Comgrow Robo CNC Review: The best first budget desktop CNC router / engraver for beginner?
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- เผยแพร่เมื่อ 23 ต.ค. 2021
- Previously, I made a few videos on upgrading the 3018 CNC, which is the cheapest CNC machine in the world. I put a 500w spindle on it and it can cut aluminum slowly with a quite acceptable result.
Since the structure of the CNC 3018 is not rigid, especially as the X-axis moves a lot when working on metal, I want to get another mini desktop machine with a more rigid frame. I recently found this Comgrow Robo CNC engraver. It came with an aluminum frame, larger diameter 12mm linear rods on both the X and Y axes, 6 limit switches, a Z-probe, an emergency stop button, and an offline controller.
Today, I am going to assemble and review this Comgrow Robo Mini CNC Router ...
I am happy with this machine, for beginners to buy their first budget desktop CNC router, I would recommend this Comgrow Robo CNC over the cheapest CNC3018. I have purchased another 800-watt spindle and may make more videos for the spindle upgrade and make some aluminum parts with this machine. If you are interested please check out these links:
Comgrow ROBO CNC affiliate links:
bit.ly/3x3uRT0
$199 using discount code: BS40
Buy from Amazon:
amzn.to/3B9xjGA
Related Video:
Comgrow Robo CNC Upgrade 500W and 800W Spindle:
• 500W or 800W spindle, ...
How to design a 500W/800W Spindle mount in Fusion 360
• Fusion 360 Tutorial fo...
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/ aurora_lung - วิทยาศาสตร์และเทคโนโลยี
I love her "voice", so clear and gives a great sense of confidence. Great job. The old soul inside the teenager speaks out loudly. You have a bright future as online teacher/tutor should you pursue it, just as some musicians or artists are natural, having great articulacy and a crisp clean vocal is quite rare nowadays.
I would be very interested in seeing the spindle upgrade for this machine! Great video.
When I was your age, I was doing science fair...once a year and NOT to the same standards you and your brother do every week. You have many, most? adults beat, and I hope you keep up this meteoric rise.
By the time you hit your 30's, I expect you to have already changed the world in ways I can't imagine now.
This must be what it was like to be in the room when a young Mozart sat down at the harpsichord.
Now, excuse me as I have a $259 piece of hardware to buy. A brilliant girl and her brother on TH-cam recommended it, and I'm coming to trust their judgement on these matters.
Well done! As usual your videos are thorough and well-produced!
Thanks for the great video. Can't wait for the Comgrow UPGRADES video. Cheers.
I’m glad to see your reviews, since they’re very honest and thought out. Love it. I wish i knew about this machine a month ago😅 3018 pro needs a lot of upgrades…
Great how you make it clear why this is the better super cheap router. I also like that nifty offline controller. You put so much effort into your preparation and then you present us with such informative videos. FAN-TAS-TIC. I miss the part where you show the funny cut-outs.
Amazing in-depth review just put one in the cart for small wood projects can’t wait to get it and use it
Thanks another very informative video. Your presentations are really professional quality. 👍👍
Nice demonstration, and the young lady is adobrable. :) Great representation of a solid product.
Love to see your upgrades on this and I think I'm going to pull the trigger on buying this
Honestly, if they upload a video on the spindle upgrade I will definitely go for it too
I’m on the bandwagon with you guys
Another great video with informative content as usual. I would love to see an update when you upgrade the spindle. Any plans to update us on the Sapphire and Ender 5 CoreXY conversion?
Great job on the video! May I ask how long it took you to do it? It was really great. Your procedure is so clear and your descriptions make it easy to follow. I'm sure people will enjoy your videos!
As we have school on weekdays, we normally record some clips after dinner and work for 2-3 hours. For this video, we recorded around 120 short clips but many of them were not used in the final video.
So I would say we spend 2 hours on content planning, 15 hours on recording + quick editing, and 3 hours on final editing, the total time we spend on a typical 10-15 mins video would be around 20 hours.
