-
28-06-2013 #11
therefore maybe something like these at the right speed...
Dremel Brad Point Drill Bit Set - 631 | eBay (they go up to 1/4")
never used them for tin, but they work great on acrylic! (& handy to have in your arsenal of bits - especially if your machine is confined/restricted to a 1/8" collet, such as a rotary tool in this arrangment - https://www.google.co.uk/shopping/pr...g&ved=0CCAQrRI)Last edited by HankMcSpank; 28-06-2013 at 10:16 AM.
-
28-06-2013 #12
I want to avoid drilling if I can , I want a sort of high bred clamp come punch template combo , ill work on it and see what I can do, thanks for the replies guys :)
Fiction is far more plausible when wrapped around a thread of truth
Nothing great was ever achieved without enthusiasm.
Ralph Waldo Emerson
-
28-06-2013 #13
juliuscaesar
Last edited by m_c; 20-05-2014 at 10:58 PM.
-
29-06-2013 #14
Hi Fivetide
regarding die press, a decent pillar drill should provide enough pressure for punching thin stuff,clamp your die to the table (simples)
-
29-06-2013 #15
What about this sort of punch press?
eBay item no.
121130794607
-
30-06-2013 #16
Whitney punch
Ebay 221245161892
peter
-
30-06-2013 #17
You'd probably get a decent hole if they were drilled with a milling slot drill. Probably a nice job for a CNC. Unless you fancy building a CNC punching machine...
-
30-06-2013 #18
Rotabroach annular cutter (aka mag drill cutter) often does a good job on sheet too... but you'd probably need a mill to hold the shank (fits nicely in a 19 mm ER32 collet). Sizes go down to 12 mm in standard series, never tried the 'mini' ones.
--
ah just seen it's a 1/4 inch hole so as you were...Last edited by bikepete; 30-06-2013 at 10:10 PM.
-
01-07-2013 #19
All great ideas but I have to be quite accurate with the holes, after marking them out then drilling chances are they won’t be that accurate. The PCB has about 5 mounted parts that need to go through the holes on different sides and there’s no play. Plus they have to be neat. So that’s why Im thinking of making a template I can slip over the edge of the tin box, sort of an inverted U shape and then using a hardened bolt that’s been cut down with a cutting edge done on a lathe that then screws through the die and punches out the holes.
Fiction is far more plausible when wrapped around a thread of truth
Nothing great was ever achieved without enthusiasm.
Ralph Waldo Emerson
-
A bit like these:-
Q.max Sheet Metal Hole Punch 25mm
But I don't think they are made down to 5mm. ...Clive
-
The Following User Says Thank You to Clive S For This Useful Post:
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
The new probe and finding the center of a hole
By Ricardoco in forum Probing, Digitizing & ScaningReplies: 9Last Post: 13-11-2015, 06:43 AM -
Hole Radius
By benkat in forum Machine DiscussionReplies: 0Last Post: 03-03-2014, 05:29 PM -
SBR16UU Centre hole.
By cambesol in forum Rails, Guideways & BearingsReplies: 3Last Post: 25-11-2013, 05:39 PM -
6mm shaft to 6.35mm hole?
By JuKu in forum Metalwork DiscussionReplies: 3Last Post: 15-12-2012, 02:29 PM
Bookmarks