Compound Angle

[TheePres]

I have parts that need to face at various planes not parallel to base. I have discovered that by skewing part on Horizontal machine then rotating B axis i can do planar facing,our engineers were looking at farming out to 5-axis shops. My problem is in amount of skewing required, i did first by trial and error but was wondering if MC could give me solution somehow, maybe by measuring U-V's ? I have uploaded Compound.MC8 to FTP, in case somones willing to give it a shot.

Thank You.

[BernieT]

Just a thought, make a line perpendicular to each planer surface, then measure the angles of that line in 'Front' 'Top' or 'Side' views as necessary.

 

(Cplane-entity, pick flat surface,save. Creat-Line-Endpoints, click a point anywhere, for second point enter a value of Z10.)

 

HTH, BerTau

[McRae]

This is correct - grab hold of machinery's hand book and look up direction cosines. Analyse the endpoints of the line, use the relative coordinates between each (find the direction vector) and then use these coordinates in the formula. I would look it up for you but it is late Friday afternoon before a long weekend. Sorry

[TheePres]

Thanks for pointing me in right direction on this matter. I will try your suggestions and inform of results.

Thanks

[Jerry Crofoot]

There is an easier way. Create a "curve" at the intersection of the two surfaces (Create, curve, intersect). Since the two surfaces are flat, the curve will be a line. You will need to rotate your part on the rotary table so that the line you just created to be parallel with the centerline of the B-axis.

[TheePres]

Borrowing from your sugestions the solution was so easy to determine.

Projected horizontal line unto surface from side view and viewed from top view came out identical to my original result. See Compound2.mc8

Thank all again!!!

[Mgrenier]

hey pres,

 

Have you thought of using some kind of universal angle head? Here, we found out that in almost all cases, this is our best option.

 

Just a thought,

[Verisurf - Ernie Husted]

Have you seen the Tri-Tech 5-axis head attachment?

 

www.5-axis.com

 

Ernie