Like everyone else on the forum, I am glad to hear criticisms as wells as praises. Even if I disagree with the criticisms, it helps me (and, I believe, others) to know what to look for. Oddly, it was a lengthy diatribe about "Chinese junk" on another forum that got me interested in PM machines.
However, I question the wisdom and justification for trying to rebuild a brand new machine before you speak to the manufacturer/supplier, or even after you speak to the manufacturer and before the problem is resolved. While I may well be the least knowledgeable person on this forum when it comes to machining, I may be one of the more knowledgeable when it comes to the uniform commercial code, warranties, etc. (That is what I do for a living.) The modifications described in the original post will void any warranty from any manufacturer. You can imagine what sort of response you would get from Ford/GMC/Chrysler/etc. if you bought a new car, didn't like the way it was built and then milled the heads, modified the electrical system, changed the suspension and then, when that didn't work, demand that the manufacturer either fix the problems (which you can no longer even prove existed because you "fixed" them) or give you a new car.
Just to defend my position, I would like to answer to your post questioning my wisdom and justification for the modifications.</SPAN>
As stated during this post Matt at Quality Machine Tools was contacted on February 2[SUP]nd</SPAN>[/SUP] (this year about 2 weeks after I received the mill). I am sure he was horrified to see the pictures I provided.</SPAN>
During this time Matt send me an email not to worry all will be taken care of. Matt was travelling and our conversation took place few days later. Hence there was some time on my hands to dismantle the suspected part and clean it.</SPAN>
From my experience dealing with Matt, as I purchased a lathe from him few years back, there was never any issue doing your own work. After all you do not ship the machinery back to the vendor, rather your are being send a part and replace it. I am sure Matt does a shopcalls if the machine is in close by area, but be aware I am on the West Coast of Canada, likely 3,000 miles away. I am not even sure how would serious warranty issue work.</SPAN>
By the time Matt got back to me few days later I had the feedbox stripped, cleaned, diagnosed the problem, fabricated the shim and got the mill working.</SPAN>
When the conversation took place, Matt had no issue with me cleaning the feedbox. If you read my post the next difficulty now was the play in the ACME thread which caused the issue that I was unable to plunge cut with any accuracy.</SPAN>
By that time I had some idea about the spring system and bounced the idea of Matt. Matt likely sensed that I am reasonably handy and did not mind me doing it. Being a journeyman mechanic in my sixties, and being able to work on fine European five speed gearbox, may have something to do with it. Working on a simple gears in a milling machine is like going back to stone age.</SPAN>
He was even liberal enough to say if I did not make any huge holes so the machine was resalable he would still take it back in exchange for an upgrade to a higher cost mill. So I have not proceed to these modifications without vendors knowledge. Going for different machine at the time was considered, unfortunately I have spent additional $3 to 4 thousand on tooling and dishing out extra money did not go well with my accounting department.</SPAN>
Matt certainly did not feel good about the feed box being machined 0.030” under to cause pressure on the gears. I on the other hand still seeing the sand in the feedbox said, I would like the complete new gear head. Maybe I should have pushed harder, but that option was not available. I was assured that the gear head is assembled in different plant and there will be no issues. the agreement ended with me receiving new feed box casting and few other bits and pieces.</SPAN>
I also was to receive two seal as the spindle started to leak.</SPAN>
I went ahead with my spring experiments and felt I was getting somewhere. When my prototype worked and I achieved ability to perform a milling operation I expected in the first place, I knew then that the mill is a keeper. I then moved onto a final product seen in the pictures. Having said that, all the modifications are fully reversible and if I would put it back the way it was received, I am confident that even the owner of the same mill would not noticed. I am also confident should owner of the same mill try my machine he/she would not want to go back to theirs, unless of course they do simple milling.</SPAN>
I called Matt from time to time. I even ordered 8” Vertex rotary table from him. Nice piece of gear, if anyone is looking for one (one of the nice Asian tools, and yes it was disassembled to the last piece, but did not need to be). But that one is made in Taiwan, I highly recommend it.</SPAN>
Seals arrived and I dismantled portion of the gear head. Some of you may have seen the post, I thought it was a good one, unfortunately it got removed for my inappropriate behavior of insulting one of the long standing member of the forum, for which I am truly sorry as it was totally unintentional.</SPAN>
Now with the mill working to my satisfaction, I started thinking. What does the thee year warranty really consist of???, I cleaned the machine of the sand, I machined few washers, figured out how it all works, dismantled gear head and replaced the seals. Somehow I felt and new that I got the raw end of the stick. Pity party? At my age, no way.</SPAN>
I called Matt, believe it or not, it was not about the mill, but about some Toolmex holders for my lathe he is got on his website. After all he is a Toolmex dealer as they do not sell directly. I left two phone call messages, I left the message with his helper, I left message with Nicole, it’s been I would say at least three weeks and I did not hear from Matt.</SPAN>
I asked myself, what if I was still waiting for my parts, thee month with the machinery down, he does not know that I am now happy with the mill, he does not know it is fixed, because I did not tell anyone. Not returning phone calls, specialy if he knows of my machine problems. That is not a good customer service. What happened to you Matt?</SPAN>
Leagle, as experienced warranty person, what is your view on this case? I know I perhaps gave you more information then it was necessary, but I like everyone to have all the facts.</SPAN>
I am not happy that I got carried away to the point that posting was terminated, I am not happy that I likely made Ray angry. But put yourself in my place, I still did not get any parts, I still did not get any reply from Quality Machine Tools. What I got was answer from someone I did not know is associated with Quality Machine Tools, telling me that I was offered a free replacement mill and parts are being shipped by Express Delivery which sounded like “It’s been only a week you are well taken care off.</SPAN>
Well, I will leave it at that. That was a hard work. I would rather change the seals on my mill again.</SPAN>
Cheers to all</SPAN>
Radek</SPAN>