What an amazing gift you have in the design and engineering feat of these projects I have watched from your CNC and the Drill conversion you developed on the tube...The attention to detail and creativeness is such a pleasure to watch...Keep up the GREAT work and those amazing projects you have created

l've seen all your video (playlist making router ) you doing amazing , thanks for your sharing experience with us

Finally someone made a balanced gantry, good job! I've been thinking about doing same and also add linear encoders for extra precision on actual position vs calculated position.

Great Video! kept me interested the whole way through! I really like the Z axis in this CNC. You almost always see the spindle hanging off one side rather than centered up like this!

Very nice build. Almost makes me want to build another one or remake my current one to stiffen it up.

Love the video and project man, cool to see. Would love to watch more test cuts, maybe even trying harder materials.

Hi, hope you still read old video comments. Have been looking at you design for this machine. Love the attention to detail. Could you possibly make a series on how you designed this machine in fusion. Start to finish type with narration on your choices and the reasoning and perhaps show the spin of for the atc spindle and belt drive configuration. A lot of fusion videos that people are doing is small parts with a lot of the difficult commands and setup already done. (like the rigid point for movements, where to source cad files from when it's not on macmastercar, how to do the the assembly design) if you could have a look into maybe something like that would watch it. You can maybe do a poll in your next video to see if there is interest. Thanks again for the videos, they are great.

Lovely machine!

Whole build still looks for me kinda madness)) BUT. But the video you made is so informative ive learned A LOT from it. Thank you very much!

Rewriting my previous comment: I made some tests with the self levelling epoxy method and personally, I didn't find it to be a very good method to create flat machine surfaces. It was just too jelly to completely level once it stops flowing around, preserving small differences in height from the pour. This added to thermal expansion considerations between metal and epoxy, raised edges from the surface tension, rigidity and other problems in the video. Though I guess this could be a reasonable way of getting very large areas close to flatness, relatively easily and without too much work. (And for who still would want to try it, a few methods could be used to improve the results. Like building wider and longer epoxy canals, stretching beyond the intended rail-mounting area. This would keep the raised borders away from the edges of the rails and be removed after the epoxy hardens.) I'd consider machining the best way all-around to make mounting surfaces, IF the machinists know what they are doing and their machinery isn't scrap. (I once had a part from a shop worse than 0.2mm in parallelism over 40cm, straight out of face milling two opposite sides. That would be way worse than the self levelling epoxy in the video) For someone who doesn't have access to a machine shop, I'd consider shimming a better way of aligning rails or a plate to be used to mount the rails. Measuring and with whatever tools are available, like precision levels, straightedges and dials or fancier stuff could allow someone to build a machine as accurate as they are patient. As if it can be measured, it can be adjusted :p And hopefully none of the shims and bolts will get loose over time and throw everything out of alignment. I got my most interesting results during tests on precision scraping. With measuring equipment, reference surfaces and a good approach to measuring, mapping and spotting a surface, an angle grinder can be used to "quickly" grind down high areas down to near flatness in a steel part, to be hand finished. I haven't tested this with parts too large to be taken to a surface plate. But while testing, in a few days I could get a 75x160mm part to read less than 0.01mm of variation over it's surface. (Thought at this level of accuracy, heat from hand-holding parts has to be considered as it can warp it. And walking around can shift the weight over the ground and throw-off level measurements if it's not solid enough.) This is a very laborious and time consuming method, but still being used to make the high-end michining centers today. Though I'd consider it too laborious to be practiacal actually. As longer and larger parts take an exponentially large amount of work and time. But It could be taken as a choice for building a very accurate machine. If time, work and measuring equipment are not a problem.

A really informative summary of your build. It explained everything very well and showed a fantastic attention to detail. Thank you. I wonder how long it took?

Do you work in a mechanical engineering or related field? I'm really amazed at all of this and have been learning a ton!

Hello! Beautiful machine. I am so glad to see someone have a go at the balanced gantry design. I am extremely curious though, with your level of attention to detail and patience, why make this out of aluminum? I understand that it's cheap, readily available and easy to work with, but on a list of materials to make a cnc router/mill out of it's probably at the bottom. With your level of attention to detail you could have used any number of better materials for similar or less cost that would function much better, specifically at vibration damping. Very eager to hear your thoughts because you clearly have an above average understanding of the fundamentals on all other aspects of machine design.

Hi again! First :p Btw. Have you covered linear rail/ballscrew maintenance at some point?

Very, very nice.

i hope you also filled the non moveing extrusion with sand or concreat or epoxt granit ( more waight and / vibration absorbing in non moveing parts is always your friend )

Hi. Its a cool Project. I am planning to make gantry cnc as your`s but all parts will be iron casted insted of aluminium 15mm thickness with aerospace ribs. i just want to know How did you wire up two z axis

Second . . .too slow :(

Did you slow rpm on your chop saw to cut aluminium?

Beefy looking machine! what material were those test cuts, alu or steel?

훌륭합니다 당신의 기술이 참 좋아보이내요

Bravo 👏 :)...3rd

as beautiful as it is useless. Reinforced where not needed, weakened where needed. A classic portal needs only a little reinforcement so that it surpasses your design in terms of rigidity. But still, the classic portal will not surpass a simple movable table-rigid spindle, where the cutting load is always located in the center of the guide-carriage system. Including the choice of materials, their fastening methods, the design geometry, it is possible for you and gives you the ability to adjust for increased accuracy of the processing geometry, but the rigidity at the same time turns out to be terrible for such a massive machine, which is what we see.

Sorry I was far away from m phone

Change your broche