Precision Matthews PM 1228 Lathe DIY Forward, Reverse, and Neutral Spring Loaded Lever

  Рет қаралды 2,828

DazeCars

DazeCars

Күн бұрын

Пікірлер: 66
@Houseworksaws
@Houseworksaws Ай бұрын
I’m rebuilding an early 90’s ENCO 9x20. Someone had stripped it and started a “CNC” debacle 😆. I’ve been watching all your tread mill motor vids and building my motor setup. Really helpful info here.
@dazecars
@dazecars Ай бұрын
glad I could help
@RustyInventions-wz6ir
@RustyInventions-wz6ir 2 ай бұрын
Very nice work mister. My lathe came out with the option, but I never thought of what to do without that gear option. Great job
@dazecars
@dazecars 2 ай бұрын
Thanks 👍
@dizzolve
@dizzolve Ай бұрын
love that you made a drill bushing........ holes have to be in the right spot that way
@dazecars
@dazecars Ай бұрын
it worked perfectly... I think part of it was luck 😁
@frankglass
@frankglass 2 ай бұрын
To bad PM doesn't incorporate this feature in their new lathes. Great job! I like the simplicity and design.
@Todestelzer
@Todestelzer 2 ай бұрын
It would cost additional money. Why should they bother adding it? As long as other mini lathes don’t offer it they will not lose in sales unfortunately.
@grntitan1
@grntitan1 2 ай бұрын
@@TodestelzerI wouldn’t call a 12” swing lathe a “mini lathe”.
@dazecars
@dazecars 2 ай бұрын
I have heard this lathe referred as the smallest BIG lathe you can get
@dazecars
@dazecars 2 ай бұрын
The way they set it up is "good enough" so they don't add it to save a $ and let the end user make a change if the end user so chooses. Interesting enough observation my PM 728 mill is of the highest quality in every aspect and I was extremely impressed with all the big mill features this bench top mill came with but the lathe is not quite as high quality as the mill. Don't get me wrong it's a nice lathe but by comparison to the mill there are lots of little areas where budget features like this were utilized. It is however quality where it matters in areas of accuracy.
@frankglass
@frankglass 2 ай бұрын
@dazecars good to know this. Really looking hard at a Grizzly lathe also but most videos I find in comparison point to the PM lathes, although the earlier models were made in Taiwan.
@bruceang82
@bruceang82 Ай бұрын
Thanks for the credit 😊 interesting Take on the reversing mech. I don't know why the factory doesn't offer this handy option. Keep up the good work. 👍
@dazecars
@dazecars Ай бұрын
Wouldn't have it any other way, as it was not my idea. The machining on yours was beautiful but a little more complicated then I wanted to deal with. The simple answer on why this lever is not installed from the factory is $. It would cost them more to manufacture and no end price value is added. In other words it would not allow them to raise the price of the machine to offset the costs.
@bruceang82
@bruceang82 Ай бұрын
@dazecars having watched your video, I can assure you my lever probably took less time to build & is quite simple really, my pin is very tight on the locating hole & I would be concerned with the looseness of unsupported 3/4" of the pin to hole aspect. As on most of my projects, I strive for a clean, functional & well-presented appearance. I put my builds out there for educational purposes & enjoy other people's take on the same problem (as I did with Joe Higgins) Cheers & have a nice day. 😄
@dazecars
@dazecars Ай бұрын
I hope you didn’t think I was knocking what you did. It’s beautiful work and it is an excellent solution . It was just more machining than I wanted to tackle. The only thing I had, to machine was the diameter of the shaft and the knob. As far as time spent I was able to make mine in an afternoon. The mounting bracket/lever is over 3/8 of an inch thick, which is more than enough to completely support the shaft and keep everything tight and true. Again, I really appreciate your video and the idea for this lever that it provided.
@rickpalechuk4411
@rickpalechuk4411 2 ай бұрын
I would have watched the cobbling 😢😊 Thanks for sharing Cheers
@dazecars
@dazecars 2 ай бұрын
Thanks for the input. Maybe I will show more of that in the next video.
@DavidM2002
@DavidM2002 2 ай бұрын
I'm the last person to be offering electrical advice but... when I bought my Myford lathe, the previous owner had added a toggle switch to run the motor in reverse. Just turn off the motor, flip the toggle switch, restart the motor and off it goes. In reverse. I have never investigated how this works or how it was done. It just works.
@dazecars
@dazecars 2 ай бұрын
This lathe has forward and reverse at the motor. All I need to do is push a button and the motor changes direction but that does not help in this situation. The carriage has power feed in both the X and Y axis as well as feed for single point threading. This power feed is driven off the spindle so to change the direction of the power feed without reversing the direction of the spindle you need to move the direction plate. Simply changing the direction of the motor would change the direction of the power feed but it would also change the direction of the spindle.
@DavidM2002
@DavidM2002 2 ай бұрын
@@dazecars Got you. Thanks for the explanation.
