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aboard_epsilon
02-02-2012, 09:48 AM
got some things to id
the first is some sort of adjustable motor mount .. its about 10 inches x 8 inches

http://img.photobucket.com/albums/v190/aboard_epsilon/P1010127.jpg

view from underneath ..it's a very presice mechanism that moves it over 1/8 of and inch for 2 inches travel of lead screw ...feels very well made.

http://img.photobucket.com/albums/v190/aboard_epsilon/P1010131.jpg

Second item is some type of motor ..stepper maybe ..
no markings or id on it ..theee pins on the plug..but only two wires come out of the plug ..no idea what voltage ..nothing its about 2 x4 x 3 inches

http://img.photobucket.com/albums/v190/aboard_epsilon/P1010133-1.jpg

http://img.photobucket.com/albums/v190/aboard_epsilon/P1010134.jpg


sugestions for alternative possible uses welcome

all the best..markj

topct
02-02-2012, 10:16 AM
The small motor thing looks like the headstock for a small lathe. Meant to plug into a power supply. The three prong plug is for keeping polarity correct.

john hobdeclipe
02-02-2012, 10:50 AM
What does the tag on the green thing say?

Arcane
02-02-2012, 10:51 AM
I'd hazard a guess that the first item is used to give variable speed with a constant speed electric motor. Motor pulley is spring loaded on one side so as the tension knob is tightened or loosened the center to center of the drive and driven pulleys changes and the one half of the pulley can move in and out against spring tension giving a variable diameter pulley. The angle of the slides should match the angle of the pulley so the V belt is kept in alignment.

http://www1.mscdirect.com/CategoryAttributes/3542000-22.jpg

http://torquetrans.com/pulleys/variable-speed-pulleys/images/variable-speed-pulley-ills.gif

aboard_epsilon
02-02-2012, 11:01 AM
Arcane ..youre probably right

mini lathe

had a look

and this is the closest

http://www.lathes.co.uk/emco/page21.html


http://hobby.uk.com/power-tools/unimat-1/power-line/power-drive-unit.html

all the best.markj

aboard_epsilon
02-03-2012, 08:00 AM
Do you know what the worst thing is .

i paid a 1 for that motor drive unit

I now realise, that i picked up and examined the rest of the lathe...which was in its component form ..just looked like bits of plastic extrusions to me ..spread out in other areas of the car boot stall....no way did it look like a lathe to me :o

2 weeks ago ./..will be very lucky if the guy turns up this Sunday ..and he still has the other bits and peices....crossing fingers.

all the best..markj

sasquatch
02-03-2012, 08:23 AM
That green mounting base is a nicely made unit!!

Thanks for posting these very interesting objects.

we need a "What the Heck Is this" thread.:D

Ian B
02-03-2012, 09:02 AM
Mark,

I had one of those Unimat lathes in my hands a few years back, it was brand new. And about the nastiest thing I've ever come across. Plastic slides that jump & jerk, handles too tiny to wind - really, I couldn't think of a single use for it. I tried checking for burrs / plastic casting flashes, lubricated it, tried adjusting the slides, waste of time.

Too insensitive for anything small and accurate, too sloppy for anything bigger. The bed, headstock & cross slides slip out of alignment, hopeless. Probably best used for gathering dust on a shelf somewhere.

If you meet the guy again, give him the headstock back...

Ian

aboard_epsilon
02-03-2012, 11:04 AM
if i can find the rest of it ..it will fetch a kings Ransom on ebay ..that's what I'm thinking ......well......... should get at least 50 for it . :)

all the best.markj

Timleech
02-03-2012, 02:09 PM
Would the headstock be any good as a toolpost-mounted milling attachment for a real lathe? on the lines of the 'Quickstep'? Or is it too flimsy even for that?

Tim

aboard_epsilon
02-03-2012, 02:16 PM
The motor is quite stout ..the black bit on it...that looks like plastic isnt ..it is thick alluminium.

Technical Specifications:

Voltage - 12 Volt.
12 Amps Max.
66 Watts Max
Built in Ventilator
Normal Speed 12.800 rpm
Motor Cover made of Zinc Diecasting and is a Split Shape for Easy Maintenance
Ball Bearings are Sealed Pressure Lubricated Industry Ball Bearings - Maintenance free.
Gearbelt is 8mm thick, Glass Fibre Reinforced.
Motor Housing Continuous Cast, Anodized Aluminium.
Gearwheels Transmission Ratio 4.8 / Spindle Speed 2.666 rpmhmm collet hold 1.15 and assorted collets 8

quite cheap

Timleech
02-03-2012, 06:00 PM
The motor is quite stout ..the black bit on it...that looks like plastic isnt ..it is thick alluminium.

