It means that since the tubes are hollow, if you simply do a Boolean subtract, you'll leave behind some geometry of the bench, and this will push the answer out of spec.
@@TooTallToby Ohhh! That was my problem. I couldn't figure out why the subtract was creating extra parts! I just deleted them, but that explains it. Thanks!
I get a very different mass for the seat. My dimensions of the seat is 96"x24"x5.5" this makes a volume of 0.20853m³ and this results in a mass of 468.72 lbs substraction the fillets and cutouts I get 454.556 lbs - this is very different from the correct answer 329.78lbs any idea where my error is?
1038.826 OnShape. Over an hour. I missed the red note saying "all dimensions are to centerline..." I thought the main tube radii bends were 12" to the inside of the bends instead of the center. Once I fixed that, everything else fixed itself. What a challenge! Drawing the sweep path, and carving out the bench seats was fun. I used a boolean subtract for the seats--is there a better way?
Awesome job Ken!! I think I did the sweep SOLID as a "tube". Then us used that same sweep path, and did another sweep as a CUT. This seemed to work well, and helped me avoid having that extra chunk of geometry!
@@TooTallToby Never thought of that! I guess I didn’t know a sweep could be used to cut. Makes perfect sense though. Thanks for the feedback! I always learn something from your channel!
9 minutes mark, Onshape with 1038.826 lb
1038.8453 lbs in 20:46
awww yeah nice job!
1038.83 lb in FreeCAD assembly. Over time.
Very nice - tricky complex model!!
On these multi body models it would help if you posted the mass of each component so I could trouble shoot my model easier.
MASS OF:
Large Seat: 329.78 lbs
Small Seat: 329.74 lbs
Large Blue Tube: 336.61 lbs
Black BAR: 21.35 lbs
Black BAR: 21.35 lbs
@@TooTallToby THANKS
@@bobevans4797 AWww yeah!!
In the drawing, the 'Tube geometry removed from benches' directive specifies '(clean)'. What does that mean?
It means that since the tubes are hollow, if you simply do a Boolean subtract, you'll leave behind some geometry of the bench, and this will push the answer out of spec.
@@TooTallToby Ohhh! That was my problem. I couldn't figure out why the subtract was creating extra parts! I just deleted them, but that explains it. Thanks!
1039,87 in 9:20
done, this one was tough for me. took too much time
Nice -fun model! What CAD system?
1038.6 g Did it a while ago, and took me some time. Difficult challenge. Dragos
I thought this would be another follow along tutorial
Lots of tutorials in this playlist: th-cam.com/play/PLzMIhOgu1Y5dcycGHHoZ1iwkjt13VG4jb.html
I get a very different mass for the seat.
My dimensions of the seat is 96"x24"x5.5" this makes a volume of 0.20853m³
and this results in a mass of 468.72 lbs
substraction the fillets and cutouts I get 454.556 lbs - this is very different from the correct answer 329.78lbs
any idea where my error is?
the seat is 4" thick, not 5.5"
1038.826 OnShape. Over an hour. I missed the red note saying "all dimensions are to centerline..." I thought the main tube radii bends were 12" to the inside of the bends instead of the center. Once I fixed that, everything else fixed itself. What a challenge! Drawing the sweep path, and carving out the bench seats was fun. I used a boolean subtract for the seats--is there a better way?
Awesome job Ken!! I think I did the sweep SOLID as a "tube". Then us used that same sweep path, and did another sweep as a CUT. This seemed to work well, and helped me avoid having that extra chunk of geometry!
@@TooTallToby Never thought of that! I guess I didn’t know a sweep could be used to cut. Makes perfect sense though. Thanks for the feedback! I always learn something from your channel!