Author Topic: Gearing up (Read 12130 times)

tel · « **on:** August 23, 2012, 09:11:00 AM »

... for my next project, seeing that spring is just (more or less) around the corner. Been beetling away every spare moment for the last few days on these. They are 40 dp, and, yes, they are a set of change wheels - but for what?

swilliams · « **Reply #1 on:** August 23, 2012, 09:31:00 AM »

Quote from: tel on August 23, 2012, 09:11:00 AM

They are 40 dp, and, yes, they are a set of change wheels - but for what?

How about a hobbing machine? Well I hope you're going to build a hobbing machine, I'd like to see that.

Steve

tel · « **Reply #2 on:** August 23, 2012, 09:36:44 AM »

Nope, not a hobbing machine - tho one of those has its attractions as well. Maybe later.

arnoldb · « **Reply #3 on:** August 23, 2012, 09:54:25 AM »

Hmmm... 40dp... Too small for a QC Box for the Myford then...

Great set of gears

At least it sounds like you blokes are also starting to thaw a bit now

Kind regards, Arnold

swilliams · « **Reply #4 on:** August 23, 2012, 10:30:46 AM »

Quote from: tel on August 14, 2012, 01:12:56 AM

Don't have any 48dp cutters but I suspect that 30/15 in 40dp would work out to the same dims - those cutters I have.

So after making those you decided why not make a mini screwcutting lathe?

Steve

gmac · « **Reply #5 on:** August 23, 2012, 11:10:51 AM »

.... the threading conversion for my Taig lathe......I can dream can't I Tel

Cheers Garry

tel · « **Reply #6 on:** August 23, 2012, 11:16:03 AM »

Nope, and nope! Although the device will have some lathe like features.

Haven't done those 30/15's yet - haven't got the drawing, have I

steamer · « **Reply #7 on:** August 23, 2012, 11:40:49 AM »

Small universal dividing head....geared off the mill table?

Dave

tel · « **Reply #8 on:** August 23, 2012, 11:52:47 AM »

Maryak · « **Reply #9 on:** August 23, 2012, 12:04:10 PM »

Nice gears tel

Speaking of gears and such what's the state of play with your mates tractor?

Quote from: arnoldb on August 23, 2012, 09:54:25 AM

At least it sounds like you blokes are also starting to thaw a bit now

Kind regards, Arnold

Don't you believe it, we've had gale force winds, strong rain, hail and that's just our place, not to mention snow in the foothills today with more to come tomorrow. Thank goodness for central heating but soon I'll be lamenting the cost of gas.

Best Regards
Bob

steamer · « **Reply #10 on:** August 23, 2012, 12:10:35 PM »

Dropbar removal tool?....gear driven...of course.

steamer · « **Reply #11 on:** August 23, 2012, 12:17:28 PM »

Quote from: Maryak on August 23, 2012, 12:04:10 PM

Nice gears tel

Speaking of gears and such what's the state of play with your mates tractor?

Quote from: arnoldb on August 23, 2012, 09:54:25 AM
At least it sounds like you blokes are also starting to thaw a bit now

Kind regards, Arnold

Don't you believe it, we've had gale force winds, strong rain, hail and that's just our place, not to mention snow in the foothills today with more to come tomorrow. Thank goodness for central heating but soon I'll be lamenting the cost of gas.

Best Regards
Bob

Yes a tractor update would be in order...........traverse carriage gears for a anti-dropbar gun....just traverse gears...not elevation....that takes more....

Jo · « **Reply #12 on:** August 23, 2012, 12:30:18 PM »

I have a similair stash of gear that I am using to select the appropriate gearing down for my Clayton steam lorry.

The rest of them are still spare, so if you have a good idea

what I could use them for.

Jo

tel · « **Reply #13 on:** August 23, 2012, 09:34:30 PM »

Bob - the (second hand) axle got here yesterday, finally located one in Brisbane. Looks to be in good nick but I haven't had a chance to give it a thorough going over yet. Been held up with it because the MF65's had two different axles over the course of manufacture and we had to be sure of getting the correct one.

Dave, dunno about 'thaw' but we are marginally less frozen - apart from the wild storms, AND there are even a couple of daffys out in my yard, that's gotta be a good sign. Drop b'ars are still hibernating tho - no need for the HA yet!

You can never have too many gears on hand Jo, especially if you twiget around with workshop equipment.

A clue - this non lathe gadget, if it pans out OK, will be for making certain components for IC engines.

Dan Rowe · « **Reply #14 on:** August 23, 2012, 09:42:19 PM »

IC engine? Cam grinder is my guess.

Dan

tel · « **Reply #15 on:** August 23, 2012, 09:43:13 PM »

Nope

steamer · « **Reply #16 on:** August 23, 2012, 10:32:22 PM »

OK I give.....

tel · « **Reply #17 on:** August 23, 2012, 11:51:59 PM »

heh, heh, heh.

