Results 1 to 12 of 12
  1. #1
    Join Date
    Apr 2018
    Location
    Drouin Vic
    Posts
    633

    Default Involute gear cutters 12dp 1" bore

    Need to cut some change gears for my lathe and having trouble finding cutters with bore size to suit the 1" horizontal mill arbors I have. Specifically need the cutter for 55-135 teeth which is either #2 or #7 depending on manufacturer.

  2. #2
    Join Date
    Mar 2017
    Location
    Melbourne
    Age
    64
    Posts
    221

    Default

    The one's readily and cheaply available on ebay all seem to have metric bores. Like you, I only have imperial spindles on my horizontal mill. I've considered making a metric spindle, but that's not a 5min job. I did find a metric sized arbor to fit my vertical mill (NT30) which has worked ok for the odd gear. I'm sure the imperial ones are around, NOS perhaps, or from the US. At a price!
    Cheers, Tony

    Sent from my SM-N976B using Tapatalk

  3. #3
    Join Date
    Nov 2017
    Location
    Geelong, Australia
    Age
    57
    Posts
    2,651

    Default

    Just a thought, but depending on the physical gear size and clearance etc, you might be able to run a metric bore cutter using an R8 arbor in the bridgeport head.

    Steve

  4. #4
    Join Date
    Apr 2018
    Location
    Drouin Vic
    Posts
    633

    Default

    Yeah I have a 1" R8 slitting saw arbor as well, hoping I might be able to pick up a cutter to suit an arbor that I already have otherwise it just compounds the job. The horizontal arbor on my mill was bent when I bought it, took ages to find one close to the right length and it wasn't cheap. Don't want to repeat the exercise just for one cutter.

  5. #5
    Join Date
    Mar 2014
    Location
    South of Adelaide
    Posts
    1,225

    Default

    We use Ashgear over in the usa for stuff like that, but their prices might be outside a hobby budget.
    Ash Gear & Supply TEL:248.374.6155 FAX:248.374.6255 - Gear Cutting tools the same day!

  6. #6
    Join Date
    Aug 2008
    Location
    Melbourne
    Age
    34
    Posts
    1,075

    Default

    https://www.rdgtools.co.uk/acatalog/...R_CUTTERS.html $50 with the exchange rate plus shipping for the UK, which usually isn't too bad.
    Gear cutting specialists and general engineers www.hardmanbros.com.au
    Fine pitch gear cutting from 0.1 Module www.rigear.com.au

  7. #7
    Join Date
    Apr 2018
    Location
    Drouin Vic
    Posts
    633

    Default

    Quote Originally Posted by elanjacobs View Post
    https://www.rdgtools.co.uk/acatalog/...R_CUTTERS.html $50 with the exchange rate plus shipping for the UK, which usually isn't too bad.

    That looks like a good source, interestingly that page shows every cutter in the set except the one I need! Cutter #2 will enable me to do the 60 and 127-tooth gears that I need for metric threading on my lathe. I'll give them a call during pommy business hours and see if they have it.

    There are cheaper sources online but the idea of using Chi-speed-steel cutters I would not trust to cut a 1-tooth gear in plastic.

  8. #8
    Join Date
    Nov 2017
    Location
    Geelong, Australia
    Age
    57
    Posts
    2,651

    Default

    YMMV Pete, but I’ve had no issues with the Chinese cutters I’ve used to make the mild steel change gears for the Takisawa. I only bought the 3 individual cutters I needed, but have done pretty much the full set of gears.
    I just run them at proper speed with plenty of oil for lube and they’ve held up fine.

    Steve

  9. #9
    Join Date
    Apr 2018
    Location
    Drouin Vic
    Posts
    633

    Default

    Quote Originally Posted by OxxAndBert View Post
    YMMV Pete, but I’ve had no issues with the Chinese cutters I’ve used to make the mild steel change gears for the Takisawa. I only bought the 3 individual cutters I needed, but have done pretty much the full set of gears.
    I just run them at proper speed with plenty of oil for lube and they’ve held up fine.

    Steve
    I had to google YMMV. You teenagers and your txt-speak.

    TBH (see what I did there) the main barrier to the chicom cutters for me is finding something with a 1" bore so I can use my horizontal mill arbor. I was hoping someone may have a pile of cutters they don't use. Can always try

  10. #10
    Join Date
    Jun 2011
    Location
    Australia east coast
    Age
    71
    Posts
    2,713

    Default

    Quote Originally Posted by Pete O View Post
    I had to google YMMV. You teenagers and your txt-speak.

    TBH (see what I did there) the main barrier to the chicom cutters for me is finding something with a 1" bore so I can use my horizontal mill arbor. I was hoping someone may have a pile of cutters they don't use. Can always try
    I've got the cutter you need but bitter experience has led me to not lending cutters any more. If you were closer we could work out something WRT a loan but not once it involves the postal service.

    If you get really, really stuck and aren't on a tight timeline I may cut the gear(s) for you as long as you do all the work making the blanks. And, depending on the bore, the arbor if I don't have one the correct diameter. I've far too many jobs on ATM and lost 5 weeks of this year getting back from the big island thanks to covid travel restrictions.

    PDW

  11. #11
    Join Date
    Apr 2018
    Location
    Drouin Vic
    Posts
    633

    Default

    Quote Originally Posted by PDW View Post
    I've got the cutter you need but bitter experience has led me to not lending cutters any more. If you were closer we could work out something WRT a loan but not once it involves the postal service.

    If you get really, really stuck and aren't on a tight timeline I may cut the gear(s) for you as long as you do all the work making the blanks. And, depending on the bore, the arbor if I don't have one the correct diameter. I've far too many jobs on ATM and lost 5 weeks of this year getting back from the big island thanks to covid travel restrictions.

    PDW
    Thanks PDW, I don't think I would be comfortable using a borrowed cutter for a job like this either, was more hoping that someone might be in a position to sell me one they don't need. There's no urgency to this job and I think the whole point of having a hobby workshop is to do this stuff yourself rather than to pile work on others- I'm sure we all have a mountain of work in our lives waiting to be done, this job is not at the top of my own urgency list so I wouldn't want to add it to someone else's.
    Cheers
    Pete

  12. #12
    Join Date
    Oct 2011
    Location
    Norwood-ish, Adelaide
    Age
    59
    Posts
    6,540

    Default

    For some strange reason I have a duplicate no. 2 12DP, 1" bore.

    PM me if you are still looking for one.

    Michael

Similar Threads

  1. Involute gear cutter thickness
    By OxxAndBert in forum METALWORK GENERAL
    Replies: 1
    Last Post: 13th Oct 2019, 04:21 AM
  2. Sunderland gear cutters and cutters
    By Somedayplumbing in forum EBAY, GUMTREE, and other off forum sales sites
    Replies: 2
    Last Post: 28th Aug 2019, 10:34 PM
  3. Source for 20degree pressure angle 10dp involute gear cutters
    By caskwarrior in forum METALWORK GENERAL
    Replies: 13
    Last Post: 29th Mar 2019, 09:01 PM
  4. Sketchup Involute gear Plugin : Export 3d print file
    By steamingbill in forum METALWORK GENERAL
    Replies: 3
    Last Post: 11th Feb 2016, 09:30 PM
  5. involute cutters for hercus gears
    By tanii51 in forum THE HERCUS AREA
    Replies: 2
    Last Post: 12th May 2013, 06:32 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •