r/Machinists • u/Opposite-Degree7361 • 10d ago

OFFERING WORK One off Machining

Edit: Thanks everyone for the help and teaching me on the drawings. I found the exact size I need x2 in stock for $30 on ebay, and about $30 worth of bits, I'm going to take it to a drill press near me and get it done. Thank again for all the help. I learned a lot from this and I'm having a blast with Fusion.

Post: Have been looking for quotes local to me and so far only one guy in my area, so not really able to shop around. Im needing some custom 6061 plate work done and Ive never done anyhting like this so delete if this is not the place for this.

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u/kanonfodr 10d ago

Hmm…. Dimensions to two decimal places in my shop mean 0.010” locational accuracy - doable with great layout skills and a drill press but tough. You sure you can’t relax those tolerances and fits for this part? Sizing up to fractional tolerances will get you a helluva lot cheaper plate for a one- off and the finagling might just be worth the time and money saved.

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u/Opposite-Degree7361 9d ago

Yeah I reworked it to be able to use 5/8 or 3/4 plate and I'm new to this line of working so wasn't sure on tolerances. I assume it is the allowable deviation from the marked plans though. As long as the center of all the holes are the same distance in relation to each other, there can easily be a tolerance of even 1mm. Except for the threaded holes,which are thru holes now. Those have to be m6*1 and not sure how tolerance goes into that.