Chamfer problem (driving me nuts)

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papyblaise
Posts: 1355
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Location: France

Re: Chamfer problem (driving me nuts)

Postby papyblaise » Wed Oct 02, 2019 6:21 am

Hello
Stay in PartdesignWb and all works well
When you use Part your wheel becam a freesbee
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dgvirtual
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Re: Chamfer problem (driving me nuts)

Postby dgvirtual » Wed Oct 02, 2019 7:36 am

Thank you guys, your comments were helpful. In the final product I stayed in the PartDesign Workbench for most fillets and drew the circles in such a way that the circle start/finish line would be outside of the resulting pocket. Here is my design: https://www.thingiverse.com/thing:3892156
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pl7i92LCNC
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Location: RLP DE

Re: Chamfer problem (driving me nuts)

Postby pl7i92LCNC » Wed Oct 02, 2019 5:20 pm

i got a simple question WHY is this a 0,3mm or small champfer
the drawing needs to say all edges chamfer 0,3
no real Part is to be that precise or accurat on that

even if only top and back are to be chamfert "deburring"
it needs to be told on drawing not the part
the ISO Drawline at main Edge 0,7mm will get this thing under its paint
so please if it is only cosmetic forget about it
kisolre
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Re: Chamfer problem (driving me nuts)

Postby kisolre » Wed Oct 02, 2019 6:52 pm

pl7i92LCNC wrote:
Wed Oct 02, 2019 5:20 pm
i got a simple question WHY is this a 0,3mm or small champfer
the drawing needs to say all edges chamfer 0,3
no real Part is to be that precise or accurat on that

even if only top and back are to be chamfert "deburring"
it needs to be told on drawing not the part
the ISO Drawline at main Edge 0,7mm will get this thing under its paint
so please if it is only cosmetic forget about it
It looks like it is supposed to be 3D printed so having the proper solid is a must.
dgvirtual
Posts: 11
Joined: Sun Sep 22, 2019 9:08 am

Re: Chamfer problem (driving me nuts)

Postby dgvirtual » Thu Oct 03, 2019 5:49 pm

pl7i92LCNC wrote:
Wed Oct 02, 2019 5:20 pm
i got a simple question WHY is this a 0,3mm or small champfer
the drawing needs to say all edges chamfer 0,3
no real Part is to be that precise or accurat on that
This was just to demonstrate that even the smallest chamfer/fillet causes problems. In the end I used 0,5mm fillet. I think I may increase it to 1mm, just to see if it works.
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pl7i92LCNC
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Re: Chamfer problem (driving me nuts)

Postby pl7i92LCNC » Fri Oct 04, 2019 2:52 pm

for a 3D print the campfer must be 3 times the layerhight
and ofcause the layerwide is also giving a bad champfer as NORMAL 0,4 you need 1,2mm champfer to get a view
dgvirtual
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Re: Chamfer problem (driving me nuts)

Postby dgvirtual » Tue Oct 08, 2019 4:12 pm

pl7i92LCNC wrote:
Fri Oct 04, 2019 2:52 pm
for a 3D print the campfer must be 3 times the layerhight
and ofcause the layerwide is also giving a bad champfer as NORMAL 0,4 you need 1,2mm champfer to get a view
Thank you, that is interesting to know - the part of comment regarding 3 times the layer height... I will have to discuss that with the person who prints those things out for me. But what do you mean by the rest of the comment? I do not understand...
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pl7i92LCNC
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Re: Chamfer problem (driving me nuts)

Postby pl7i92LCNC » Tue Oct 08, 2019 4:45 pm

the nozzle that is used gives the width that also effects a fillet or a chumfer to a good view
its a layer production not a real part production from a pice of material

http://printwiki.org/Fillet