Issues with STl file from Inventor into Quick CaM Pro

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TDIPower
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Issues with STl file from Inventor into Quick CaM Pro

Post by TDIPower » Mon 29 Jun , 2015 23:23 pm

Hi, I drew up a bottle in Inventor (set it to Metric mm and BSI standard first) exported as a binary STL as attached.

When I opened it in Quickcam pro it says it was drawn in imperial and not metric asking me if this was correct. I click no and it imports it 1/10 of its original size (40mm = 4mm) I tried this several times.

If I agree it was drawn in imperial 40mm becomes something like 60mm, can't remember exactly the ratio.

So with a bit of messing about I was able to get the item machined out although I had to increase the size to 1000% in quickcam pro.

I have never worked with Autodesk Inventor before (always Pro desktop) for 3D work and we are trying to move over to Inventor as a replacement.

I then decided to have a go at using the inverted option in Quickcam Pro so I could machine a hollow in a block as a demo to the kids about how it would be possible to Produce a mock bottle and a packaging insert for it.
I clicked the inverted option adjusted the scale and used the rest of the settings I had used to produce the bottle half. All the machine did was pass back and forth over the surface of the block then cut a single slot in the middle of the block.

The cutter is a 6mm ball nose, 45mm flutes and 50mm length.

Could some one have a look at the files and tell me what is going wrong?

I have just realised I didn't pull the FNC files for the bottle positive and negative, I will load them up tomorrow. FILES NOW ADDED
Attachments
bottleinv 1.fnc
Inverted file of bottle.
(28.89 KiB) Downloaded 841 times
bottle 1.fnc
bottle at 1000% in metric
(91.17 KiB) Downloaded 823 times
bottle 1.zip
Had to zip the original drawing as the forum doesn't like ipt files
(94.69 KiB) Downloaded 569 times
bottle 1.stl
(788.27 KiB) Downloaded 829 times

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Steve
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Re: Issues with STl file from Inventor into Quick CaM Pro

Post by Steve » Wed 01 Jul , 2015 17:07 pm

Inventor defaults to output in cm so you need to change the inventor settings to mm for it to be the right size.

The cut plane is set to 1.5mm so this would limit what could be made. The whole problem is probably down to the scaling of the stl issue

File: bottleinv 1.fnc
(******** QuickCAM Configuration ********
(Orientation X:90.000 Y:0.000 Z:90.000
(Cutplane Depth:-1.975
(Billet Size X:80.000 Y:60.000 Z:60.000
(Model Size X:80.000
(Model Size Y:60.000
(Model Size Z:19.750
(Model Scale:1000.000
(Model Rotation:0.000
(Model Distance from left X:0.000
(Model Distance from bottom Y:0.000
(Model Distance from top Z:0.000
(Border width X:0.000
(Border width Y:0.000
(Datum offset X:0.000
(Datum offset Y:0.000
(Datum offset Z:0.000

TDIPower
CNC Guru
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Posts: 613
Joined: Tue 29 Apr , 2014 18:38 pm
Hardware/Software: Starturn 5 (sort of running, I will get this done!)
Lathe cam designer V1.11
Quickturn 2D Design
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Microrouter Pro NS V5 (microstep)
VR2 and VR5
Boxford VMC260
Techsoft 2d Design tools V1 > V2
ProDesktop
Fusion 360
Deskproto

Re: Issues with STl file from Inventor into Quick CaM Pro

Post by TDIPower » Wed 01 Jul , 2015 20:06 pm

Cheers Steve

I did see something about mm and CM, that was a thought I had had so I did try exporting both with the same result. I will run through it again tomorrow, I must have missed something. When I ran through the steps I selected the cut plane to be half height so I don't understand why that has come out so small.

Ill have another go in the morning.

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