Newbie looking at 6040 (China CNC) for polypropylene 15mm sheet

[JOGARA]

FFS it did it again.

Jogging the machine towards the part, and it carries on. The remote shut off so you can't stop it till it decides to stop its self after 2-3 seconds.

And today was going good till now...

[Snapper]

FFS it did it again.

Jogging the machine towards the part, and it carries on. The remote shut off so you can't stop it till it decides to stop its self after 2-3 seconds.

And today was going good till now...

Nice. Looks like the vice is giving you much better results so worth every penny if it gets the job done.

For chatter if you're using HSM toolpaths full depth and shallow step over try using a bigger 8mm or 10mm tool. 6mm drill should be absolutely fine, I have absolutely zero problems doing a 6.

[JOGARA]

Nice. Looks like the vice is giving you much better results so worth every penny if it gets the job done.

For chatter if you're using HSM toolpaths full depth and shallow step over try using a bigger 8mm or 10mm tool. 6mm drill should be absolutely fine, I have absolutely zero problems doing a 6.

Yea it was a sound investment.

While it sounded like there was chatter, I could not feel anything in the part. Though I did do a contour finishing pass which would have hidden it I guess.

As for HSM, idk if that is what I am doing or not. Not sure what classes HSM. Currently I am taking a DOC that is 50% the width of the tool with a 45% step over.


The only problem I am having ATM is doing a chamfer. For some reason it is quite uneven around the part.
Looks like the part when clamped is lifting a hair but even so, it is low on that corner.
Can only guess that it is not being perfectly probed or the vice is out by a hair?

[Snapper]

Yea it was a sound investment.

While it sounded like there was chatter, I could not feel anything in the part. Though I did do a contour finishing pass which would have hidden it I guess.

As for HSM, idk if that is what I am doing or not. Not sure what classes HSM. Currently I am taking a DOC that is 50% the width of the tool with a 45% step over.


The only problem I am having ATM is doing a chamfer. For some reason it is quite uneven around the part.
Looks like the part when clamped is lifting a hair but even so, it is low on that corner.
Can only guess that it is not being perfectly probed or the vice is out by a hair?

If you're using fusion, use the adaptive tool path for clearing metal out. I've cut down to 13mm Doc with my OMIO, between 0.3/0.4mm step over. You can go wider if you're cutting shallower. Better for tool life too as you're using more of the tool than just constantly using the tip.

Skim off the top of the part so it's all perpendicular to your gantry and spindle then your chamfers should be even. A light rub with sandpaper and a quick splash with polish to remove the tool marks and it will look much better than the grainy texture on the top of the extrusion as well.