DIY CNC Plasma Table - Part 2 Linear Rails
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- Опубліковано 21 сер 2024
- This is part 2 of the DIY CNC Plasma Table build. The Y-Axis linear rails are installed along with the motor plates and gantry supports. This project is finally starting to look like a CNC Plasma Table.
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Tools and parts used in this video:
1500mm Linear Rails - amzn.to/2pBgB0X
Hanson Metric Tap Set - amzn.to/2GRgxBx
Dial Indicator - amzn.to/2HUp8me
Automatic Center Punch - amzn.to/2GVLH9o
Drill Press Vise - amzn.to/2taiXYu
Thanks for watching!
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#cnc
#cncplasma
#bearings
Thank you very much,your videos have given me some great ideas for how to make my build easier..very much appreciated 👏
Glad to help, thanks for watching!
The amount of precision he's putting into this reminded me of my first CNC build. Now that I've done several I've realized it absolutely isn't necessary, especially on something like a Plasma cutting table. The tenths you're fretting over will be magnified many times over on a second by second basis by your arc characteristics. A plasma table is NOT a precision CNC machine.
Yeah I found that out later in the video series and a THC solved all my cutting problems.
Exactly. The THC will compensate for the much greater difference on the guide rails, especially since the material being cut usually tends to bend. It is important that the gate moves with even resistance along the entire length of the table. Thank you for the movie and best regards.
Appreciate the explanations and practical of use for dial indicator.
Turn the rail over - swap ends - and check it again.
It its the rail the bow will be down.
If its the steel the direction of the bow will not change.
I've come to the conclusion that many of the inexpensive rails are out of straightness as delivered. They probably warp from the heat during grinding. What I do is make sure all the mounting holes in the frame are in perfect alignment. Install the outside bolts, leaving them a tad loose. Then put force on the rail while checking alignment, and clamp the rail down until I can snug down the remaining bolts. The bolts will keep it straight.
Great video. Like your little band saw but don't need to spend so much time watching it work. Also you could consider making yourself a stop for doing multiple cuts at the same lenghts. Thanks again for no music :)
Thanks for watching!
IT'S PLASMA. NO PROBLEM..
Plasma won't care about that small deflection. You have a rolling cart and the sheet metal won't likely be that flat as it warms up. Nice video. Looks like you're having a good time. I would be interested in the input. make an image and sending it to the machine.
It sucks getting damaged items when you place an order. Fortunately you were able to get it replaced.
Should be a very useful tool once you complete it and having a router head as well as the plasma makes it so much more flexible.
think it would be safer to clamp a known straight piece of bar (like a machinist staightedge) and clamp that one the legs , ajust the ends so its the same height both sides , then measure along the whole length
knowing the straight edge is straight take a lot of guessing out of dailing the rail in
Hi i am wisnu from indonesia .
I am very2 happy to see your video.and I hope for nex time you can up load how to install and setting mach3 use plasma cutting.
Thanks
Rail has the bow in ti because you have clamped it from the sides? You don't need much force when clamping it at the sides to then talk it is bowed for few thousands of an inch...
4:00 and sir, do sharpen your drill :) one should drill into construction steel like into a butter
The high spot registered on the dial indicator is more likely caused by the rail bowing downward from the weight of the "rig" (whatever you call it; did not catch it if you said it).
Yeah but the measurement went high, not low. Plus it doesn't weight enough to cause the 11ga steel to bend. Thanks for watching.
plates for adjusting the horizontal rail is just genius
Naaah dude! That's done All the time. even your Street-lighting posts are adjusted this way!......
Are you sure its the rail out and not the square stock? I would check by using a known flat surface or check the rail on the other square stock. if there is a differenc between the 2 its NOT the linear rail thats out.
Buen video (Y)
I work, assembled machines with the same structure, only they have, a tank between the rails. My problem has been aligning the rails on each side, to ensure parallelism and squareness. The rails are located at a distance of 3 meters from each other. Do you know any technical and effective alignment system. Well, I do it empirically with a tensioned steel wire.
Great videos! Building mine up now. What thickness was your carriage plate, that bolted to the Y axis linear guide blocks? Looks 6mm? Thanks!
