Dwg DXF to a 3d format to 3D print before Gcode to mill

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adbuch
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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by adbuch »

This is what I have so far. My model will only be as accurate as the data you provide.
David
rocker arm section view.jpg
view 1.jpg
view 2.jpg
view 3.jpg

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mcmental
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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by mcmental »

adbuch wrote: Mon Feb 21, 2022 11:27 pm What is this 1.jpg
This is 0.3mm
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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by mcmental »

adbuch wrote: Tue Feb 22, 2022 12:36 am hole thru center - need details.jpg
Yes it is a oil gallery, it runs from the top of the push rod end right through the centre(top of the centre groove and 20mm hole) and over to the 18.6mm slot where the silver roller is.
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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by adbuch »

My suggestion is that you mark up these images below with the dimensions you want. You can draw to show the oil passage, boss thicknesses, dimensions of groove in center of bore, etc. In actuality, the only things that really matter here are the physical geometry of the rocker arm. Fulcrum distances, angles for adjuster screw, overall width, bore size, etc. The rest of it is just cosmetics.
David
dimension it 1.jpg
dimension it 2.jpg
dimension it 3.jpg
dimension it 4.jpg
dimension it 5.jpg

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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by mcmental »

rocker side on.jpg
groove and oil passage.jpg
thank you david

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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by mcmental »

rocker side on.jpg

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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by mcmental »

oil gallery.jpg

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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by plasmanewbie »

Pretty awesome David, gotta love Fusion 360!
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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by mcmental »

Very good work from David!
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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by adbuch »

rocker arm final 1.jpg
rocker arm final 2.jpg
rocker arm final 3.jpg
rocker arm final 4.jpg
rocker arm final 5.jpg
rocker arm final 6.jpg
rocker arm final 7.jpg

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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by adbuch »

Plasmaspider apparently does not support stl file type, so here is the download link.

https://drive.google.com/file/d/1WpvgLf ... sp=sharing
rocker arm stl - FlashPrint.jpg


I would recommend that you print the part in the orientation shown below and using supports. Supports and raft are shown in green.
Supports and part are printed from the same material - PLA. Supports and raft will need to be trimmed away from part after printing.
rocker arm stl - FlashPrint with supports.jpg


This part would be best printed using a 3D printer with dual independent extruders. Use PLA for the print, and water soluble PVA for the supports.

After printing, soak the part in water for a few hours or more until the PVA supports dissolve.

Inside holes generally print a little bit smaller in diameter (shrink) so edit the stl file accordingly to achieve best actual size for round features. This typically involves printing a few times with adjustments in between until the desired sizes are achieved.
rocker arm stl - FlashPrint with PVA supports.jpg
rocker arm stl - FlashPrint with PVA supports 1.jpg


If printing using same material for both supports and part, then the print time will be shorter - but supports and raft will need to be manually trimmed away. This will not be practical for the 3mm cross hole, but for prototyping this method should work fine.

David

PS - Be sure to let us know how you make out with your prototype part.



rocker arm stl - FlashPrint with PLA supports.jpg

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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by mcmental »

Thanks for all your work David
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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by adbuch »

mcmental wrote: Wed Feb 23, 2022 2:53 am Thanks for all your work David
You are welcome! Now that you have the stl file, what is your next step?
David
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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by mcmental »

I’m going to 3D print it out today and get it checked against the original I got the photos of. I’ll do the same with the other piece, I just don’t have access to that only have the original drawing I supplied but I can print one of those out and try fitting it into the cylinder head in my garage
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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by Pspider Support »

adbuch wrote: Wed Feb 23, 2022 1:26 am Plasmaspider apparently does not support stl file type, so here is the download link.
We support stl file type now :Like

Rocker Arm solid body.stl

Thanks for bringing this up David and fantastic work on the 3d design!

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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by adbuch »

Pspider Support wrote: Wed Feb 23, 2022 11:24 am
adbuch wrote: Wed Feb 23, 2022 1:26 am Plasmaspider apparently does not support stl file type, so here is the download link.
We support stl file type now :Like


Rocker Arm solid body.stl


Thanks for bringing this up David and fantastic work on the 3d design!
Thanks for adding the stl format to the list of supported file types. And thank your for your kind praise! I am always happy to try to help.
David
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Re: Dwg DXF to a 3d format to 3D print before Gcode to mill

Post by mcmental »

David I printed it out earlier, just going to clean it up then I’ll post the info
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