Back Machining Issue

[Georgi Baltov]

Hi guys,

I have mentioned this one here before but now I think there really is a program issue with full dado clearance. I think although it shows 0" clearance around our full dado backs it still uses the default clearance of 0.03" and all the backs I cut end up a full 0.0625" less. I am attaching a sample base cabinet that I use so that you can see and let me know.

The reason I know there's something wrong is that I cut some cabinets with a different program cabinet program (I will not mention) and on it I use all the same settings and construction as in eCabinets. I ended up with perfect fitting backs. Let me know if I can help you with something else so we can clear this problem.

Thank you

[Ryan Hochgesang]

Hello Georgi,

You will also need to be sure that the tool dia. which is being called in the cnc program has an updated diameter value in THM manager setup. You will need to mic your tool dia. and then enter the value for DIAMETER. If this dia. is not precise your dados will show this error. You will also want check and make sure the correct tool is being picked up from the tool holder and used for machining as I've seen tools accidently get swapped in changer.

In order for us to further investigate this issue here, you will need to submit the CNC code along with the EXPORT file which is gotten at your actual Thermwood control, so that the issue can be reproduced and further studied.

[Georgi Baltov]

I will collect the data that you requested.

The issue is in depth rather than diameter. It's the dado depth clearance witch I usually set at 0.03". I will make it as easy for you to track as possible.

1) Same cabinet;
2) Export Cut List (Excel file)
3) The actual CNC file

Would that be good enough?

[Ryan Hochgesang]

It is the EXPORT button in the NEST screen that I was requesting. This will give me all tooling setup etc... so we can reproduce here. You can include the excel file if you want. The more info. the better. If this issue is in the depth of cut as I misunderstood it was dia., then you will also want to check your DAYLIGHT value to ensure it is precisely correct from tool measuring process. You can see this value in the Tool Manager of your machine control and also tweak it if need be. You will also want to check the consistancy of depth cuts through your machinining table to see if perhaps it is time to resurface your spoilboard and recalibrate the auto tool length sensor.

[Georgi Baltov]

Hi Ryan,

that's the thing - I measure and surface exactly the same for both programs. The only difference is the final product.

Here's the file that I have included - hopefully it's my mistake and you can show me where I make it. I am including the export file from the Control Nesting but if you need something else let me know.

[Daniel Vonderheide]

I have taken your cabinet and created 3 twd files from it. The first is as you have it with no clearances at all on the back. The second has a depth clearance and the third has a fit clearance. I nested each one seperately and then compared the codes for all 3 against the file you sent in. All 4 files are the same. When you say that it is a depth clearance issue, are you meaning that it is cutting too deep into the material? When you assemble the cabinet, where is the extra clearance showing? Is the back recessed into the cabinet or does the back have sliding room side to side and up and down??

[Georgi Baltov]

Hi Daniel,

the cabinet has a sliding issue side to side and up and down. Weird though - I can not figure our where my mistake comes from. I change nothing. Well obviously we don't use the 1 1/4 back. That is changed to 3/4" material at the machine but the size matches exactly. What I have noticed is that the dado is too deep into the top,bottom and the sides. Does anything show on the depth machining. Tool #306 should be going exactly 0.5" into the material.

[Georgi Baltov]

Daniel,

I just checked for myself and it does show Z going to -0.5300. So for some reason it cuts deeper although no clearance is specified.

[Daniel Vonderheide]

I noticed that also. So I took the standard cabinet and changed the construction to full dado and then set the depth to .5 with no clearances. The code then gives me the -.5 depth as it should. I then changed the back mterial to 1.25 and checked. Again it gave me the correct number. I then changed the material thickness on this back when I created the twd file. it again created it with the -.5. I'm still looking at why your cabinet puts that in there but the standard cabinet does not.

[Georgi Baltov]

By standard you mean a cabinet from the "Standard Cabinets" folder? My cabinet is taken from previous versions of the program. I will be cutting some cabinets today and I will modify a standard base. I will let you know how it goes.

[Daniel Vonderheide]

The full dado is adding the depth clearance assigned to each of the surronding sides. If you go into your construction settings and look at the left, right, top, and deck depth clearances, this is where the .03 is getting added from. If you change these values to 4 different values, you will see that each is getting added to the depth on that respective piece. I have tested this with version 6 beta and it is working correctly there.

[Georgi Baltov]

I just tested a brand you cabinet from "Standard Cabinets" set to our standards. CNC file looks the same way.

I am just trying to help here so excuse me if I seem to be pain the butt or ask dumb questions. If the back dado depth is controlled from it's parameters menu so should be the clearance and fitting, right?

Aha, so V6 works fine sooooo when are you releasing it?

[Daniel Vonderheide]

If the back dado depth is controlled from it's parameters menu so should be the clearance and fitting, right?

Correct, it should be controlled there but there is an issue causing it to take the fit and depth clearances from the respective sides. All software issues found now are being tested with the version 6 beta to see if the issues still persist. As of now, I have not been informed of an actual release date yet for version 6.

[Georgi Baltov]

Thanks Daniel,

I was kidding about the release date. Take your time and make it work bug free as much as possible. And the ones you can't find I am sure one of us will pick up and let you know.