLA Pro filament.

The T500 setup involves attaching the gantry to the base, reinforcing it with brackets, and connecting cables.

Auto-home, Z calibrate, Z tilt, and bed mesh functions ensure proper setup and leveling.

The printer achieves a print speed of 180 mm/s with reasonable print quality.

The print bed heats up within acceptable timeframes, with a slight temperature variance from center to edges.

The review identifies an issue with the print surface adhesion and recommends using glue to facilitate print removal.

The printer successfully handles various filament types, including PLA, PETG, TPU, and nylon carbon fiber, with some minor cooling issues noted.

The review concludes with a positive overall assessment, highlighting the T500's potential and value despite some quality control issues in the prototype.

Transcripts

welcome back to Aurora Tech Channel

today I will be reviewing a huge machine

the Congo t500

this is a final prototype from com girl

and the retail version may have some

minor changes but I will just base my

review on my personal first-hand

experience with the machine that I

received

many of you may not have heard of

comgrow they are one of creality's

resellers who have been selling

thousands of creality printers on Amazon

for many years

previously I reviewed their laser

engraver the Z1 and the mini desktop CNC

the t500 is their first 3D printer and

it's an interesting choice to start with

something at this size but let's take a

look at what you can get from the t500

as the same suggests the printed volume

of this large bed Slinger is a 500

millimeter Cube which is bigger than

anything I have reviewed before

the total way of the machine is over 80

pounds

the motion system uses modular linear

rails on the x dual Y and dual Z axes

there are two brackets made of solid

aluminum at the back to enhance the

rigidity of the tall gantry

the print surface is a spring steel

sticker sheet and a meanwhile 600 watt

PSU is used to heat up the huge bed

the machine runs Clipper and it uses a 7

inch touch pad that's pretty similar to

a Sonic PAD as its touch screen

the Linux OS and Clipper are actually

installed on the pad

the 32-bit motherboard is used to

connect the stepper Motors limit

switches and the print head while all

the processing is handled by the 7-inch

pad

the hardware of the pad isn't specified

on their product page but as it's from

maker base I believe it's a megabase 7

inch pad that runs on a quad core cortex

a53 processor with one gigabyte RAM and

8 gigabytes emmc which is pretty

standard configuration for a Clipper pad

there is a six and a half to one ratio

dual gear direct extruder and although

the heater block is a volcano style one

it's using a non-volcano style nozzle

it comes with three extra hardened steel

nozzles sized at 0.4 0.6 and 0.8

millimeters for other small details the

belt tension can be adjusted using a hex

wrench on every linear module and the

filament roller is all metal with an

adjustable screw to control the

smoothness of the bearing inside

with all these Hardware components this

machine is priced at around 900 I would

like to thank Conger for sending us this

machine to review but before we get

started I would also like to thank voxel

pla for sponsoring today's video

voxel pla is a brand created by a print

Farm in Southern California where they

exclusively use their own filament with

over 150 3D printers that are operated

24 7 non-stop this extensive testing

leads to high quality and reliability in

their filaments

voxel pla Pro is a modified version of

pla that provides higher impact strength

and supports high-speed printing of up

to 500 millimeters per second while

maintaining a flow rate of up to 25

millimeters Cube per second at a regular

printing temperature of 210 degrees

Celsius

voxel pla Pro is also affordable at just

16.99 for a one kilogram roll ordering

three rolls comes with free shipping and

bulk discounts are available starting

from six rolls

they have recently launched new filament

colors as well as the vision enclosure

kit that includes all the necessary

parts to fully enclose your bamboo lab

p1p for more information please visit

voxelpla.com

the machine comes with a large box that

weighs almost 90 pounds

all the parts are well protected by

laser cut foam and even though the

machine is huge the components are

pretty simple

it's a typical bed Slinger but

everything is just bigger

we have a fully assembled base with dual

y-axis modular linear rails the Gantry

with the Dual z-axis the x-axis and the

