13x40 Asian lathe ID parts source? HELP!

[LuJon]

If anyone happens to have the compound off their g4003 and can compare these are the measurements I'm trying to validate.

Outer ring max dia to outside edge of mounting slot is 4.17" (105.5mm) inside edge is 3.39" (86mm) dia. Slot is .38" (10mm) wide. And the inside hole is 1.57" (40mm).

Sent from my SM-N950U using Tapatalk

 

[NortonDommi]

A while back I actually purchased the upper 1/2 of the cross slide for like $126 from grizzly and while it fits the dovetail it is offset so the axis of rotation would be off. The complete compound assembly is $460 shipped but out of stock. I'd place an order for it but I'm not sure if the bolt pattern will fit where it is screwed down to the cross slide.

Here is the Grizzly upper 1/2 of the slide fitted to my lower 1/2.

Sent from my SM-N950U using Tapatalk

Will it fit the other way around? I second Nogoingback to get going.

 

[Mitch Alsup]

If anyone happens to have the compound off their g4003 and can compare these are the measurements I'm trying to validate.

I will measure tomorrow.

 

[Cadillac]

A while back I actually purchased the upper 1/2 of the cross slide for like $126 from grizzly and while it fits the dovetail it is offset so the axis of rotation would be off. The complete compound assembly is $460 shipped but out of stock. I'd place an order for it but I'm not sure if the bolt pattern will fit where it is screwed down to the cross slide.

Here is the Grizzly upper 1/2 of the slide fitted to my lower 1/2.

Sent from my SM-N950U using Tapatalk

I second trying to flip that top slide around. Reason being your second picture shows it matted backwards. The TSlot should be on the longside of the mounting bolt pattern. You show it on the short side.

 

[Mitch Alsup]

If anyone happens to have the compound off their g4003 and can compare these are the measurements I'm trying to validate.

Outer ring max dia to outside edge of mounting slot is 4.17" (105.5mm) inside edge is 3.39" (86mm) dia. Slot is .38" (10mm) wide. And the inside hole is 1.57" (40mm).

Sent from my SM-N950U using Tapatalk

The compound to my G4003G
has a 1.022 nose (up) in the middle of of the axis of rotation which is a close fit to the compound assembly
has an inner diameter of 3.388
has an outer diameter of 4.175

measured with dial caliper.

 

[LuJon]

The compound to my G4003G
has a 1.022 nose (up) in the middle of of the axis of rotation which is a close fit to the compound assembly
has an inner diameter of 3.388
has an outer diameter of 4.175

measured with dial caliper.

Thank you! Looks like the G4003 compound would bolt up and if the center boss on it is only 1.022 then I should be able to turn a bushing that will index to the 1.575 center on my lathe cross slide.

Sent from my iPad using Tapatalk Pro

 

[LuJon]

All things will be known shortly regarding the fit (fingers crossed). Grizzly finally got a complete compound in stock so I pulled the trigger.

Sent from my iPad using Tapatalk Pro

 

[LuJon]

Well the new compound bolted on but I will need to turn an adapter to create the pivot point for it to turn on. Right now the compound has a 1" hole in it and the cross slide has a 1.47 hole instead of either having a corresponding protuberance that the other would fit too. I'll need to make an adapter with a 1" diameter end that will press fit into the compound and a 1.47 end that will be a close fit to the cross slide. Basically short of it being perfect out of the box it couldn't be much better!

Next up will be sorting out the change gears. A previous owner must have crashed it and broke the 80T gear and the quadrant. This time Grizzly was nice enough to post a picture of their quadrant on a 1" grid so I can reasonably judge if it will fit. I was able to copy the picture then scale it correctly for printing and actually lay my broken part right over the 2D image of the replacement.

If you look close you can see the differences between the old part and the new one beneath it. Looks like the curved slots will be shorter but they have the same primary spacing/orientation so it should all bolt up.

Thanks for all of the help so far! I was starting to worry that I had shot myself in the foot buying this thing instead of continuing to save for a new one. I should be into this one right about 1/3 the cost of a new G4003 once it's all said and done.

Sent from my SM-N950U using Tapatalk

 

[Mitch Alsup]

Thanks for the update--keep us informed.