Dan Rowe · « **Reply #18 on:** August 24, 2012, 12:12:43 AM »

A shaper gear generator?
http://myweb.tiscali.co.uk/remark/pages/workshop/projects/geochuck1.html

Dan

tel · « **Reply #19 on:** August 24, 2012, 01:52:01 AM »

Nope. But here's another clue - given that the 'leadscrew' will be 32tpi.

steamer · « **Reply #20 on:** August 24, 2012, 01:59:51 AM »

OK 15 turns of the spindle to 1 turn of the 32 tpi leadscrew

or about .032/15 = .0021"/ rev

Looks like a change gear banjo to me....but it's not a lathe

spiral milling attachment? Are you going to cut helical gears on your mill?

Dave

swilliams · « **Reply #21 on:** August 24, 2012, 02:07:30 AM »

Or 15 turns of the leadscrew to 1 turn of the spindle? That sounds like something in the range to make skew gears for an oil pump or such?

Steve

ozzie46 · « **Reply #22 on:** August 24, 2012, 02:15:30 AM »

Cam Grinder??

Ron

Dan Rowe · « **Reply #23 on:** August 24, 2012, 02:20:34 AM »

Ron see reply #14 & answer reply #15.

Dan

Pete49 · « **Reply #24 on:** August 24, 2012, 04:21:07 AM »

back gears?
Pete

tel · « **Reply #25 on:** August 24, 2012, 08:22:39 AM »

Yeah, they are back gears Pete - that was a given in the first post!

lescad · « **Reply #26 on:** August 24, 2012, 10:41:15 AM »

Coil winder?

Les

steamer · « **Reply #27 on:** August 24, 2012, 11:18:59 AM »

I think you got it Les.......

Dave

tel · « **Reply #28 on:** August 24, 2012, 11:32:11 AM »

BINGO!

I thought the

would give it away!

swilliams · « **Reply #29 on:** August 24, 2012, 12:34:04 PM »

So Tel - the next quenstion. Will your contraption offer any tangible advantage over winding a coil on the lathe? Is it that you just want to build your own coil winding machine? Or you'd rather have a one purpose machine you don't have to set up when you want to wind a coil? Just curious!

Steve

P.S. Come to think of it the project will allow alot of gratuitous use of the

emoticon. That's gotta be enough justification

tel · « **Reply #30 on:** August 24, 2012, 09:26:41 PM »

Yeah Steve, apart from wanting to do one I figure a stand alone machine for the purpose is better than tying up the lathe - and it's not all that simple to get down to the 0.002 feed for the secondary wire with the 8tpi Myford lead screw. Lots of

to come!

Stuart · « **Reply #31 on:** August 25, 2012, 08:40:01 AM »

when I did my apprenticeship we had to do a year or so armature and stator winding

all we used for coils/transformers was a dc motor with right angle gearbox fitter with a mechanical rev counter and controlled with a foot switch

we wound from very small to dc coils that were 70 pounds finished ( we did not count the turns on those but wound until we had used 70 pound of wire )

for the interleave insulation we uses Bronco toilet paper nice and thin very shiny

with shellac for the varnish

small armatures were hand wound although we did have a machine for them it took longer to set up for a one off ( government job ) than to do it by hand

good luck Tel hope you can control the wire tension with your machine

Stuart

tel · « **Reply #32 on:** August 25, 2012, 09:03:32 AM »

Thanks Stuart, yeah, I think I have the wire tensioning under control (when I get that far) I've built a number of slow lathes for doing the bindings on fishing rods, a not dissimilar operation, only a lot less coils, and the tension on the binding thread was a bit critical with those as well.

I am (very) loosely basing this machine on Bob Shore's 'Sidewinder' only with a full, Myford style, change wheel set up - very much a matter of cut and try but it all should work out OK.

steamer · « **Reply #33 on:** August 27, 2012, 03:43:03 PM »

OK ....so when are we seeing the rest of it?......

tel · « **Reply #34 on:** August 27, 2012, 10:04:59 PM »

Early days yet Dave - another FBF here this morning (-8?C) so there will be no getting to the workshop until lunchtime, at least. Makes for very short days and frustrating lack of progress.

Don1966 · « **Reply #35 on:** August 27, 2012, 11:01:05 PM »

Tel I will be following you on this built. I have Bob Shores book and was contemplating on making one to wound ignition coils. I will be following with interest.

Don

Maryak · « **Reply #36 on:** August 28, 2012, 12:26:36 AM »

I have a friend who is a keen fisherman and makes his own rods etc.

He asked me about a winder for rod bindings

After a bit of thought, I obtained a second hand sewing machine and with the removal of the unwanted bits I got it to the point where a 3 jaw chuck was fitted to the head. A long piece of water pipe with adjustable steadies was added to support the rod.

The foot control gave him fully variable speed for winding and both hands free for controlling the bindings.

He is very happy with the result

I have never wound an electric motor so I don't know if this idea has any merit in that environment.

Just maybe food for thought.

Best Regards
Bob

tel · « **Reply #37 on:** August 28, 2012, 02:53:10 AM »

I based mine on windscreen wiper motors Bob, with an additional external gear reduction - with the two speeds on these things I think, from memory, the output was 35 and 25 rpm - plenty slow enough for good hand control. I've still got one here - I'll have to find it out and dust it off ....

Thanks Don - don't plan on blow by blow coverage of this - just the occasional update as I get the various bits done.

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Author Topic: Gearing up (Read 12130 times)