Slow Down

[ocharry]

hello all,,,,new here

just need a little help,,,advice from you all

i recently got my hands on a singer 111w152,,,, it had been in storage for a long time but looked surprisingly good paint and decals,,, wow,,, almost new

took it apart and cleaned and oiled,,set tension,,new needle and bobbin,,,, VROOM,,,like it was just used yesterday,,,,very happy

BUT i need to slow it down,,,i changed the drive pulley down to 1 3/4" helped a lot but i need it to go some slower

i like the clutch and power,,,just to fast for what i want to do

any suggestions???

i have read where the servo stuff don't have it down at low speed,,,i need the punch

have looked at the jack shaft pulley thing but that really hangs the motor down low,,,,(in the way maybe)

there has to be a way to get the speed down,,,,some things its ok,,,straight lines great,,,,staying on a curved line where i went it to be,,,not so great,,,,,and maybe that is just an experience thing that will come with time,,,but for now i need to slow it down

always did leather sewing by hand before,,,seems the older i get the harder it is becoming,,,so this machine will make it easier

thx for any input

ocharry

[Wizcrafts]

You can buy a 3:1 speed reducer setup and new belts to match. You'll have some cipherin' to do to install it next to the slot on the underside of the table and two new v-belts to go from the motor to the reducer's big pulley and from its small pulley to the machine. I am afraid that by the time you run a reducer from your small pulley on the motor, that the machine will only turn over at about 1/2 stitch per second, pedal to the metal. You will be there all day if you have to sew around a long belt or strap.

[ocharry]

Thx wizcraft,,,, I think this machin orignaly was running at about 2200 spm,,,, and I think with the smaller pulley I put on the motor it is around 1100 I think about half

I would like for it to be in the 5-600 spm,,, lol,,,, for now anyway,,,,, seems like when I get it to moving it just takes off ,,,, makes a beautiful tight stitch, ,,, just happens to fast for me right now,,,,, lol,,,, maybe later I will need the speed

thx

ocharry

[Wizcrafts]

My bad. I forgot that your motor always spins at 1725 rpm.

So, you've pulley'd it down to 1100 rpm at the machine. A 3:1 reducer will bring that down to about 400 spm, which is about 6 per second. You should be able to feather the clutch to 1 per second. If there is any problem doing that, replace the brake on the motor. After the burn-in period it should let you feather it with ease.

Edited December 22, 2015 by Wizcrafts

[dikman]

Your other option is to remove the handwheel and replace it with a larger pulley - 8" or even 10"! The shaft is 1/2", I think. You would need a longer belt and may need to open out the slot in the table that the belt goes through, but that will slow it down and still give you lots of grunt.

[ocharry]

thanks guys,,,

i am learning how to feather this thing some and it is helping but it is kinda fine,,,when i give it the pedal to get going it takes off and when i back off it stops,,,lol,,,kinda touchy ,,,,, i am sewing leather with it,, when i run it empty it is easy to control,,lol,,,but when i make the punch at start it is gone like a rabbit,,,,could be just a learning curve i will have to over come,,,,it is a sewing mother though i will say that

dikman,,,, i was looking at that last night when i got done sewing with it,,,it has a 3 1/4" pulley on the drive shaft and i think i could go 4.5-5" without any trouble or changing much and that might give me a couple hundred less rpm at the needle

thx

ocharry

[dikman]

Go for the biggest you think you can fit, it all helps. I fitted an 8", along with a servo fitted with a 1 3/4", to try and control my Pfaff!

[Wizcrafts]

I dunno about y'all. I learned to drive in a clutch car, where one has to feather the clutch to get going smoothly. I had a couple of clutch cars of my own. This easily carried over when I started using industrial sewing machines, around mid 1984. I can't be the only person doing leathercraft that learned to feather a clutch.

My latest acquisition is a 1926 Singer 42-5, with a clutch motor. I set the free play where I wanted it and can easily feather it to 1 stitch per second.

[Gump]

Sometimes a clutch will get sticky and grab erratically and not slip as you would like. To fix this I run the motor up to speed, hold the machine pulley tight, turn the motor off and stamp the pedal down until the motor stops. This glazes the clutch and allows it to slip more smoothly. This works well for me doing it just once, but it depends on the condition of your clutch.

Edited December 24, 2015 by Gump

[paprhangr]

when I first got my Consew 206 with a clutch, it took me some time to get control but now I can go as slow or fast as I want.

my start point is pushing the pedal just enough to hear the motor anf feel it wants to go, then push a little more GO.

(pop the clutch in the VW beetle)