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  1. a smile

    Tool Tool quality caused by rotary punching making attempts

    前几天,因为需要制作一些六角工具,所以买了一个很差的冲柄,只用了一次,就坏了。 后来即使用MT4锥柄改造冲床手柄也损坏过一次,我总结了大概的故障原因,然后开始制作偏心冲床。 最远端使用小滚珠轴承(内/外径9/26),然后是圆锥滚子轴承20/42,然后是滚珠滚珠轴承20/42。 然后,我制作了另一个类似结构的更大手柄,使用更大的手柄,并且还优化了轴承的组合。轴承内外径:9/26;25/52;25/52.. 试验结果:由于轴承组合结构不合理,小工具手柄很快损坏。 为了节省材料,我用了两段不同直径的钢材,用车床加工成紧密配合的尺寸。 使用液压机将其压在一起 采用 TIG...
  2. M

    FOR SALE: Bison 3JSC 12.375” OD chuck

    I dont know if this is the right website to post a bigger chuck but I will try. Seems to me there are a lot of good and reasonable people using this site. Beautiful 12.375” OD self-centering 3 jaw Bison chuck. Made in Poland. D1-8 direct mount. Hard master jaws with reversible hard top...
  3. I

    Used Lathe Prices

    I went and looked at some used lathes today and people have gone mad with post Covid greed. Some folks are charging the same amount as new for lathes that are 15 y/o and cost 1/2 at the time of purchase. Maybe someone can shed some light on why used tools are ridiculously expensive. I got so...
  4. F

    Available Lathes ON

    https://www.facebook.com/marketplace/item/1403889206740979/ https://www.facebook.com/marketplace/item/718408925983999/ https://www.facebook.com/marketplace/item/391612582891475/ https://www.facebook.com/marketplace/item/381325323923387/