On Wed, 12 Jan 2022 at 10:50, John Dammeyer <jo...@autoartisans.com> wrote:
> So my Collet chuck arrived a week or so ago. Today the ER-32 collet set > arrived. I no longer have an excuse for not completing my 4th axis driven > by a real harmonic drive. (Well it is raining and can't cast). So I have > drawn up the face plate adaptor and that looks to be a pretty easy LCNC > project for the mill plus a bit of lathe work. > > However, I foolishly did not order a collet wrench. This seems to overall > be a pretty easy CNC project with the exception of the 'teeth' that engage > the collet. I suppose I could mill out the profiles in some oil hardening > steel, then file the teeth to have straight edges. Finally harden it. > > Alternatively make it out of 1/4" or so steel plate (or even aluminium) > and drill and tap holes for screws to protrude out where the teeth are. > Turn down the screw ends to be smooth or even square and lock the screws in > place. > > Looking for suggestions here. Don't really want to wait 2 months for one > wrench with either low price and horrendous shipping or high price and low > shipping. Cost ends up being the same at about $28. > > Thanks, > John > I would suggest getting a handle laser cut. If you mill it, or laser cut, put a recess at the internal corners so that there is no finishing required. See exaggerated picture Either way, make the handle double ended so you have greater control when using it. Single handled tools are more likely to slip. (can only be used when OD of cutter is less than nut, unless it's and open type) https://www.turnersupply.com/Product/129502242 https://www.ubuy.co.id/en/product/168WB1FKG-er40-wrench-cnc-collet-chuck-er-um-nut-spanner Roland
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