cutting inside cut
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- Posts: 36
- Joined: Sat Jan 23, 2016 5:10 pm
- Model of CNC Machine: CNC Shark v21
- Location: Memphis, U.S. of A.
cutting inside cut
ha folks
HAPPY NEW YEAR
ok this is whats happening
ive been cutting signs so really didn't notice.
also haven't cut from Thanks Giving till New Year
cnc shark 24x24 table-dewalt router- .25 em bit (sharp)
post processor (cnc shark-USB 3D contour inch)
i cut a circle 2.75 inside cut (building a carriage for a smaller router)
finished cut 2.68-cut a square 3x3 finished 2.95x2.98 also inside cut.
what am i missing here?
thanks
otto
oluhm@bellsouth.net
HAPPY NEW YEAR
ok this is whats happening
ive been cutting signs so really didn't notice.
also haven't cut from Thanks Giving till New Year
cnc shark 24x24 table-dewalt router- .25 em bit (sharp)
post processor (cnc shark-USB 3D contour inch)
i cut a circle 2.75 inside cut (building a carriage for a smaller router)
finished cut 2.68-cut a square 3x3 finished 2.95x2.98 also inside cut.
what am i missing here?
thanks
otto
oluhm@bellsouth.net
- Rcnewcomb
- Vectric Archimage
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Re: cutting inside cut
Can you post the file? Oftentimes in these situations the tool diameter in the tool database is different than the tool name, or a different tool was used in the router than was specified in the cut file.
- Randall Newcomb
10 fingers in, 10 fingers out, another good day in the shop
10 fingers in, 10 fingers out, another good day in the shop
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- Joined: Sat Jan 23, 2016 5:10 pm
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Re: cutting inside cut
Sure
I'll get it to ya tomorrow
Thanks
Otto
I'll get it to ya tomorrow
Thanks
Otto
- FixitMike
- Vectric Wizard
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Re: cutting inside cut
It can be tool and machine deflection. What happens if you run the cut a second time so there is only a slight amount of material removed?
Good judgement comes from experience.
Experience comes from bad judgement.
Experience comes from bad judgement.
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- Vectric Wizard
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Re: cutting inside cut
If you were climb cutting, try conventional.
Gerry - http://www.thecncwoodworker.com
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- Posts: 36
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Re: cutting inside cut
yep
I did run a second cut.
it ran along the same track
I did run a second cut.
it ran along the same track
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- Posts: 36
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Re: cutting inside cut
here's the file
otto
- Adrian
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Re: cutting inside cut
Tool sizes look ok. Is the machine properly configured? If you tell it to move one inch does it move exactly one inch etc?
Most likely going to be deflection due to flex in the machine itself or slop somewhere if it's configured correctly. Sharks aren't the most robust of machines so it might be worth slowing the feed rate down.
Most likely going to be deflection due to flex in the machine itself or slop somewhere if it's configured correctly. Sharks aren't the most robust of machines so it might be worth slowing the feed rate down.
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- Posts: 36
- Joined: Sat Jan 23, 2016 5:10 pm
- Model of CNC Machine: CNC Shark v21
- Location: Memphis, U.S. of A.
Re: cutting inside cut
Rcnewcomb wrote:Can you post the file? Oftentimes in these situations the tool diameter in the tool database is different than the tool name, or a different tool was used in the router than was specified in the cut file.
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- router clamp cnc.crv
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- Posts: 36
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- Model of CNC Machine: CNC Shark v21
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Re: cutting inside cut
i'll give it a shotger21 wrote:If you were climb cutting, try conventional.
thanks
otto
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- Posts: 36
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Re: cutting inside cut
that is a great answer. your right about the shark too.Adrian wrote:Tool sizes look ok. Is the machine properly configured? If you tell it to move one inch does it move exactly one inch etc?
Most likely going to be deflection due to flex in the machine itself or slop somewhere if it's configured correctly. Sharks aren't the most robust of machines so it might be worth slowing the feed rate down.
i'll recheck the configureation
thanks
otto
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- Posts: 36
- Joined: Sat Jan 23, 2016 5:10 pm
- Model of CNC Machine: CNC Shark v21
- Location: Memphis, U.S. of A.
Re: cutting inside cut
adrianAdrian wrote:Tool sizes look ok. Is the machine properly configured? If you tell it to move one inch does it move exactly one inch etc?
Most likely going to be deflection due to flex in the machine itself or slop somewhere if it's configured correctly. Sharks aren't the most robust of machines so it might be worth slowing the feed rate down.
you where absolutely right about robust. i slowed the feed down to 50 then when cutting i slowed it down to 25% and it did great. i was cutting a .75 sheet of clear plexi for a smaller router holder on this machine. you got to pay to play
thanks to everyone for the good advise
otto