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+--- Thread: Bandsaw Blade Sharpener (/thread-3534.html)
Bandsaw Blade Sharpener - f350ca - 04-16-2017
Time for a metal project.
Grinders for sharpening the blades for the saw mill are stupid priced and I'm getting a huge collection of dull blades, so again necessity is the mother of invention or at least another project.
The idea is to build a unit that will grind the entire profile, that way the blade should just get narrower rather than the tooth get smaller if I only grind the tip. It will have a grinding head that moves up and down to follow the profile of the teeth, a cam device to generate the shape of the tooth and a mechanism to advance the blade.
I've looked for a small 3400 rpm totally enclosed motor for the grinder but haven't had much luck so Im sacrificing my chainsaw sharpener. On sale I can replace it for about $100.
Started building the grinder head.
Cut the shapes out on the cnc plasma table and tig welded the assembly. It will move up and down on two 6200 bearings. The shaft on the motor was long so made up an adaptor spool to mount the motor to the guard.
![[Image: h_WahdvE90N_kwCbtjYN9Iet0d_xkhbABhs2f9wo...7-h1276-no]](https://lh3.googleusercontent.com/h_WahdvE90N_kwCbtjYN9Iet0d_xkhbABhs2f9woJuz2v4b9iRpT8MSrogglJbkw_B_lD1a0O8ShS_wV0EYjAo9OFuLetsytSpQAoNwUNi3I-e_L3vAyIPD0EKEj9r5w-G2ecGT8JNtHtP8ORTNORNwKT6sZrj_RS_LjwjP5jfowfyBYLfcXogP-MEiDOweCaEQySdpJYG8BHWLSKUiVksNZk0lwNRk8Db0Y9I0vtr1AVsRgjwkChgI-DksY8ye7Me17C6GFT9mRSUrWKSS1EIEeU92IpnOHvJduQtNxJqKdxj-wdMsqmB19C-oC54KJsxPvtUOjr10rdrdBxdP9NAqiOncyjOWdZ3kqbrPFSP32V_kFrFqiC-8sy1PD3AipbmibIJZ2WxjuOpVZeERG-AupkL-Wc9Jj0rYN-kqWP8r6oDueyedxItf726FvUkhUkhjcXt8b4OE8w0TiALNBHSCBLQW-EdutqnjVPG6v0uyI2zyK7_d9TjQeyL3kqqGj-mPlL6fCItp94uVXYWak9uPnryH8dJfXynyFw2STTIQGD_PG2m_b8zuzD3zP_9_ILutG6-XvARJUMb38HShIcDj2xNHUDCI8QMtLmR1_Ck2_tgDjiGwr=w957-h1276-no)
![[Image: lNR-uvTHgdAfSrwu0a4nJw3LEXNunFhdQB9Aq8rV...7-h1276-no]](https://lh3.googleusercontent.com/lNR-uvTHgdAfSrwu0a4nJw3LEXNunFhdQB9Aq8rVlR5RvfGSgHh2L6GZnd0peCenk0vkzyjOB-aiReHTXcZwJymLEcvSwF89H3S1GpDKs-6ZiXC9G5AzyDoXHYbdoN93k3PSlHl5WnV9XHTjHP6U9w6wUNcUs-EBksO4DQ28OWqWesEbWl8dNbwnhwmAII6I_y6R8rc6hPQi3ZqS7RlKbRVrkn-iPgR5ql-zoDF74C8RDKJgIkLgSUmsZODOgNClxwtw_oPKV5RDR4CHqDA011qJyCSojDpYqMmtptFF1atK9C78dMWJTpk8CPR2pStULHwQRlE-ASrH4kvS9Nvft492ezMIXC9u_RTYTRd6IgQfdlWLQ99KXUfoF2690hy938tMUWqcj_qgi-lTTxFjeYgggMTWzuf32RaLuvxU5dLdS-pJSojTQkdbbXxzwML1AGPLyQEa3oAYqhnzaQB9lhTU-4go9XMG7OfC2XPD3UH37E81NuCBHOIuyP28bLtk4YQ9ptFJD_lqK5HOUPbw75BwEAF9oUm3GtGF8MY4TOk--nQ9cHGvtzaC3t-slOwM0DqQWRyFcCxWVVXbCPPwBT9E8dQaatYCdAtZ34-brXMUC7eypMCg=w957-h1276-no)
![[Image: ezeyEsYpSVtBaFmVa135GbWXUo2D_9sOu_3zw1M6...7-h1276-no]](https://lh3.googleusercontent.com/ezeyEsYpSVtBaFmVa135GbWXUo2D_9sOu_3zw1M6HNOij3Wcz7_xV4X638-nQirylvJKU2aYmnY479GGhzrJwtjDelJMist6hl2b1ZkCJ0r_kgaUe_yhKpQrkFLaNQdn6aOQj5qXhfNNbxukmeoRISp8Mntqd6kT8XY5bFscqMJBOqWz4dp88dyOIhwBvSVCh7RfsEo9b1XbT8K2Uh7RUUWZzA7Jtvsalva6QX-8Ctby2w0cgX7Huy09vXXJ6SQeJQG_AWtLwBqSrUKFJ_CPrylJF7lFOtQQEVi-O74HQXoObO5JUK-ooIUDmbuOY19LtI9buxleqo0czhroRx3ZIelV6LyN2bjpp3LXMCGGUDHUaOtlGNhr-RvJ1j7xuqU1wkFLgBzbIVAnbrCemChmfHQsRaLrGaYVVH1FkOFN5R8iaLl7vMTU-XiuGvICCBB0c__UUGWA1FNf18oKNVcNWDCszee4XJbYPD20NlXotKX2wcXrBK_0vDuTIQbK5siwfKZmCbMyEGodl_u7y7P2XRksMdIjUPIR7W3hXX-LdwbujKWpdgXEy6SlVkfaOQzS3FsCRjLcjmu03rMR81iwKkOpExg52hfhs1F4agEpQab_rBItm3lQ=w957-h1276-no)
RE: Bandsaw Blade Sharpener - Roadracer_Al - 04-17-2017
In! can't wait to see how this develops.
RE: Bandsaw Blade Sharpener - vtsteam - 05-01-2017
I would very much like to see this one. I have a converted Harbor Freight chainsaw grinder to sharpen my bandsaw mill blades, but it doesn't follow the contour like yours will, so that would be a great improvement.
RE: Bandsaw Blade Sharpener - pepi - 05-02-2017
Sure I like the idea, but wonder if the time is worth the price of a band saw blade. Of course the blade size would determine that value
I did repurpose a HF diamond chain saw blade sharper, to a tungsten sharper.. sped that little chore up nicely, I must do that often cause I still suck a TIG
Greg
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RE: Bandsaw Blade Sharpener - f350ca - 05-02-2017
Have a little more done on it but nothing photo worthy. Been busy with other peoples projects,
The blades on the mill are 1 1/4 by 16 feet with a 7/8th inch pitch. Think the last batch I bought were about $40 each, well worth regrinding a few times.
RE: Bandsaw Blade Sharpener - vtsteam - 05-02-2017
(05-02-2017, 03:48 PM)f350ca Wrote: Have a little more done on it but nothing photo worthy. Been busy with other peoples projects,
The blades on the mill are 1 1/4 by 16 feet with a 7/8th inch pitch. Think the last batch I bought were about $40 each, well worth regrinding a few times.
Same here, only 13 foot. Besides who like to waste things?