Thank you both very much!! I just had many hours of hitting my head against wall, but at least figured out how to modify the tools. I will try out the code above tomorrow and have no doubt that it works. It took a while to figure out changes must be done on cloned object and they need to be reset for changes to take effect. And in case it helps some other C-hook newbie extern "C" __declspec(dllexport) void UpdateToolCoolantFromOperation(long opID) { using namespace Cnc::Tool; const operation* op = TpMainOpMgr.GetMainOpList().OpByID(opID); if (op == nullptr) return; std::vector<TlAssemblyCPtr> assemblies = GetAssemblies(); TlAssemblyCPtr opAssembly = FindAssemblyForOperation(assemblies, op); if (opAssembly == nullptr) return; // Perform changes on cloned object TlAssemblyPtr newAssembly = opAssembly->Clone(); TlToolMillPtr millTool = newAssembly->GetMillTool(); if (millTool == nullptr) return; TlHolderPtr holder = newAssembly->GetMainHolder(); if(holder != nullptr) holder->SetName(_T("Test holder")); //DebugBox(CString("Old name: ") + millTool->GetName()); millTool->SetName(_T("Test mill tool")); millTool->SetToolNumber(123); newAssembly->SetName(_T("Test assembly")); // OK! //newAssembly->SetToolNumber(123); Will be overwritten by SetMainTool() TlCoolant tlCool; // 0 = ON, 1 = WITH tlCool.SetFloodState(0); tlCool.SetFloodTime(1); tlCool.SetMistState(0); tlCool.SetMistTime(1); tlCool.SetToolState(0); tlCool.SetToolTime(1); millTool->SetCannedTxtCoolant(tlCool); // TlCoolant is auto-converted to array // Must reset for changes to take effect newAssembly->SetMainTool(millTool); if(holder != nullptr) newAssembly->SetMainHolder(holder); // Update database if (GetToolSystem()->Update(newAssembly)) { DebugBox(_T("OK")); } }

SlaveCam got it. You need to reset the main tool to the cloned assembly for the changes to stick. void OperationService::SetToolCoolant(int opID) { auto op = TpMainOpMgr.GetMainOpList().OpByID(opID); if (op != nullptr) { auto toolSystem = Cnc::Tool::GetToolSystem(); auto toolAssembly = Cnc::Tool::TlAssemblyCPtr(); if (toolSystem->Find(op->tl.slot, toolAssembly)) { auto toolAssemblyClone = toolAssembly->Clone(); if (toolAssemblyClone->HasMainTool()) { auto millTool = toolAssemblyClone->GetMillTool(); Cnc::Tool::TlCoolant tlCool; tlCool.SetFloodState(0); tlCool.SetFloodTime(1); tlCool.SetMistState(0); tlCool.SetMistTime(1); tlCool.SetToolState(0); tlCool.SetToolTime(1); millTool->SetCannedTxtCoolant(tlCool); toolAssemblyClone->SetMainTool(millTool); toolSystem->Update(toolAssemblyClone); } } } } The TlCoolant class is much more friendly than a vector. Sadly I knew about it less than a year ago; my memory isn't what it used to be. Makes me think that there has to be a friendlier way to update the operation coolant.

Have you tested this? I had the below function for setting a tool's coolant, but no matter what I do the coolant won't stick. void OperationService::SetToolCoolant(int opID) { auto op = TpMainOpMgr.GetMainOpList().OpByID(opID); if (op != nullptr) { auto toolSystem = Cnc::Tool::GetToolSystem(); auto toolAssembly = Cnc::Tool::TlAssemblyCPtr(); if (toolSystem->Find(op->tl.slot, toolAssembly)) { if (toolAssembly->HasMainTool()) { auto millTool = toolAssembly->GetMillTool(); std::vector<short> cannedTextCoolant(20); cannedTextCoolant[0] = -3101; cannedTextCoolant[1] = -4103; cannedTextCoolant[2] = -5105; millTool->SetCannedTxtCoolant(cannedTextCoolant); toolSystem->Update(toolAssembly->Clone()); } } } } I'm also totally wrong about the right most digits. They do have something to do with on and off; new theory below. 01 and 02 sets ON and OFF for Coolant 1 03 and 04 sets ON and OFF for Coolant 2 ...skip a few... 19 and 20 sets ON and OFF for Coolant 10 So to set Coolant 5 to ON and Before, use -3109.

Yeah, every major manufacturer I spoke with suggested a "special", but I would rather go off the shelf. Unfortunately I can't switch to a different insert as this is a "locked process". Thanks guys

I've read this whole thread at least 4 or 5 times and I believe I'm getting dumberer every time.