Great video. Not gonna lie. Nice setup of printers in the back. I'm jealous. Subscribed 👍
Thanks for this and all your videos. They are very helpful and enjoyable. Please do a video on the spindle upgrade. If you are happy with that upgrade I plan to purchase this CNC and do the same upgrade.
Hey Aurora! I purchased the Robo CNC and did the 500W spindle upgrade. I have been able to machine aluminum and create the landing gear parts for my RC EDF Jet models. Thanks for your videos. They really helped me accomplish my goal!
Saw this one online also. I passed on this one and stuck with the 3018 Pro Max. The design choice for the Comgrow is very interesting, I dig it.
Hi. How are you doing with the Pro Max? I am seeing it at 230 in Amazon.
awesome channel! Your content is just what I need. Keep going : )
Excellent, very practical video review, thanks.
Awesome as usual. Love the videos.
Great job, you are impressive whit your videos, keep up the good work 😁
Yes lets see a motor upgrade. Also can you show the main board
Great video! I do note that using a similar piece of scrap wood floor sample my z hight does not reach all the way down before it hits the z endstop switch.
You can adjust the clearance height in Fusion 360 CAM or edit the gcode file manually to avoid that.
I recommend you to attache a plywood to the bed, then you drill a 1 centimeter x 1 centimeter matrix hole and finally you carve the surface so the bed will be totally parallel to the router. Then, every time you want to carve a material, you will know exactly where you have to drill the material in order to screw it to the bed
This kid is sharp. Well made video. Thanks.
You are going places. Keep it up.
Love the review!! Can I engrave steel tumblers with this machine? And what roller could I use?
Baby cnc vs mini lathe head to head in a no holds barred title match for cutest little home workshop thing
Stock motor has a 44mm diameter so a larger 500w motor will need a 52mm or so mount. As the rails are larger than a stock 3018, it doesn't look like any pre-made mounts will work. This will need a new 3D printed mount. If one is made, include a mount for the Z axis switch this model has if possible.
Eager to work with aluminum.
Also, have had no luck in using the Z probe with Candle- once you set the height, it is still hovering off the work surface, but that seems to be a Candle issue.
Yes, you are right. I emailed comgrow and they sent me the spindle mount STEP file, I will modify it to fit 52mm and share it in future videos when the upgrade is completed. BTW, I Universal Gcode Sender, I think it's better than candle.
@@AuroraTech
Thats what I'm waiting for, would love to be able to make metal brackets and such! It is a nice looking machine for that price. Thanks!
Cool! Buying it as we speak :)
Thank you. Great Video.
I am officially falling in love....😍😍😍
thank you for this video. I learned a lot. I wish it has at least 450 x 350mm work area, What CNC would you recommend for this size?
I would suggest redoing the aluminum milling test, but this time use cutting oil.
hey try to shorten up your endmills put as much in the collet as you can, also buy ones with shorter flutes. less vibration and flex this way.
hello from Russia, You ara the Best(est)!!!!
I like this one. Is putting a larger motor on it simple?
Just subbed to your channel, well done
Nice video! I keep watching you coz you look like Vietnamese, my countryma. :))
Can any of the budget CNC units find the center point of anything that is clamped into the bed area, or would each piece need to be hand measured with a ruler(?) Reason I ask, I'm tryng to figure out how much extra post-production (non-CNC) cutting would be needed, after the CNC work is finished(?) That said... love the videos!
This was a great desktop one I've seen! I did consider buying it. But doesn't seem to be available anymore! Perhaps you know some alternatives to this one? Thanks
GOOD JOB!
I would love to see an update when you upgrade the spindle
Here you are:
th-cam.com/video/RittTNl2lKg/w-d-xo.html
If you’re not sure on how deep to cut a groove, set your g-code to make a shallow cut. Set the z axis for plenty of room between the tool and the surface of your work during rapid moves. If you want to go deeper, move the tool off to the side of your work piece and run the tool down so that your z axis is at zero. Jog the tool down the amount you want more cut out and reset the Z axis to zero. You can run the same code without changing it and the tool will cut deeper the amount you moved the z axis. Also the other direction, if your code is set for a deep cut, you can raise the tool up from the zero position and reset the z axis to zero. Again without having to change the g-code and it will cut a shallower groove.
