Gallery, Projects and General > The Design Shop

Mill/drill stand for Warco Major mill

<< < (6/9) > >>

philf:

--- Quote from: BillTodd on August 05, 2018, 02:28:15 PM ---......I was ready to replace the awful single phase vibrator that mascarades as a motor with a proper 3ph one ......

--- End quote ---
Bill,

We had a mill/drill at work and "single phase vibrator" sums up the motor nicely. It was well enough balanced in that when you let it run down from full speed to stop with no power there was no vibration. As soon as you applied power it was terrible, the belt guards rattled violently, and it was almost impossible to get a good finish! Swapping the motor out for a "decent" 3 phase motor with a VFD would be the first job I'd do on a mill/drill. Even a 1 ph motor from a good maker would be a huge improvement.

Phil.

vtsteam:

--- Quote from: BillTodd on August 05, 2018, 02:28:15 PM ---The drill mill will do fine work ,  plenty of guys here do wonderful work on them
--- End quote ---

Now we agree.

Sorry about the bad motors mentioned, mine is fine, but it's an older Enco, and US electrical specs so again specifics, are important.

PekkaNF:
Single phase induction motor is bit like single cylinder four stroke I.C. you need an massive flywheel...problem is that this type of mill has splines between belt sheaves and spindle, you really need a 3p motor or secondary flywheel (or good fit with the spline).

RE: accuracy, rigidy, mass, stiffness and all that.....production environment is a completely different ball game. For hobbyist it pretty much tells what is the "absolute maximum rating" of the machine.

I know a person that "tested" the some machines with normal structural steels and end mills. His idea was to use same make end mill with recommended feeds/speeds and programs (on CNC) to produce commercial parts with commercial tolerances. Smallest machine (and the only manual machine) was Bridgeport. On this application bridgeport strugled on 12 mm or bigger endmill.  Can't remember how the real CNC:s were, but their productivity and and abbility to keep tolerances were magnitude better.

For most hobbyist the bridgeport (layout/size/weight/expence) is the goal or dream and we use way bigger than 12 mm endmills on them! It is just completely different ball game.

Yesterday I chucked 52 mm OD 2 mm wall pipe on milling vise and used 8 mm carbide endmill to notch it. I was using it probably 600 rpm (highest speed on my current mill) and feeds/speeds were fraction on nominal values. But I needed that radius and this was not production environment.

Anyway, I am bying cheap mill/drill that I'm paying way too much for what it is, but at this moment and on my situation it still looks like my best chance of getting something done... there are better and smaller (10x price), there are better and cheaper (5x weight/size, used), but this capacity/size/availability/price is just a compromize I had to make or I would not fit into my garage or would not move swarf.

Anyway, hope it get's shipped today and I get my hands on it and learn on next few something new....hopefully it is good enought and I don't need call it partial loss.

Pekka

WeldingRod:
Another couple of stand thoughts: get it high enough, and make it so you can roll out the cabinet!
I jacked my Rockwell up about 6" to address my 6'4" height.  Its cabinet is useless, though.  I found some ikea drawer modules, about 4' tall as 12" so square with a whole bunch of shallow drawers.  I one on each side of the column.  Super handy! I wish they still made them!!
My Hardinge is jacked up about the same amount.

Sent from my SAMSUNG-SM-G891A using Tapatalk

PekkaNF:
I thought they had lost the shipment, because last update on tracking info was 7.8 and contacted Warco Yesterday. Afetrnoon I got a call from Finnish depot that I can have it tomorow morning. Took surpricingly long time for them to process it. Hope I'll like it.

Navigation

[0] Message Index

[#] Next page

[*] Previous page