To mill on an angle...
- Thread starter namonllor
- Start date
Help Support Home Model Engine Machinist Forum:
Tin Falcon
Well-Known Member
- Joined
- Jul 9, 2007
- Messages
- 7,207
- Reaction score
- 787
There are many ways to set up an angle to mill it just comes down to what tooling you have how creative you are and what accuracy you need.
something like this maybe
Tin
something like this maybe
Tin
me im a newbie to this but when i need an angle i just scrib my angle onto the part then clamp it in the vice at the angle i need it . then just run my mill beside the part (turned off) to get it on the money then start milling if its right.
vlmarshall
Well-Known Member
- Joined
- Dec 28, 2008
- Messages
- 1,138
- Reaction score
- 1
Lacking a sine vise or an angle vise like Tin Falcon posted, use whatever you've got...even if it's just a pile of normal vises. ;D
I use one of the cube type angle gauges for all sorts of jobs and find it very useful. The 0.1 degree resolution worried me at first for the more critical jobs but in fact it is quite sensitive.
In use, you measure against a datum, so for example you zero it on the horizontal of the mill table and and any measurement is relative to that in the same way as a protractor would be. (no excuse for not levelling the machine though!).
I even use it the check the tram on my X2 mill, given the way the column is adjusted and clamped, I can get the final result about as accurate as using a DTI.
Usual disclaimer but the following link shows some examples of its use
http://cgi.ebay.co.uk/Digital-Angle...66:2|39:1|72:1688|240:1318|301:1|293:1|294:50
Regards
John
In use, you measure against a datum, so for example you zero it on the horizontal of the mill table and and any measurement is relative to that in the same way as a protractor would be. (no excuse for not levelling the machine though!).
I even use it the check the tram on my X2 mill, given the way the column is adjusted and clamped, I can get the final result about as accurate as using a DTI.
Usual disclaimer but the following link shows some examples of its use
http://cgi.ebay.co.uk/Digital-Angle...66:2|39:1|72:1688|240:1318|301:1|293:1|294:50
Regards
John
- Joined
- Jun 4, 2008
- Messages
- 3,285
- Reaction score
- 630
A set of angle plates that wring together is cheaper than a sine plate+gauge blocks.
mklotz
Well-Known Member
Sine bars (not plates) are dead cheap. Unless you're making parts for the Hubble space telescope, you don't need gage blocks to use a sine bar effectively. Calculate the block height you need and turn a cylinder to that length on the lathe. A 0.001" error in the stack height will only cause a microscopic error in the angle.
If you know no math, the (free) SINEBAR program on my page will do all the math for you, including the effect of an error in the stack height.
0.1 degrees is still fairly small. 0.1 deg = 1.7 milliradians so, if you make that error shooting at a 100 yard target, you'll miss by only 6.28 inches.
If you know no math, the (free) SINEBAR program on my page will do all the math for you, including the effect of an error in the stack height.
0.1 degrees is still fairly small. 0.1 deg = 1.7 milliradians so, if you make that error shooting at a 100 yard target, you'll miss by only 6.28 inches.
Tin Falcon
Well-Known Member
- Joined
- Jul 9, 2007
- Messages
- 7,207
- Reaction score
- 787
