Gunsmith Lathe with DRO

[LVLAaron]

Can it do 13tpi without swapping change gears?

 

[shortgrass]

Can it do 13tpi without swapping change gears?

Looks like B 7 will make 13tpi

 

[WSnyder]

Can it do 13tpi without swapping change gears?

Per the plate and manual 13 TPI looks like it's directly selectable.

Metric threading and the thread dial per the manual. Half nuts must be left engaged when threading metric.

Std Modern 1334 manual.

https://standardmodernlathes.com/docs/manuals/standard-modern-1120-1334-manual.pdf

 

[LVLAaron]

In that case, I love it.

 

[LVLAaron]

Looks like B 7 will make 13tpi

My machine looks like it'll do 13 TPI as well... but it requires a gear change

 

[urbanrifleman]

The DRO is not configured. Ugh. So, there is that!!

I am still trying to figure out how to shift the threading gears also. It's not happy running or not running. I think maybe it might like being in neutral between inch and metric.

 

[urbanrifleman]

Per the plate and manual 13 TPI looks like it's directly selectable.
View attachment 1381193View attachment 1381195
Metric threading and the thread dial per the manual. Half nuts must be left engaged when threading metric.
View attachment 1381196
Std Modern 1334 manual.

https://standardmodernlathes.com/docs/manuals/standard-modern-1120-1334-manual.pdf

I did not notice that!!! That's actually pretty cool.

 

[dnellans]

Per the plate and manual 13 TPI looks like it's directly selectable.
View attachment 1381193View attachment 1381195
Metric threading and the thread dial per the manual. Half nuts must be left engaged when threading metric.
View attachment 1381196
Std Modern 1334 manual.

https://standardmodernlathes.com/docs/manuals/standard-modern-1120-1334-manual.pdf

ugh - i’d rather spend the 5 minutes flipping a gear

 

[Dusty Stevens]

South bend will thread the very american1/2-13

 

[shortgrass]

My machine looks like it'll do 13 TPI as well... but it requires a gear change

what's the deal? you gotta' metric lead screw?

 

[LVLAaron]

what's the deal? you gotta' metric lead screw?

Nope. Pm1440gt. Inch lead screw. Can cut anything except 13.

 

[V35]

I guess the PM1440GT has a 4 tpi screw then. My 1340GT has the 8 tpi and will cut 13 tpi, but not 11.5, which I had to make a change gear for.

 

[LVLAaron]

It does

 

[xr650rRider]

You must have a strange PM-1440GT. Most have a 8 TPI leadscrew, same as PM-1340GT.

My PM-1340GT does 11.5 and 13 with a button press.

 

[LVLAaron]

It is 8 TPI, my bad. Either way, requires gear change for 13tpi

 

[LVLAaron]

You got the clough42 electronic lead screw?

 

[xr650rRider]

You got the clough42 electronic lead screw?

Yes

 

[Walt Krafft]

My ideal tool room lathe would have variable freqency drive, no gearbox, electronic lead screw/threading, 13x40 bed, 16C collet ready spindle, A2-5 chuck mount, spindle 15 inches or less long, 4-5000 lbs weight. Scale resolution to tenths on both axis. Digital readout on the tailstock quill. Coolant system. Build it and I will buy it.

 

[urbanrifleman]

My ideal tool room lathe would have variable freqency drive, no gearbox, electronic lead screw/threading, 13x40 bed, 16C collet ready spindle, A2-5 chuck mount, spindle 15 inches or less long, 4-5000 lbs weight. Scale resolution to tenths on both axis. Digital readout on the tailstock quill. Coolant system. Build it and I will buy it.

That will be one miiiillliiionn dolllaarrssss...

 

[LVLAaron]

My ideal tool room lathe would have variable freqency drive, no gearbox, electronic lead screw/threading, 13x40 bed, 16C collet ready spindle, A2-5 chuck mount, spindle 15 inches or less long, 4-5000 lbs weight. Scale resolution to tenths on both axis. Digital readout on the tailstock quill. Coolant system. Build it and I will buy it.

With current DC motor tech.... a direct drive system is not totally out of the question.... and it could be super quiet.