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| Cast iron guide way grinding.... |
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| PekkaNF:
Thanks Jonny and Norman, Could not sleep last night and I watched some videos and googled some views about scraping vs. moglice/turcite. Bottom line is that I need to have ways trued (milling, grinding, and/or scraping) and then I have an option of using same method or "plastic" for the mating surface. Each method has it's merits and this I need to weight against availability and price of the method. I'll give plastics/composites an consideration and check availability. Dogs are still out to see if I can have most parts clamped on the mill and have somebody to do much of the milling/gringing but no answers yet. I'm working slowly on plan "B" which is that I need to do it myself. Thanks, Pekka |
| hanermo:
An easy practical solution is to call the local haas dealer, they are nice guys, I knew them. Ask them who has a VF4 or bigger and will do a favour for a low cost, when they are not busy. They can mill it flat and straight on the flats in 5 minutes run and 0.5 hours setup. With V-blocks or a 4th axis they can also do the V-parts. No-way it will be off by 0.01 mm or more. Cast iron is very easy to machine. Ive seen at least 3 guys vids use homemade sleds and even routers ! to hold the stones, and they all went well. Richard King agrees that even flap /grinding wheels ! on air-powered grinders are a decent solution, to remove a bit at a time. King of like ghetto power-scraping. And he has used it, on big (6m long iirc ?) machines, by his own admission. There is a youtube video I think (small divots are made with a flexible-type wheel). It sounds a bit scary, but controlled material removal is not that hard, with power tools. Wont look flash, but would probably be fairly flat and true, on a global basis. I suggest that the haas route will cost around 100€ and the self-effort will cost 100+ hours of work. |
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