Scrit":zrn941kc said:Ah, so what we used to write up as an "RTFM Failure", then? :lol:
Scrit
When T&G or tenoning disc sets are made up for spindle moulders it is common to use discs with oversize bores (40mm on 30mm and 1-1/4in arbor machines) and mount them on a high top hat adaptor, spaced out, then locked down with a C-ring at the top. That is to ensure that there's enough clamping force that the cutters won't move. If they're still spinning either they're not locked down tightly enough or your brake hasn't been adjusted to accommodate the weight of the toolingJFC":m3cl6tbw said:One thing that does bother me is they don't stop spinning when the brake kicks in.
JFC":3qn45an1 said:Roger One thing that does bother me is they don't stop spinning when the brake kicks in . Other than that it seems to got rid of the problem .
Right i'm off to change me pants and have a stiff drink :shock:
This is a general problem with many DC injection brakes. They are set-up to stop a given weight in less than the mandatory maximum time, but spindle moulders can carry widely varying cutter weights. A 78mm diam. x 40mm high ally Euro profile block weighs 400 to 500 gm, a 100mm diam. x 40mm high steel Euro profile block weighs in at 1100 to 1200 gm (sans cutters), my 170mm diam. x 40mm high vari-angle chamfer block (in ally) is a svelte 1300 gm but the 190mm diameter panel raising block I sometimes use is a hefty 2.8kg without knives. Set the machine up to brake the small ally block and it mat allow the panel raiser to spin on (less of a problem with a spindle moulder as gravity will keep the cutters on the spindle, but still a potential contact injury hazard) - go the other way and set the brake up to cope specifically with the panel raiser and it may stop so abruptly when rumnning the small block that damage might occur.......... Great system, although having said that it's not normally too much of a problem :roll:JFC":1h45t7y7 said:No the spindle is spinning also . I've just been on the phone to Scrit and we think it's the brake but i will reset the whole thing in the morning and check .
Sorry RogerRoger Sinden":d87wlqlf said:John...it's JFC who's spinning :wink:
JFC":36cxy0rr said:No the spindle is spinning also . I've just been on the phone to Scrit and we think it's the brake but i will reset the whole thing in the morning and check .
Other than that i am amazed with the cut it has given , it has left a face edge of 20mm one side with no chips and a face of 0.72mm after the rebate with no chips :shock: (hammer)
He used to run Woodstock in London, didn't he? But that was a good 20 to 25 years agoMr_Grimsdale":1ilub8cg said:PS Does anyone happen to know the whereabouts of Alf M? Mrs Grimsdale also wants to know cos she used to work for him many years ago.
Yes got it. Good book too - but he can make things seem harder than they really are. The Martensson book somehow gives a more encouraging picture and has more photos. Best to have both books.Duncan":3lyft1hb said:Jacob,
Get a copy of the Spindle Molder Handbook by Eric Stephenson (Stobart Davis) just about the best book on Spindle Molding. even got bits in about a French Head - Good old days.
Shows you how to develop out cutters ect and how to grind them freehand just like we did when I was kid in the shop.
So how can we have the amazing versatility which was available not so long ago, and stay safe?Much of it dated in terms of the regs, but how you get Martensson's versatility and also reg compliance is another question, well worth asking.
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