print head

there are also two brackets to reinforce

the Gantry a 7 inch Clipper pad the

screen Mount filament holder power cord

a tool box user manual and a roll of

sample filament

like all other bad singers you just put

the Gantry on the base

the good thing is the screws were

tightened from the top so you don't have

to flip this heavy printer and tighten

them from the bottom

put the brackets at the back to

reinforce the Gantry Mount the spool

holder on top and not the screen bracket

on the right side

when I compare the screen to a regular

4.3 inch touchscreen it looks huge but

it doesn't seem all that big on this

t500

there's also ribbon cable with a cable

chain so we just need to put it on top

of the Gantry and connect some cables

including the print head x-axis motor

and limit switch the Dual C access

Motors and two cables for the screen

finally flip to your local voltage with

the power supply at the back

let's turn on the machine

I'm happy to see this standard Clipper

screen personally I prefer this more

than any self-developed UI by different

manufacturers

I will start with auto home to make sure

the stepper Motors limit switches and

the inductive bet Leveling Sensor all

working

then go to the leveling menu Z calibrate

means the offset and Clipper Z tilt

means Gantry leveling and bed mesh Means

Auto leveling

I will start by setting the Z offset

with a paper test

as there is no leveling knob underneath

the bed and we don't have to adjust the

bed corners

next I will let it level the gantry

finally I will do a round of Auto bed

leveling it's going to probe 49 points

on the bed

okay the setup is now done

let's start with a simple benchy the USB

drive comes with a skin Cura I would

just add the Congo t500 and there are

two of them I'm not sure which is which

so I will just randomly pick one

let's take a look at the print profile

the default layer height is 0.2

millimeters the print speed is set to

180 millimeters per second the walls are

being printed from 140 to 160

millimeters per second the top and

bottom are 100 the first layer is 40 and

the acceleration is set to 3000 and 1000

for the first layer

let's take a look at the extruder the

retraction distance is 0.5 and the speed

is 40 millimeters per second

so everything seems pretty reasonable

let's slice a benchy the estimated time

is 33 minutes I think there's no way

that printing at 180 milbers per second

will finish a bench in 33 minutes but

let's connect the Moonraker plug-in and

send the print job to the machine

type in the machine's IP address check

the ultimaker format thumbnail and we

can upload it to the printer and start

the print

thank you

let's do a sound test I place the meter

a few inches away from the machine it

stays in the low 60s in decibels and

occasionally jumps to the mid 60s

I will let it finish and then see the

time and print quality

the print finishes in 43 minutes which

is 10 minutes longer than the estimated

time and is more in line with my

expectations from a 180 print speed

the quality is pretty decent for a fast

machine with good Cooling and just a bit

of stringing

however I had issues with removing the

print from the bed and accidentally

damaged it

I talked to Congo about this and I will

discuss this more later

but for now I would just apply some glue

to the bed to work as a release agent to

continue my testing

I will then print a number slider to

test the clearance as you can see I've

applied some glue to the bed to avoid

causing further damage to the print

surface

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foreign

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the print finishes in 3 hours and 17

minutes which is almost an hour over the

estimated time there is some stringing

and using this clear color for the

number slider the numbers are hard to

see however the clearance is good so the

slider is very smooth

then I will test the retraction of the

extruder by printing my honeycomb box

which is Tiny patterns on all sides

foreign

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than I would prefer but all of the

patterns were printed successfully

let's do a comparison to other New

Generation machines it's not the best or

the worst I would say it's a pretty

average print compared to all other

machines

next I will print the robot alpaca from

perusa and compare its print quality

with other machines

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foreign

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it took 5 hours and 48 minutes which is

