Gallery, Projects and General > Neat Stuff
Rotary Broaching
plunger:
Rob I would really like to make one of these. I hope I can ask a couple of questions without showing how ignorant I am? How do you get the tapered shape on the two main parts. Are you sawing off the shape as close as possible and then filing or grinding to get it to look good or is this done on a rotary table.Are you using two cheap bearings Would a thrust bearing also not maybe work better here as well.How much strain does it put in a lathe to do a broach. Could this also be used on a milling machine to broach as well.
Have you made any broaches for yourself or are you buying broaches. This would be useful for making the odd tap handle that is obsolete in plumbing so it will only be used for brass.
would like to try and make my own broaches but I think it may be beyond a home shop ability. Square I can probably handle but I tried to make a 8 mm spline broach with 20 splines and was not successful. Would you have a suggestion as to how a spline broach could be made. Regards Eugene
Rob.Wilson:
Hi there Eugene
No problem , ask away :med:
--- Quote from: plunger on October 29, 2011, 03:58:01 AM --- How do you get the tapered shape on the two main parts. Are you sawing off the shape as close as possible and then filing or grinding to get it to look good or is this done on a rotary table.
--- End quote ---
I used a R/T for the job ,,,, it can be done by hand just the same :dremel:
--- Quote from: plunger on October 29, 2011, 03:58:01 AM ---.Are you using two cheap bearings Would a thrust bearing also not maybe work better here as well.
--- End quote ---
Yes i just used a couple of cheap bearing that i had at hand ,,,,, thrusts would be a much better job , now i no it works i will make a better job of it :dremel:
--- Quote from: plunger on October 29, 2011, 03:58:01 AM ---How much strain does it put in a lathe to do a broach.
--- End quote ---
Not allot in brass and ally ,,,,,,,,,,,,,,,, the larger the broach the more grunt required ,, i dig out info on that .
--- Quote from: plunger on October 29, 2011, 03:58:01 AM --- Could this also be used on a milling machine to broach as well.
--- End quote ---
Possibly never thought about it :med:
--- Quote from: plunger on October 29, 2011, 03:58:01 AM ---Have you made any broaches for yourself or are you buying broaches.
--- End quote ---
Yes i made the broach myself ,,, i used Silver steel / drill rod , water hardening ,, worked fine on brass ,, broke on stainless :lol:
--- Quote from: plunger on October 29, 2011, 03:58:01 AM ---This would be useful for making the odd tap handle that is obsolete in plumbing so it will only be used for brass.
--- End quote ---
Just the job :headbang:
--- Quote from: plunger on October 29, 2011, 03:58:01 AM ---
would like to try and make my own broaches but I think it may be beyond a home shop ability. Square I can probably handle but I tried to make a 8 mm spline broach with 20 splines and was not successful. Would you have a suggestion as to how a spline broach could be made.
--- End quote ---
Still thinking on that one :scratch:
Rob
Rob.Wilson:
The doodle i used to make mine
Rob
Joules:
Very Nice. Can you elaborate on its function and use, how come you adjust the clamp bolts in 2 axis not one ?
Joules
DaveH:
Rob,
Show off :lol: :lol: :lol: :lol: :lol:
Nah - nicely done.
Any chance you can fix your avatar before it induces an epilepsy fit. :D :D :D
:beer:
DaveH
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