Problem with joining, missaligning

Problem with joining, missaligning

Anonymous
Not applicable
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8 Replies
Message 1 of 9

Problem with joining, missaligning

Anonymous
Not applicable

I'm, almost a little embarrassed to post this question, but it's driving me crazy. I can't join something as simple as v-slots together without a lot of adjustments. When I finally get the pieces to join in the right direction, measurements are way off.

The horizontal v-slot is exactly 600mm and I need 600mm between the two vertical (40x40) but I can't manage to sort that without an almost endless amount of jugging in joint alignment. What have I missed?

 

Also fairly obvious I got problems with joining directions and other fun stuff, almost painful to watch my own recording. Please help me 🙂 

 

 

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Accepted solutions (1)
810 Views
8 Replies
Replies (8)
Message 2 of 9

davebYYPCU
Consultant
Consultant

What have I missed?

 

Showing us,

any chance a file, pic or Screencast that you mention, being added?

Message 3 of 9

Anonymous
Not applicable

Sorry, messed up the screencast link, original post updated now

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Message 4 of 9

davebYYPCU
Consultant
Consultant

Do you know about the Inspect Tool, 

 

inspct.PNG

 

Measure, save the answer to the Clipboard and paste the value into the offset box.

You say the pink component is 600 long, so when you paste the second blue component,

Why not 600 plus the width of the blue component, no guessing, but you drag and drop, then joint, to an offset face that needs an offset to reposition, - too hard if you don't measure it.

 

Same for measuring the face of the bolt hole to the face of the rail, paste the value into the offset box.

 

Might help....

 

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Message 5 of 9

Anonymous
Not applicable

 


@davebYYPCU wrote:

Do you know about the Inspect Tool, 

 

inspct.PNG

 

Measure, save the answer to the Clipboard and paste the value into the offset box.

You say the pink component is 600 long, so when you paste the second blue component,

Why not 600 plus the width of the blue component, no guessing, but you drag and drop, then joint, to an offset face that needs an offset to reposition, - too hard if you don't measure it.

 

Same for measuring the face of the bolt hole to the face of the rail, paste the value into the offset box.

 

Might help....

 


Yup, keep inspecting, but I have trubble measuring at an 90 angle, just getting "bad" values. 
What do you mean with an offset face? Just as in sketching, create an offset plane and snap the objects to that? 
Will it matter on what plan the sketch on the v-slot is created to extrude the holes? 
The blue object is a 40x40 v-slot so total outside measurement should be 720, but as I keep changing the lengths as I add more components (designing a 3D printer) I need the lengths of the components to "drive" the other joined components. 
Maybe just me that is overcomplicating things. 

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Message 6 of 9

davebYYPCU
Consultant
Consultant

but I have trubble measuring at an 90 angle, just getting "bad" values.

Huh?

What do you mean with an offset face? Just as in sketching, create an offset plane and snap the objects to that? 

Nope,

measure the distance from the bolt face where you put the joint origin, to the outside face of the blue component.  What ever that distance is, is the offset for the offset box in the Joint dialogue, so that the pink member is exactly right.  No guessing cause it will be flush.

 

So 720 equals 2 blue bars and the length of the pink one?

When you move the second blue one, move it 660, now its lined up flush.  As built rigid joint, Done.

 

Might help....

 

 

Message 7 of 9

Anonymous
Not applicable

@davebYYPCU wrote:

but I have trubble measuring at an 90 angle, just getting "bad" values.

Huh?

What do you mean with an offset face? Just as in sketching, create an offset plane and snap the objects to that? 

Nope,

measure the distance from the bolt face where you put the joint origin, to the outside face of the blue component.  What ever that distance is, is the offset for the offset box in the Joint dialogue, so that the pink member is exactly right.  No guessing cause it will be flush.

 

So 720 equals 2 blue bars and the length of the pink one?

When you move the second blue one, move it 660, now its lined up flush.  As built rigid joint, Done.

 

Might help....

 

 


Sorry if I'm slow. 
Insert blue (40x40 v-slot)
Insert horizontal bar (600 in length, 20x40 v-slot)
Rigid joint on hole, copy paste inspected value from base of hole to flat surface of 40x40 as offset. 

Insert blue 2 (40x40 v-slot)

Rigid joint on hole of opposite side of horizontal bar, offset same value as pasted, but -

If I offset from the same hole 2nd 40x40 v-slot will not move if I change the length of the horizontal bar right? Without redefining joints. Isn't it better to joint to the "right" hole, just as I would IRL with a bolt?

 

If I cut and paste the inspected value (6.223mm from start of hole to flat face of the 40x40 v-slot) the total length is even more off as the inspect is the length, not at a straight angle to the face. 


Ofc, getting the math to add up is just as simple as drawing a rectangle from the base, 5,9555 and add that to the offset and the total length will add up. But it feels so, well wrong, as the face of the 40x40 is flat and the horizontal piece is 600mm (currently) so I'm more contemplating if I can define my holes in a way so I don't have to go through so much meassuring for each joint. Feels like I'm missing something fundamentionally easy here...

inspect2.jpginspect1.jpg

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Message 8 of 9

davebYYPCU
Consultant
Consultant
Accepted solution

Inspect will measure face to face.  Distance is the offset distance.  Not complicated.

 

Dstnc.PNG

 

Your face distance is 5.955, when adjusting the component alignment use 5.955 with confidence.

Make that value a parameter, and use it on all the joints.

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Message 9 of 9

Anonymous
Not applicable

Sometimes I just wan't to bang my head, literally, kept klicking the edge of the hole instead of the facet. Smiley Frustrated
User parameters was new, but so smart. Thx for that 🙂  

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