way longer than the estimated time from

the slicer let's do a comparison to

other New Generation machines

When comparing it to the ender3v3se

which also printed this model at 180

millimeters per second the print speeds

are pretty much the same but the print

quality on this t500 is better

compared to the fastest machine that has

printed this model so far which is that

any cubic Cobra 2 the Cobra 2 offers

better quality and print speed in

comparison to the creality K1 the print

quality is similar but the K1 is faster

in comparison to the bamboo lab p1p the

p1p provides better print quality and

faster speed

lastly when compared to the Anchor make

m5c the print quality of the anchor make

is slightly better but the t500 is

faster

I will then switch to a 0.8 millimeter

nozzle to print a large lampshade

the height of the lampshade reaches the

machine's maximum at 500 millimeters

since the maximum flow rate of this hot

end is approximately 30 millimeters Cube

per second when converted to a 0.8

millimeter nozzle it reaches about 58

and a half millimeters per second

so I will set the print speed to 50

millimeters per second and the first

layer is now printing at 25 millimeters

per second

the print starts at 25 millimeters per

second for the first layer and it has no

issues

once it starts to print the wall it

speeds up to 50 millimeters per second

which also looks fine

however I can see some overhanging at

the lower half of these squares having a

minor cooling issue

the top half of these squares print

better than the lower half

I will try to slow it down to 50 of the

speed at 25 millimeters per second and

see if there is any difference

the clarity of the filament does look

better when printing slower but it seems

the top half is still better than the

lower half and slowing it down doesn't

make a huge difference

anyways I do like the clarity when

printing at a slower speed and it would

also be better as a lampshade

so I will just print at a slower speed

and let it finish

okay it appears that both the extruder

and hot end can maintain a 50

milliliters per second speed as I didn't

see any under Extrusion issues on a

print speed of either 25 or 50 movements

per second

but the bottom half of the squares still

shows some minor cooling issues on the

overhanging part

the print took 12 and a half hours to

finish which is way longer than the

estimated time since I slowed it down to

25 millimeters per second

despite some cooling issues on the

bottom half of the squares the lampshade

still looks cool and I'm quite happy

with this print

then I will print a kitchen towel hanger

using petg since the maximum temperature

of this machine only reaches up to 80

degrees Celsius

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okay

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people

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the print finished in one hour and 35

minutes displaying typical petg

characteristics with minimal stringing

it is fully functional and I have no

complaints

next I will print a TPU wallet I will

set the print speed to 50 millimeters

per second for everything including the

first layer and walls

foreign

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this six and a half to one dual gear

direct extruder also handled it very

well and the Extrusion was perfect

finally I will print with some nylon

carbon fiber I had stored a few rolls of

nylon and nylon combination filaments in

the new sunloo S4 filament dryer in

storage mode before using them I also

heated them at 70 degrees Celsius for

another hour to ensure that the pacf was

in good condition

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thank you

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the result is very nice the layers look