I think it is 3/16" not sure on metric size.
are you considering these steel tubes flat ? lol.
and even more they may have been welded with some of these non-machinist cheap magnetic 90° holders and the tubes were most probably distorted during the welding.
Well if you lapped these tubes in place i would understand the trust you put in this tube's surface.
Anyways i havent watched any other video from your channel, i could be wrong.
:) nice precision i think not necesary to do high precision in Z direction plasma cuting compensate Z high witch THC but its more importand hawe square in X-Y directions this is more importand and take a look to can adjust this two axis i created one plasma cnc in garage witch separated fream from table and Z high its not big problem controler witch THC corect in time all diferents in high from torch to material in my chanel i put now video how cut big closed profile 4mm thiknes in two side some diferents in material high ned mount torch upeer or downer sorry for broken english :)
I know I'm late to the party, but may I suggest that it might have been your tubing which is bowed, and not the rail. Just a thought.
Very nice build by the way.
Thanks for watching. It's hard to tell which one was bent, lol. With my luck it was probably both.
@@MakingStuff, true, from my experience tubular steel is rarely "perfect" to within a couple thousands of an inch as manufacturing tolerances are not as tight as in the machinist segment. But for plasma, they can be pretty loose, Thank you for posting your videos, it is interesting to watch, and very informative.
What size tubing did you use where the linear rails were attached to? Thickness?
It's 2 inch
how do you know the tube is dead on nice work there . you will get there THC will fix some off sets make is square that's more important
I put a straight edge on the tube. It's not perfect but close enough for this project. Thanks for watching.
Exciting series! I would like to start a build myself. Are you following any plans?
I've got 3D drawings that were drawn by looking at other CNC machines. The 3D files are available to Maker+ patrons on the Making Stuff Patreon page. www.patreon.com/makingstuff Thanks for watching!
hi, thank you for this videos .....i want ask you :-
1- can you tell me the dimension for table please
2- can i use arduino uno withe 4988 in this plasma cnc ?
All of the 3D files are available to Maker+ Patreons.
@@MakingStuff ok thank you
How are the linear rails working any problems with them?
Working great. I just put a little bit of oil on them every now and then but that's it.
Great build.
How well is the 6mm wide timing belt holding up? I'm thinking of doing a 4x8 table, do you think that much belting going to cause slop?
Thanks for the help
So far it has held up fine with no problems. I would suggest a gear rack for larger machines.
@@MakingStuff Cool, thank you.
Great videos and your way of talking makes it easy to understand what's being said.
hello if he/it pleases you that is what the electronic card and the software to use
I have my table built and the cabinet wired and am trying to setup the Mesa 7i96 to work with nema 23 425oz motors in plasmaC, i have the mesa card setup in linux and can ping it but have no idea where to go from here. Seems like eveything i try doesnt work and i am about to axe this thing and go with mach 3, any ideas or maybe a ini file that works for you.
Go to the PlasmaC section in the LinuxCNC forum. They are much more knowledgeable and have helped me fix several issues.
No music.
Cool.build but I really miss the music.
Be sure to vote on the Community tab for your favorite type of music. Thanks for Watching!
To 108" a linear rail For a good price Same size Can you send me to a sight words really affordable
I do not particularly like linear bearings, especially on how it is being used here.
Could you elaborate?
@ Linear (line form factor) is not the preferable bearing type contrast to bearings on a cone or race. Linear also make more noise as they travel, they are cheaper and the tracks are housed in resin. The context is of my post is within the application for 3D printers and CNC builds. The form factor allows them to be manufactured cheaper than bearing have a bearing race. I found that linear bearing with most 3 D printers have loose tolerance. One may drag while another will move freely.
@@bobcatt2294 thanks!
Your drill speed is too high. I didn't see any chips fly. It took you some time to drill that hole.
Video speed is increased cause the drilling takes forever at normal speed.
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Way to much effort making this thing perfectly flat. It's a plasma table if you were off by a 1/32 it likely would make no difference.
Yeah I eventually figured that out. Especially when using a torch height controller. Thanks for watching!
@@MakingStuff I enjoy your videos. Your craftsmanship is phenomenal.
sir you are not helping man