Відео

80% of this machine is steel from junkyard. Is it really that expensive in US? In Poland junk steel is around 3 times cheaper than new one.

@@SteelCraft99 yeah it’s expensive regardless of where you get it here. There may be a discount but most scrap is going to be at most 3/16 thick. I worked on the Mississippi River where we had barges of scrap, and I never once came across nice sheets like you had.

Great job with the given tools and capabilities by the way. I was attempting a concrete milling machine, but I am just going to buy one. I already spent so much just to build forms I figured it would end up with multiple failures and costs which would negate the benefits of a diy project.

Rack and pinion were bought new, they are mass produced universal parts. I think that only thing you can do with minimizing backlash in this case is to put some washer under rack to move it closer to pinion. I my milling head I have a lot of backlash on those keyways cut with anglegrinder. It's one of the things that needs improvement in this milling head.

@@SteelCraft99 thanks so much for the answer! :D

I planned to use Hammerite gray with hammered finish ... Is it very bad?😅

@@SteelCraft99 i like a hammered finish!

Exactly, next step is to mount Y axis guides, clean everything, put some filler, paint, then make control panel intall VFD etc

I bought 50 mm face mill BUT millling head was mounted on 120mm wide square tube , and spindle was 420 mm from point of mounting. It wasn't rigid enough for such a big tool. Fly cutter probably would work because of low tool pressure. Guides of table movement will be scraped later. Spindle is chinese z4132 (there are 2 options - mill type with bore thru and drill type without bore, very cheap) , I only used custom spindle sleeve to match with diameter of hydraulic cylinder.

Mniej więcej między Radomiem a Kozienicami

@@SteelCraft99 super! Pozdrawiam!!!

Absolutely agree!

Гугл транслейт не помог. Не могли бы вы описать как-нибудь по-другому, чего не хватает во фрезерном станке?

Добрый день я вам вчера написал большой кусок текста , он почему то отсутствует . Я вас неправильно информировал , шплинт не правильно , правильно штифт .

В двух деталях скрученных болтами делают отверстие сверлом , а потом разверткой , и ставят конический или цилиндрический штифт . Для исключения сдвига , этих деталей .

Cпасибо за ответ, теперь я знаю, что это такое. Несмотря на винты, элементы перед перемещением фиксируются точечной сваркой. Это самое простое решение, позволяющее исправить, если что-то окажется не так.

@@SteelCraft99 да это тоже вполне рабочий вариант , но его разбирать сложней , например для шабрения . Иногда сваривают внутри специального отверстия , если нет свободных мест . Очень серьезно вы подошли к постройке этого станка . Мое уважение .

гидроцилиндр подъема от трактора Ursus C330

Thanks, Quality improves with every next episode

We will see after final assembly ;)

Hi I based my project on "technical and operational documentation" maintenance manual. I just googled it. Link to example: www.truetex.com/bridgeport-manual.pdf Knowing some dimensions I just measured other from computer screen and scaled it. Not the best solution but worked for me. This project is not 1:1 copy. I simplified it to my needs.

Thank you! Will your next video be the last in the series on building a milling machine? I'm looking forward to the first chip! In your videos you use thick sheet steel as the surface plate, I understand this is steel annealed from a surface grinder? Have you measured the geometry of this sheet, how much it has moved over time, because steel behaves more strongly than cast iron?

I planned 2 more videos about mechanical part of this project, just to keep order and not mix content. Then series will go to electrical part - installing all electronics, DRO, VFD, power feed, coolant pomp etc - probably couple more episodes. I found some issues that needs to be fixed this will be also extra episode. During this project I used two steel plates as surface plate. First one was during scraping Z axis guides. It was a table from woodworking machine, never measured geometry of this plate. Second plate was this one used in saddle of the table - this one was surface grinded to flatness. I checked Z axis with this smaller too. There was absolutely no "rocking" anywhere so I assumed that this first plate was flat enough too. Professional surface plate of this size costs as much as this whole project and I'm a little bit limited by my budget ;) I'm aware of steel creep over time. Cast iron is usually seasoned couple years before machining. I did a lot of welding. Probably whole machine will need to be scraped again after couple years.

Thanks for the detailed answers. I’m looking forward to the next videos😊 I agree, a surface plate is very expensive if it’s new or used and repaired to new condition, but sometimes you can buy surface plates for restoration from private individuals or even at a scrap metal collection point, at least that’s the case here in Russia . The simplest option restoration - will turn to surface grinding machine, but I don’t know how stable the cast iron will be after grinding, because the surface experiences heat and stress in the metal during grinding. Nowadays, many people practice just this option of restoring surface plates, but, unfortunately, no one conducts tests for the stability of the geometry of the surface of a surface plates restored in this way. There is only one problem with self-restoration of surface plates by scraping - you need three surface plates of the same size at once to get one, or rather, in the end there will be three of them, but only one will be needed 😂

Yes, it’s good that all welded parts need to be annealed, but in your case I can’t imagine the size of the fire capable of this. Moreover, how much The behavior of the geometry of welded parts after annealing is also not clear. I heard somewhere that stress in the metal after welding can be removed using vibration with a vibrating motor

Thanks! Which parts would you sand cast?

Nah 😂

Nie mam jakiś szczególnych źródełek. Dwa pobliskie złomowiska + hurtownia + olx

Podpatrzone w chinskich odpowiednikach

A very significant reason - there was only table lying and nothing more ;) I have to make 2 sets of guides to finish mechanical part of my project, so even if there was whole machine I wouldn't take it.

@@SteelCraft99 It must have been meant to be then. A mill table is a strange thing to find by itself. But hey take what you can get.

Kорпус изготовлен из чугуна. Это гидроцилиндр подъема от трактора Ursus C330.

@@SteelCraft99 спасибо

For this type of "test run" nothing bad gonna happen. I think it's good to know how much resistant have movable parts

@@SteelCraft99 fair enough...but _any_ wear is bad wear, imo.

He knows what he's doing but I'm curious why he's doing it.