Se puede cortar manualmente con el control o solo es para posisionar
I can’t find any machine that looks solid and has 500 watts or more for under $1300 so I ordered this since it is $203 on Amazon now with Prime shipping. I guess I will have to do your mods. I took from your video that the 500 watt motor is better than 800 due to working at lower RPM.
Can it cut 3d wood objects?
I would like to make some knife handles.
Good job.
Did you see the new Sainsmart CNC 3020?
Hello I have a question
I use Comgrow CNC every day. I bought jz based on your recommendation. Unfortunately, recently the bearings in the spindle broke and I had to buy a new spindle. Because it was nice to get an original one, I bought a Genmitsu GS-775M 775 CNC Spindle. Unfortunately, it does not want to work with the Comgrow CNC motherboard. It starts shaking strangely for a second and then stops. Do you know what could be the reason for such behavior?
What settings did you use to cut acrylic? Bought this machine and having issues with material(acrylic) that melts around the "drill" (the ones that came with the machine).
Feed soeed:100mm/min
Incised speed:30mm/min
Cutting depth:1.5 mm
Spindle speed:10000rpm
Spend Time: 2hours and 30 minutes
I hooked everything up like in the video. I have power to the offline controller, but when I try to move the axis nothing happens. Do I have to have the blue usb plugged into the machine for this to work?
can this machine cut acrylic, its for making PC distro plate for water cooling.
hi, what do you think of the new 3020 Pro Max ? think it came out just after this video lol its allready got a 300w spindle and aluminum and steel frame, any chance you will get one for a review?
I do have one. Its not bad, but has a few issues to be fixed.
E.g. endstops, play in the nut holder from y
Do you think this would engrave well on aluminum dog tags/ key tags? Thank you very much
Yes, I think you can use superglue and blue tape to fix the tag on a board to engrave it.
Can we cut stencil with this machine
Hello i am planin on investing in this machine but what is the limit of its z axis you have machined in this
You sure you have the right kind of ally for milling? I milled 5mm 5251 ally on a stock 3018 25mm min 0.1mm step down no problem
I tried to buy this a couple weeks ago, and I was informed that this model has been discontinued and all existing stock was recalled!!! Have you heard of this?
Do you think it could do stainless steel engraving ?
I think light engraving on stainless steel should be fine at a slower speed, but not cutting.
@@AuroraTech Light engraving like 0.1mm ? And with the 500w spindle upgrade ?
Has anyone found how to upgrade the spindle on this???
Here:
th-cam.com/video/RittTNl2lKg/w-d-xo.html
Does anyone have experience on how this machine works or will work with high-density graphite blocks to create casting molds? Comments well appreciated.. Dan
How much is this?
Aurora, please send me the grbl $ config from this cnc. List $0 until $132. Please
Every 3018 is a bad joke compared to this. It is solid and rigid with the X axis being the shortest. It has nicely designed axis knobs.
I tried the Sain Smart 775 ball bearing upgraded spindle. They both have .001" (.0254mm) run out which is a problem for metals with this diameter cutting bit. I think it is a problem with the machined collet these motors use. Get rid of this runout and with proper feeds and speeds, this will cut steel. I will say again, proper feeds and speeds.
The Pulse Width Speed control does not work well for these small motors and can be very noisy. I ordered a proper benchtop power supply and it runs much smoother and quieter. When I have the time, I may go back and redo the spindle collett but I have other more precise machines for steel. A precise spindle is the answer, not more power.
Hello dear, I just bought this model and was wondering what type/brand/model of spindle could I buy to upgrade it? As you mentioned, it is a bit underpowered for certain applications. Great video and I just subscribed.