Technical Specifications:

Voltage - 12 Volt.
12 Amps Max.
66 Watts Max
Built in Ventilator
Normal Speed 12.800 rpm
Motor Cover made of Zinc Diecasting and is a Split Shape for Easy Maintenance
Ball Bearings are Sealed Pressure Lubricated Industry Ball Bearings - Maintenance free.
Gearbelt is 8mm thick, Glass Fibre Reinforced.
Motor Housing Continuous Cast, Anodized Aluminium.
Gearwheels Transmission Ratio 4.8 / Spindle Speed 2.666 rpmhmm collet hold 1.15 and assorted collets 8

quite cheap

That 66 Watts might be the stumbling block, you wouldn't cut much metal with that. Maybe tiny endmills would be OK.

Tim

topct
02-03-2012, 06:45 PM
If it was kept within it's limits it would work just fine.

aboard_epsilon
02-03-2012, 07:13 PM
Just had a peep inside ..has the same motor as battery drill

all the best.markj

Evan
02-03-2012, 07:46 PM
I had one of those Unimat lathes in my hands a few years back, it was brand new.

Are you sure it was a Unimat? I have a very old one, the DB200, and it is a very nice little machine when used within its limitations.

This is it with a 1/2 hp variable speed DC motor transplant. :D

http://ixian.ca/pics9/unimotor1.jpg

It turns steel using a carbide bit quite nicely.

http://ixian.ca/pics9/unimotor4.jpg

aboard_epsilon
02-03-2012, 07:49 PM
when i looked around ..your design is what i found Evan ..they have since moved on ..they now build them out of lego

all the best...markj

John Stevenson
02-03-2012, 07:53 PM
I have one of the Chinese copies the Sieg C0 lathe.
Bit gutless as like Evan I have done a motor transplant.

Instead of swapping the motor I fitted a shaft into the headstock spindle and drove it off the big TOS

http://www.stevenson-engineers.co.uk/files/C0_1.jpg

Far better with 10 Hp on tap :D

sasquatch
02-03-2012, 08:42 PM
Clever idea John,, BUt that would be a major "CRASH" if one got distracted!!:D :eek: :eek:

Ian B
02-04-2012, 02:39 AM
Evan, John,

No, the thing that I had was exactly as mark posted: http://www.lathes.co.uk/emco/page21.html

light alloy box sections with plastic end caps. The stickers contributed to the structural rigidity I think.

They come up on Ebay, here's one right now: http://www.ebay.co.uk/itm/UNIMAT-1-Classic-Benchtop-6-1-Milling-Machine-Lathe-Jigsaw-Sander-Drill-/260946155469?pt=UK_Home_Garden_PowerTools_SM&hash=item3cc19a57cd

This one shows the jigsaw attachment - handy for cutting cling film to size.

The concept looks great - rebuild it as a lathe, drill, vertical or horizontal miller etc. But in reality, unless you just want to 'machine' bits of 1/4" diameter plastic, it isn't going to get you far. Jerky slides, constantly 'self-adjusting' components, sorry - it's a toy.

ian

aboard_epsilon
02-04-2012, 01:59 PM
Evan, John,

No, the thing that I had was exactly as mark posted: http://www.lathes.co.uk/emco/page21.html

light alloy box sections with plastic end caps. The stickers contributed to the structural rigidity I think.

They come up on Ebay, here's one right now: http://www.ebay.co.uk/itm/UNIMAT-1-Classic-Benchtop-6-1-Milling-Machine-Lathe-Jigsaw-Sander-Drill-/260946155469?pt=UK_Home_Garden_PowerTools_SM&hash=item3cc19a57cd

This one shows the jigsaw attachment - handy for cutting cling film to size.

The concept looks great - rebuild it as a lathe, drill, vertical or horizontal miller etc. But in reality, unless you just want to 'machine' bits of 1/4" diameter plastic, it isn't going to get you far. Jerky slides, constantly 'self-adjusting' components, sorry - it's a toy.

ian

hmm the one on ebay is the crap one ..

but they also do this "all metal" one

http://hobby.uk.com/power-tools/unimat-1/metal-line-ready-built-lathe.html

is this the one you had

http://www.youtube.com/watch?v=sJBzHQjcIy8

all the best..markj

Ian B
02-05-2012, 07:09 AM
Mark,

The one I had was exactly the ebay crap one - same colour scheme, stickers - everything. All dovetailed slideways were plastic, only the feedscrews were metal.

The 'bed' sections were aluminium extrusions. One of the major weaknesses (apart from the slides being plastic) was the method of joining all the various bits together; they provided what look like mini H beams (plastic again) to slip into and join two facing tee slots. The mini H beams were then tightened with a crosshead screw, pulling the faces together. The only thing stopping the 2 pieces moving was friction, as the mini H beams were loose fits.

I hadn't seen the version with more metal bits - it probably works a bit better than the one I had, but it's still going to be an order of magnitude worse than the lovely little Unimat that Evan's picture showed.

Ian