¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
  1. Unimat
  2. Topics

T-slot adapter screw

 

Hi all,
With a long weekend coming up I need a project. I want to make a T-slot adapter screw. My lathe has not arrived yet so I have no idea of the dimensions of T-slots ect.
Does any one possibly have the dimensions of this item like
1. Total length
2. Size of T- nut (base)
3. T-nut shaft diameter
4. Length of T-nut shaft
5. The M12 x 1 thread length, the thread looks like it is about 6-7mm long, counting the threads.
Would be much appreciated if someone could supply these dimensions and it will keep me busy over this long weekend. Thanks

20230406_085435.jpg

 

This eBay item has two of different lengths.? I don't know what the longer one is all about.



And this is one of a different design that looks a little interesting.? Perhaps a stronger scheme.



Inline image

I tried to find an existing drawing for the original part online but had no luck.

Charles E "Chuck" Kinzer



On Wednesday, April 5, 2023 at 06:14:12 PM PDT, David James via groups.io <davebjames@...> wrote:


Hi all,
With a long weekend coming up I need a project. I want to make a T-slot adapter screw. My lathe has not arrived yet so I have no idea of the dimensions of T-slots ect.
Does any one possibly have the dimensions of this item like
1. Total length
2. Size of T- nut (base)
3. T-nut shaft diameter
4. Length of T-nut shaft
5. The M12 x 1 thread length, the thread looks like it is about 6-7mm long, counting the threads.
Would be much appreciated if someone could supply these dimensions and it will keep me busy over this long weekend. Thanks
 

We have blueprints for the regular t-nuts, and all you need to get the length of the thread is count the number of threads. That's a 1mm pitch. You get 12 threads? it's 112mm plus 1 or 2 for the chamfer. Ten threads? 10+1 or 2, then add the height of the regular t-nut.? If you use a pair of dividers, you can set them to the corners of the front flat, which is 12mm, IIRC, and then walk the dividers up the photo to measure the height.? There are parts that would be a great deal more difficult to scale from a photo, like the bases for the threading attachment, but this particular part should be dead easy.?

Got busy with other stuff, or would have done exactly that for the pile of parts I've been building for mine.?

Bill in OKC

William R. Meyers, MSgt, USAF(Ret.)

Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
SEMPER GUMBY!
Improvise, Adapt, and Overcome.
Physics doesn't care about your schedule.
The only reason I know anything is because I've done it wrong enough times to START to know better.
Expect in one hand, expectorate in the other. See which one gets full first.



On Wednesday, April 5, 2023 at 08:29:07 PM CDT, Charles Kinzer <ckinzer@...> wrote:


This eBay item has two of different lengths.? I don't know what the longer one is all about.



And this is one of a different design that looks a little interesting.? Perhaps a stronger scheme.



Inline image

I tried to find an existing drawing for the original part online but had no luck.

Charles E "Chuck" Kinzer



On Wednesday, April 5, 2023 at 06:14:12 PM PDT, David James via groups.io <davebjames@...> wrote:


Hi all,
With a long weekend coming up I need a project. I want to make a T-slot adapter screw. My lathe has not arrived yet so I have no idea of the dimensions of T-slots ect.
Does any one possibly have the dimensions of this item like
1. Total length
2. Size of T- nut (base)
3. T-nut shaft diameter
4. Length of T-nut shaft
5. The M12 x 1 thread length, the thread looks like it is about 6-7mm long, counting the threads.
Would be much appreciated if someone could supply these dimensions and it will keep me busy over this long weekend. Thanks
 

12mm. Not 1mm, not 112mm.?

William R. Meyers, MSgt, USAF(Ret.)

Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
SEMPER GUMBY!
Improvise, Adapt, and Overcome.
Physics doesn't care about your schedule.
The only reason I know anything is because I've done it wrong enough times to START to know better.
Expect in one hand, expectorate in the other. See which one gets full first.



On Wednesday, April 5, 2023 at 08:41:12 PM CDT, Bill in OKC too via groups.io <wmrmeyers@...> wrote:


We have blueprints for the regular t-nuts, and all you need to get the length of the thread is count the number of threads. That's a 1mm pitch. You get 12 threads? it's 112mm plus 1 or 2 for the chamfer. Ten threads? 10+1 or 2, then add the height of the regular t-nut.? If you use a pair of dividers, you can set them to the corners of the front flat, which is 12mm, IIRC, and then walk the dividers up the photo to measure the height.? There are parts that would be a great deal more difficult to scale from a photo, like the bases for the threading attachment, but this particular part should be dead easy.?

Got busy with other stuff, or would have done exactly that for the pile of parts I've been building for mine.?

Bill in OKC

William R. Meyers, MSgt, USAF(Ret.)

Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
SEMPER GUMBY!
Improvise, Adapt, and Overcome.
Physics doesn't care about your schedule.
The only reason I know anything is because I've done it wrong enough times to START to know better.
Expect in one hand, expectorate in the other. See which one gets full first.



On Wednesday, April 5, 2023 at 08:29:07 PM CDT, Charles Kinzer <ckinzer@...> wrote:


This eBay item has two of different lengths.? I don't know what the longer one is all about.



And this is one of a different design that looks a little interesting.? Perhaps a stronger scheme.



Inline image

I tried to find an existing drawing for the original part online but had no luck.

Charles E "Chuck" Kinzer



On Wednesday, April 5, 2023 at 06:14:12 PM PDT, David James via groups.io <davebjames@...> wrote:


Hi all,
With a long weekend coming up I need a project. I want to make a T-slot adapter screw. My lathe has not arrived yet so I have no idea of the dimensions of T-slots ect.
Does any one possibly have the dimensions of this item like
1. Total length
2. Size of T- nut (base)
3. T-nut shaft diameter
4. Length of T-nut shaft
5. The M12 x 1 thread length, the thread looks like it is about 6-7mm long, counting the threads.
Would be much appreciated if someone could supply these dimensions and it will keep me busy over this long weekend. Thanks
 

Thanks all, it looks like I will be making a few different ones, the dimensions of the slot on the cross slide would help

1 - 5 of 5