good and the print is fully functional

so for nylon carbon fiber if the

filament is dry enough you really don't

need anything fancy

any machine with a hardened steel nozzle

at 260 to 270 degrees Celsius works just

fine

let's talk about the pros and cons of

this printer starting with the pros

one the motion system is excellent it

uses module linear rails on the X do a y

and dual Z axis making it almost as good

as a 3000 snapmaker Artisan in terms of

the motion system

two the frame is super rigid there are

no issues even with this huge 500 by 500

print bed swinging back and forth and

the 500 millimeter tall guarantee is

also sturdy

three the z-axis is supported by dual Z

modules with two independent stepper

drivers so Clipper can use the inductive

fat Leveling Sensor to level the gantry

there are two manual knobs at the top

when the machine is off you can still

manually move the Gantry up and down for

nozzle changing or other maintenance

4. the print speed is fairly Fast

Printing at 180 millimeters per second

with a 3 000 millimeters per second

squared acceleration at a 0.2 millimeter

layer height

printing a standard quality 0.2

millimeter layer height Banshee in 43

minutes is reasonable considering this

large bed Slinger can't move as fast as

a small printer

five the print quality is decent it

passes all the tests including clearance

and retraction

for decorative prints like the robo

alpaca the result is in line with other

latest generation machines

six

the firmware uses open source Clipper

and the screen is a standard Clipper

screen

you can have SSH and root access using

the default makerbase Pi login and

password

for the web interface it also uses

standard fluid

this decision is actually smarter than

what some other manufacturers choose by

trying to modify Clipper firmware or

create their own touchscreen UI and

framing it as their own self-developed

system this often ends up with buggy

firmware a bad UI and it overall ruins

the user experience

7. the print bed is big but it can still

heat up within a reasonable time frame

the machine comes with a 600 watt

meanwhile power supply

heating from room temperature of about

25 degrees Celsius to 50 degrees Celsius

requires around four and a half minutes

heating to 60 degrees Celsius requires 7

Minutes 70 degrees Celsius requires 10

minutes and 80 degrees Celsius requires

16 minutes

the temperature difference from the

center to the edges is around 7 to 13

degrees which is acceptable for a bed of

this size

8. the filament holder has a bearing and

a screw for adjusting smoothness it can

feed the filament smoothly without

causing it to roll back and create

filament tangles

now for the cons one the main issue I've

encountered with this printer is related

to the print surface it sticks too well

to PLA and the adhesive used to attach

the print surface of the steel sheet is

pretty weak as a result the print

surface attaches from the steel sheet

and tears or peels off when a print is

being removed however after glue is

applied the printer works perfectly fine

two the nozzle's maximum temperature is

300 degrees Celsius but the maximum bed

temperature is 80 degrees Celsius you

won't be able to print ABS ASA or

polycarbonate as these materials

typically require a heated by

temperature of 100 degrees Celsius or

higher

three the cooling is sufficient when

printing with a 0.4 millimeter nozzle

but when using a 0.8 millimeter nozzle

the extruder is pushing out much more

filament

printing at 50 Motors per second with a

0.88 millimeter line width and a 0.64

millimeter layer height results in a

flow rate of close to the hot end limit

of 30 millimeters Q per second both the

hotend and extruder can keep up but the

overhanging on the bottom half of the

square is not as good as the top half

this is mainly due to insufficient

Cooling and this was confirmed when I

slowed down the print to 50 of the

original speed and still saw no

improvement

4. the location of the filament sensor

could be improved it would be better if

it were integrated into the print head

currently it's positioned one to two

inches above the print head which can be

kind of obstructive when feeding in

filament

5. the input shaper was pre-calibrated

in the factory and I didn't recalibrate

it as my FL Sun V 400 machine has also

been using pre-calibrated values for a

year and hasn't encountered any issues

it seems that this t500 is a similar

case but when you need to attach an

accelerometer you still need to use

screws and attach it to the print head

using can bus with one single cable and

integrating the accelerometer into print

head like many other New Generation

machines would be a better option

six

since the machine I received is still a

prototype there are some quality control

issues for example two of the screw

threads were defective and the heat

cartridge cable was disconnected when

the machine arrived so at first the

nozzle couldn't heat up

when I open the printhead cover for

inspection I found that the heat

cartridge cable had come loose even

though hot glue had been applied

this issue was mainly caused by the

cable being too short and the zip tie

being too tight causing it to pull on

the cable and detach the connector

in conclusion the harbor of this printer

is solid it uses modular linear rails on

all axes and it's very uncommon to see

this kind of motion system on a 3D

printer

I've only encountered a similar motion

system on another three thousand dollar

Machinery reviewed the snapmaker Artisan

while the small details on the snapmaker

are better the actual cost of living

your modules for both machines are

similar

considering that the t500 is priced at

around 900 with this motion system seven

inch Clipper pad and 600 watt meanwhile

power supply the hardware itself is well

worth the price the print speed and

print quality are satisfactory and the

print volume is enormous so I would say

this machine has a lot of potential and

the overall value is also pretty good

quality issues I saw were reported to

comgrow and they assured me that they

have addressed them and will conduct

detailed inspections during large scale

production regarding the print surface

they explained that the one on my

testing machine was manually glued and

attached but for large scale production

all of them will be processed by

machines producing more consistent

results

as I haven't had the chance to evaluate

a final large batch production version

of the t500 I can't confidently place

this machine on my recommendation list

just yet

currently only seven out of 100 machines

I've tested have made it to my list of

recommendations on auroratechannel.com

if I find that their large batch

production has addressed all the quality

issues I will definitely consider adding

it to my list in any case I've put a

link to the Concord t500 in the video

description

that's it for today's video if you found

it useful please hit the like button and

consider subscribing to our Channel

thank you for watching and I will see

you next time