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16-04-2010
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Re: Homemade desktop CNC - cutting 0.8mm mild steel out the question?
Is the part particularly small? No possibility of running a couple of bolts through it?
If I had to guess I'd say the last .2mm of your tool is now exceedingly blunt and flex in the system is... -
15-04-2010
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- 7
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- 23,608
Re: Homemade desktop CNC - cutting 0.8mm mild steel out the question?
Program tabs into the job and leave about 0.25 mm in about 3 or 4 places.
This will hold it but allow you to snap it out the sheet easily.
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15-04-2010
- Replies
- 7
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- 23,608
Re: Homemade desktop CNC - cutting 0.8mm mild steel out the question?
nothings impossible with the right cutter, power and rigidity... you'll need to use a small, e.g. 3mm, cutter to bring the revs required into a possible range...
rough calcs...
cutting speed... -
01-03-2010
Thread: Does this quote seem reasonable?
by bogstandard- Replies
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- 33,470
Re: Does this quote seem reasonable?
It is easy to get a depth stop that you require.
Doing something like I have shown in the sketch will get you within a couple of thou tolerance for each one.
You don't have to use the bit of wood,... -
27-02-2010
Thread: Does this quote seem reasonable?
by bogstandard- Replies
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- 33,470
Re: Does this quote seem reasonable?
Why not just stick the pieces to a square bar magnet using the ends not requiring plating, like a hedgehog effect. The bar magnet should be able to conduct the power OK.
Bogs -
24-02-2010
Thread: Does this quote seem reasonable?
by Robin Hewitt- Replies
- 31
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- 33,470
Re: Does this quote seem reasonable?
Have you tried googling for 'steel dowel pins'?
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22-02-2010
Thread: End mill depth 'stop' rings
by ptjw7uk- Replies
- 10
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- 24,489
Re: End mill depth 'stop' rings
Hank
Try these http://www.bohan.co.uk/setrings.htm
Dont know the price but at least they list them.
Peter
Just found these http://www.crownhill.co.uk/level3.php?cat=51
and a price!
At 60p... -
15-02-2010
- Replies
- 15
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- 55,033
Re: Homing switches & 'methods of working' (Mach3)
Andy has it in one,
Read up in the Mach manual on the use of G54 -
15-02-2010
- Replies
- 15
- Views
- 55,033
Re: Homing switches & 'methods of working' (Mach3)
Hi Rob
Home switches are useful for repeatability if you want to use the center of the table you will use one of the offsets in Mach, G54 onwards I think they are, so you could set up a fixture in...
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My portable air conditioner - can...