SIEG X2.7 Mini Mill - Setup and first use
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- Опубликовано: 8 сен 2024
- Welcome back to Doobrey's day!
Today on Doobrey's day we setup our new mini mill, the SIEG 2.7sx! We use this to level out some of our damascus using the shell mill attachment. Pretty cool device.
Hope you find this useful!
Thanks for watching,
Doobs!
Place to buy the mill from - www.arceurotra...
Do not use the quill for spindle positioning. It is used for drilling and micro-feed along the vertical axis. The handle at the top of the column should lower the spindle as close to the surface of the part as possible.
As a city & guilds trained fitter/ machinist now retired, some tips for you. Remove all jewelry including your ring when using machinery. Get yourself a soft paint brush for cleaning away swarf, use two vices on a long bar, you had too much overhang out of the vice hence chatter and vibration, your cutter speed was too fast and use some coolant.,feeds and speeds are not randomly guessed unless you are very experienced. There are books to teach you how to calculate feeds and speeds, always wear safety glasses or goggles as you did, never operate without. And finally get yourself a pen and notpad and write out your process of operations before starting, easier to make a mistake on paper than ruin your job. Good luck.
Really must use two vices, one either end to stop any chatter and/or movement. I have an Amadeal milling machine, (almost identical), and always use 2 vices where possible. So much safer, and use a little coolant if possible. Also please be careful of the cutting direction. You have conventional milling and climb milling even on these types of mills. Climb milling not good as it will try to pull the work piece through!
Superb? I think not so much... I agree with Mexmanix1948: use two vices or at least support the workpiece at the ends. A micrometer to check and adjust the surface before milling would be a good option... Use some cooling medium, or your carbide tips will not last long... And finally: engage the X-axis feeding (if you see some sparks, you are too fast) - not cranking by hand! then you may evenually have a SUPERB result! happy milling!
it hasnt got auto feed
Nice video, but I think you need to look at speeds and feeds for your tooling, a 65mm face mill should be about 150-200RPM not 1200RPM, and if the cutter starts making sparks, then you know you are defiantly doing something wrong :(
Formula for RPM is 4 x the cutting speed (for steel 100 feet per min) divided by the diameter of the cutter . So 400 ÷ 2.5 inch = 160 rpm , that's for HSS, now double it for that tungsten carbide tipped cutter 320 rpm not 1200. In the Lathe, dia of work piece instead of cutter. This is a very basic formula for bigger diameter cutters
@@peterjackson6706 it was the OP of the video who suggested 1200RPM, my suggestion of 150-200 RPM is from my experience of running these machines, as even with carbide tips they struggle with the 320RPM like you calculated.
@@peterjackson6706you can throw all that out the window when using mini mills and lathes. Those formulas are based on industrial quality machines not hobby grade machines.
That looks like a lot of fun (dont forget the goggles):D, have seen a guy I got a knife from use one to taper tangs on them too...I think.
Hell yeah! Always wear the old goggles. Hope you are well Bobby ?!?
@@Doobrey all good here, hope you are doing well too. Claire sends her love. Need to catch up on a couple of your vids, they werent showing up with the bell thingy for some reason.
Hi Doobrey NIce machine. Just a couple of bits of advice for the future; on a length of bar as you have there I would suggest you use a couple of small machinists jacke to support the ends, they will tend to ever so slightly dip at the ends so will not be exactly parallel all along the length of the bar if you are looking at precise machining. get yourself a set of parallels as the piece you have under the bar, looked like a clamping block from a set, will not be parallel, plus you've got to take into account 'Jaw lift 'of the vice even though it looks a decent one there 'will be some jaw lift' which will throw any work out of square to the vice. PM me if you want any more help. cheers.
Thank you!!!!
How did you get the underside of your bar parallel to the table. If the top is not "flat," why is the underside flat?
Great video but I was curious where you ended up purchasing this mill from. I've looked online and no one really seems to list it. There are some clones but I was hoping you could point me to a retailer of some type.
Arceurotrade!!
It’s on eBay but it’s $1868! (Australian). How much did you pay?
Hello, Do you have the reference number of the shell mill at arceurotrade? Thanks
Hi sorry not off the top of my head. If you phone them, they will tell you exactly the mill bit
Carbide tips
Do you have a link to the cutting head you used please :)
Yeah, I can get it tomorrow for you.
@@Doobrey many thanks. Did you find it worked ok ? I’m a total newbie 🙄
Still trying to find the exact link for the shell mill. Bear with me!!!
It worked remarkably well!!
@@Doobrey Yes it did but the cutter wont last long at that speed, try 300 to 400 rpm , vibration / chatter is the limiting factor on all milling machines big or small, by changing speeds and feeds, until you get the best result. The intermittent cutting action of all milling cutters is the cause of all vibration / chatter . A Lathe has a smooth continuous cutting action and a much faster metal removal rate.
It's not a good idea to mill with the quill extended.
Is it some sort of 'Rule' on You Tube that they forbid anyone cutting or milling or drilling any type of steel from using any cutting fluid?