Specs on Threads for wood broom handle

[tscherer]

I am looking for information on the threads for a screw in wood handle, pitch, thread, depth etc.

[Bill Swann]

Look for a file in the Autodesk/Inventor_x/Design Data directory called thread.xls. You can enter the thread information there. I can not tell you exactly what information or column to use. Also do a search for thread.xls

[Ken]

I think they are 3/4-5 Acme type thread. I cannot confirm that. A Machinery Handbook would give you the thread form dimensions. I did not see that size in Inventor so you would have to add to the thread.xls as mentioned.

Ken@H-P Products
Louisville, OH

[Anonymous]

If it's acme threads more info is here:
http://discussion.autodesk.com/thread.jspa?messageID=5077146

[WalkerRA]

I have the data somewhere - I'll try to dig it up. I made a couple of FDM (plastic) prototypes of a handle-end. Of course it was easy to test it out on my garage broom!

-Russ

[Anonymous]

tscherer wrote:
> I am looking for information on the threads for a screw in wood handle, pitch, thread, depth etc.

If you check various brooms, you will find several variations on the
thread style. I had the same problem trying to find the most common
thread for the pole extensions for paint rollers. There are several
variations in use. One size does not fit all!

--
Billy Hiebert
HIEBERT SCULPTURE WORKS
Small Part Injection Molding
http://www.hieberts.com

[creativeguycincy]

I am trying to do the same thing. I am looking for the female thread. 

I have loaded the ACME thread XLS I found in the forums, but I think it is 3/4 x 6 and "maybe" is it 3/4 x 5.

I have also loaded Cool Orange so I can print the threads. 

[JDMather]

Attach the *.ipt file of your attempt here - we were just doing this type of thread in my class.

[creativeguycincy]

I really haven't attempted it in great detail. I found specs online of the thread. 

I did an edit on the Inventor XLS file and added all the specs. I did thread on my piece. Option came up as Acme .75 3/4 x 5. Added the thread and then used Cool Orange to contour the thread so I could print it. 

Printing as we speak. 9 hours, so I can let you know how it turns out. 

Here are the specs I found:

Internal

3/4-5   

0.75 Size Decimal

5           TPI

2G         Total Class

0.79      Major Dia.  Max

0.77        "         "       Min

0.6686   Pitch Dia.  Max

0.64             "     "      Min

0.56        Minor Dia.  Max

0.55             "        "     Min 

Internal Thread

[JDMather]

What version of Inventor are you using?

[creativeguycincy]

2020

[JDMather]

Can you Attach your attempt here?

[NigelHay]

Looking on Amazon & other places I can see taps & dies or threading kits for broom handles. They generally seem to be Acme but can be 5 or 6 tpi, I even saw reference to 5 1/2 tpi.

[creativeguycincy]

I figured it out, for me at least. I made a shape, did a coil, and printed. It works on my broom handle. Not sure if it is correct, but it works. Work plane 7, coil, at the end, were the last steps. New to inventor so sorry if my work is chaotic. I did what I could do. 

[JDMather]

---

@creativeguycincy wrote:

 New to inventor so sorry if my work is chaotic.

---

If I don't get back with an improved technique in a day or so - bump this thread back to the top if you would like to learn a better workflow....