baskruit said:
Dan025 said:
in the airforce i worked in a fab shop, we had 3 CNC mills and a lathe as well as a number of manual machines. we completed any type of repair that neeed fabrication on all types of equipment. when there was airframe damage we often had to measure the area to be repaired, draw it up in cad, produce a program and start cutting, if that ever took more than 2 days the officers in charge of maintenance would get on the shop chiefs case and he'd get on our case.
From a business view you couldn't be further off. While Warmoth needs to earn its own money to keep them from going bankrupt, the airforce just gets a big bag of taxpayer's money from the government. Give Warmoth a nice subsidy and they'll be able to make custom instruments for everyone for free.
not much money is spent on a one off if you already own the materials and equipment is my point, they even have a process down. this is more of a modification that a new product, money lost is more a case of lost production time. one great advantage of CNC machining is the on the fly flexability. especially in todays world of cad/cam which i know warmoth uses. i can produce a single part of even low complexity as fast on a CNC from scratch as fast as anyone on a manual machine. the more complex the design the more time CNC will save in the cutting process. to blame cost is just closed mindedness. i worded with at least 3 other guys that can do quick work on the CNC in the air force and work with a former prototype machinist now who claims his engineer would draw blueprints of experimental micorwave signal splitters for cell antennas almost daily and he'd produce a new part start to finnish within the same day as getting the blueprint, i know the talent is out there to make this a reality at low cost.
if warmoth said it wasn't viable because they dont see the sales potential i'd believe them but if a customer starts speaking for them about how difficult the idea would be i'm calling BS. i dont know what warmoths situation is as far as #of machines and programmers and operators, maybe one guy does everything, maybe production would have to stop, but if they have but if they have a few guys to run the machines i think they could have one guy modify his shift to work during non production hours and come up with a process.
and if you think we had a big bag of money you obviously over estimate the governments capacity to manage money. we had to fight for tooling all the time. and the money my shop saved far exceeded the cost to maintain it. if we could save a major component on an engine from scrap, an engine overhaul costs $1 million a new engine cost $5 million, do the math. uhf antenna mounting points used to get fatigued and crack, a new bulkhead costs an unimaginable sum never mind man hours and downtime for installation, a repair from our shop costs in the range of hundreds of dollars with only the down time of draining the fuel tanks and a few hours to install it, the part was made while the jet was being prepared, took about 2 hours to write a new better program for that one and 2 hours to cut it out.
this negative attitude everyone give people with ideas is why nothing gets done in america. im sure warmoth has good reason not to due this, i'd just like to hear it from warmoth not a there customers. and i dont ever want to hear my work refered to as bubble gum fixes, from anyone. i'm not talking duct tape over bullet holes type repairs, this isn't WWII we dont do that to a $30,000,000 investment, those plane should have been retired 20 years ago, but the cost for replacments is just to great and they still do a pretty good job. those things dont triple there expected service life and save the taxpayers hundreds of millions because of bublegum repairs.
this'll be my last post on this topic so it doesn't turn into a flame war.