Parrish Pump machining issue
Parrish Pump machining issue
I attempted to machine the parish pump that Michael provided. (Thanks Michael).. For the post part it machined as expected, however I did get step on one half the body on both sides. I used the toolpaths that were provided and saved with my post processor. Any ideas what would cause this?
- gkas
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Re: Parrish Pump machining issue
One thing you should never do is recalc 'foreign' toolpaths and go. You should replace the tools in the toolpath with the equivalent tools from your library, then recalc. I expect lots of 'funny' stuff to happen using someone else's tool defs.
- mtylerfl
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Re: Parrish Pump machining issue
Hi Carroll,
Thank you for posting the photo of the issue you had.
I’m not sure why the “stepping” occurred. Fortunately, it appears it can be sanded out and blended alright.
Some things I might check if it happened to me are...
- make sure the material is secured to the spoilboard very well and very flat
- spindle is trammed well
- collet is holding the bit securely with no chance of Bit slippage
- check that the Z axis is moving without any binding or “hiccup” (X and Y axis, too)
- and, as Gerry mentioned, double-check your own tooling matches the specs of the original file’s tooling
Thank you for posting the photo of the issue you had.
I’m not sure why the “stepping” occurred. Fortunately, it appears it can be sanded out and blended alright.
Some things I might check if it happened to me are...
- make sure the material is secured to the spoilboard very well and very flat
- spindle is trammed well
- collet is holding the bit securely with no chance of Bit slippage
- check that the Z axis is moving without any binding or “hiccup” (X and Y axis, too)
- and, as Gerry mentioned, double-check your own tooling matches the specs of the original file’s tooling
Michael Tyler
facebook.com/carvebuddy
-CarveWright CNC
-ShopBot Buddy PRSAlpha CNC
facebook.com/carvebuddy
-CarveWright CNC
-ShopBot Buddy PRSAlpha CNC
Re: Parrish Pump machining issue
Thanks guys for responding. I agree on using someone else's tool database. I studied the tools used before proceeding, but maybe I still got it wrong. Everything else cut fine, I will re-cut the pump body with my own strategy and see how it turns out. I just found it weird that it only did that on one side of the pump body.