Making a Real Frame! - DIY CNC Metal Lathe Build! #2

super!

What do you think about milling the linear rail surfaces? Should I send it to somebody with a big gantry milling machine? Or should I try to manage it myself on my own milling machine making several holding setups? I'm still not sure about that.
Thanks for watching!

Hi! gorgeous welds. Just a thought regarding the hollow tube fill, you will get a greater mean density and improved damping properties if you vary the particle size. e.g. sand and small gravel. Easily reversible too. Epoxy granite is the classic solution here, but that can be an expensive business with all of the resins and experimentation - you also need to make sure your media is very dry. There are also some low-shrinkage cement mixes and additives which would likely work well too, but would likely benefit from mesh or bars welded into the tubes.

Faci treaba buna! Eu lucrez numai in inox, fabric masini de gogosi, masini de covrigi si divizoare de aluat pentru paine!

Could you maybe elaborate on the weld sequencing? How do you choose which weld to perform next based on the deflection of the previous weld sequence?
Thanks for showing this impressive project!

good job my friend

Your work great my friend
My what is your welder name I want to get one but I'm not how, here I saw cost 105$ is it good?
You have any recommendations

no stress relief? as someone who makes a living from calibrating precision machine tool i suggest.. as you introduce so much stress in those steel. surely, they will keep moving like crazy even after years.. try annealing if you can. or at least use vibration to at least help the stress relief faster. and you can test its resonance frequency cheaply by hitting and analyze the sound using spectrum analyzer. you can do it using android or your pc using microphone. you'll see how the frequency respons will move after hours of vibrating the structure. watch it until it's kinda give you a steady respons.. and filling with something to dampen vibration is the last thing to do.. just milling the linear rail surface will not going to give you accurate machine to a well-known standard, precision hand scraping, grinding or lapping is the way to go to get a measurable precision machine.. If you cannot measure it, you cannot improve it.

mate?

sand is not so dense, so it is a good idea to mix both sand and gravel together with epoxy and fill it with that, should give the best results. Looks super heavy duty btw

if you are going to fill it up with just sand or gravel use both to increase the density, if instead, you want to fill with epoxy granite use just sand because using a mixture of sand and gravel doesn't let the epoxy fill all the gaps resulting in a lot of air inside the cast and consequently a less dense block

ништяк!

Wez chłopie pradu dołóż bo te spoinki garbate to nic nie trzymają, te pachwiny to same przyklejenia.

Muito bom !

Belles soudures

Muy buen video amigo te felicito espero verlo terminado pronto saludos. Ah pero me sigue intrigando tu gusto por el mate .

big project

co to za tarcza do ciecia, która tak zachwalasz?
Fajny projekt. Ramę wypełniłbym żywicą z piaskiem kwarcowym. W konsystencji takiej gęstej papki. Dodatkowo usztywni konstrukcję, a odpowiednia proporcja nie powykrzywia ramy podczas schnięcia. No i finalnie powstanie monolit, a nie grzechotka ;)

Veo que mejoraste en tu forma de preparar el mate! Felicitaciones! 😄

look for high performance cement for machine beds its damn expensive but it wont shrink that much and make this frame rigid

Went on a tour of Ingersoll in Rockford Illinois once. To stress relieve the large weldments for some machines they had ovens up to 60 feet long and 12 feet in diameter. Definitely see the need her for stress relieving.

👍👍👍 czekam na więcej ! 😀

Excellent welder, you are... machinist?.... You're on your way. Your lack of spot drills is disturbing though LOL

When drilling large diameter holes or any holes you need to be precisely located, use a spot drill 1st. Make a little dimple .5mm deep. Doesn't need to be super deep. Put in the drill bit you want to use. The dimple from the spot drill will direct the drill bit into the material so there is a straight and precisely located hole. Plus if you're using a long shank drill, the bit doesn't walk around on the surface of the material.

I've seen people use concrete for filling in the frame. Add weight. Reduces vibration.

Strong work, sir!

impressive work.. though I would look into angular cutters (hss or carbide tipped) for any holes larger than 12mm. I wonder how ure going to heat stress relieve this (if any)? I'm also curious how ure going to mill the important surfaces without a big machine (if that's the path) as it will involve some sort of optical flat provisioning method that I haven't seen much in the DIY scene yet?

Congratulations is this your second DIY cnc leath machine ???

Perfect👍

Piękna robota, gratulacje. Trzymam kciuki żeby się udało. Sam próbowałem kiedyś uspawać łoże do miniaturowej tokarki stołowej, niestety poległem. Nie poradziłem sobie z odkształceniami. Tyle że spawacz ze mnie żaden. Moje smarki elektrodą nijak się mają do Twoich spoin :) Pozdrawiam!

Viva el chimarrón! \o/

Great, great video!

Manufactures would love to produce fabricated steel lathe beds but they dont because it doesn't work, so much stress in it from the welds means you can never get it to keep a zero.

Estás hecho un artista felicidades!!!

nice job。建议使用粗糙的大颗粒砂子与砾石，用6：4的比例混合（这个比例取决于充填材料的硬度和粗糙度），然后用环氧树脂混合后充填。最好能在金属框架的内部增加一些不规则的突起，可以改善能量传递效果。

Was that flux core welding or you just do regular mig?

No i zapowiada się ciekawa machina.
Kibicuję 👌

What is the size of the frame and what is the size of the profile pipe. Thank you.

I recommend that you relieve the stress on the metal before flattening. You can heat treat it.

When I watch such DIY machine makings, I always ask myself, as everyone knows about the problems related with stress after welding, why don't people just make it with a bolt and nut connection machine at every place and no welding at all? What will be the pros and cons of this?