@dazecars
@dazecars 2 ай бұрын
my pleasure
@shawnlindemood6678
@shawnlindemood6678 2 ай бұрын
This came out well. For my 9X20 I had to make the whole reverse plate and add a gear. I added adjustable end stops for my shifter (like others did) to fine tune the gear mesh. My gears smaller and a little more sensitive to where the detents went.
@dazecars
@dazecars 2 ай бұрын
I would like to see the "adjustable end stops" you speak of got any links?
@FordFastback
@FordFastback Ай бұрын
@@dazecars Sorry, I though I posted the video I made. I don't see a few of my other account's post. This is the video I just made to show you what I did for lever stops. kzbin.info/www/bejne/oHfIh5ltfLeqd7M
@dazecars
@dazecars Ай бұрын
Thanks for the video. That answered my questions.
@argee55
@argee55 2 ай бұрын
Love this modification. I have a vintage Craftsman 109 lathe that works the same way.
@dazecars
@dazecars 2 ай бұрын
Lots of old school lathes come with this feature built in, but modern budget machines like this one don't always have it. I think the idea of this mod actually came from old school equipment.
@Glens1965
@Glens1965 2 ай бұрын
Very well done.!
@dazecars
@dazecars 2 ай бұрын
THANKS!
@UncleKennysPlace
@UncleKennysPlace 2 ай бұрын
One of my old lathes had this "built in", but interestingly my new Grizzly has f/n/r for both the carriage drive and the leadscrew in a gearbox. I am gonna have to ELS the thing, I really don't car for change gears!
@dazecars
@dazecars 2 ай бұрын
I have all the parts to convert this machine to ELS but being that this lathe has a threading transmission there is not as much of a reason to change. I can do almost any imperial thread without changing the change gears. Simply turn a knob. At some point I will likely go ELS but its not a priority.
@boulderup9c
@boulderup9c 15 күн бұрын
It's funny that my PM1022 has a knob on the front panel for forward-neutral-reverse of the leadscrew. Not sure why they don't do that on the 1228. I like your lever idea better though.
@dazecars
@dazecars 15 күн бұрын
Interesting that it comes factory on the 1022
@pdnetzer9561
@pdnetzer9561 2 ай бұрын
Nice job! I take it that you had to notch out the cabinet door for clearance? Could you send me a picture please?
@dazecars
@dazecars 2 ай бұрын
not much to see, I simply cut out a section of the door right on the leeding edge about 1" X 1.5" Contact me through my website and I can send you a pic.
@zjtr10since80
@zjtr10since80 2 ай бұрын
👍🏻👍🏻
@dazecars
@dazecars 2 ай бұрын
👌
@Richard-be9gp
@Richard-be9gp 2 ай бұрын
KISS keep it simple stupid, your approach works for me.
@paulshermet535
@paulshermet535 2 ай бұрын
It's called "keep it simple, smart guy"
@Richard-be9gp
@Richard-be9gp 2 ай бұрын
@@paulshermet535 Guess it depends on where you live, or don't in your case?
@dazecars
@dazecars 2 ай бұрын
"stupid"... "smart guy"... I have been called both 😁
@paulshermet535
@paulshermet535 2 ай бұрын
@@Richard-be9gp I live in Canada where we are less offensive, however, that phrase was from an American Hotel 6 commercial. "We will keep the lights on"
@Richard-be9gp
@Richard-be9gp 2 ай бұрын
@@paulshermet535 Paul it was a compliment I assumed those following are aware of. Point lost on the inter web. KISS, an acronym for "Keep it simple, stupid!", is a design principle first noted by the U.S. Navy in 1960. First seen partly in American English by at least 1938, KISS implies that simplicity should be a design goal. The phrase has been associated with aircraft engineer Kelly Johnson.
@MWhitsett-vv8lm
@MWhitsett-vv8lm 2 ай бұрын
Sorry. I don't know this lathe or any, but this changes what? If it is the rotation, how? Or is this for the linear retardation and advancement of the tool holder.
@kassilewis5511
@kassilewis5511 2 ай бұрын
It reverses the rotational direction of the lead screw and feed rod in relation to the chuck.
@dazecars
@dazecars 2 ай бұрын
The carriage has power feed in both the X and Y axis as well as feed for single point threading. This power feed is driven off the spindle so to change the direction of the power feed without reversing the direction of the spindle you need to move the direction plate.
@paulshermet535
@paulshermet535 2 ай бұрын
I can't believe there is no ELS. NO gear noise, gear changes, oily hands or checking for the right thread pitch.
@dazecars
@dazecars 2 ай бұрын
I have all the parts to convert it to ELS but being that this lathe has a threading transmission there is not as much of a reason to change. I can do almost any imperial thread without changing the change gears. Simply turn a knob. At some point I will likely go ELS but its not a priority.
@EitriBrokkr
@EitriBrokkr 2 ай бұрын
Why not? ELS is a stupid option for junk hobby lathes 🤷‍♂️
@dazecars
@dazecars 2 ай бұрын
First of all this is not a junk hobby lathe, second ELS is in fact a fantastic option even on smaller machines. For years I made a lot of parts using a Harbor Freight 3-in-1 mill lathe combo (many would consider that a "junk hobby lathe") It served me well however it was not setup from the factory to thread. I added ELS to it and that completely opened up what I could make on the machine. It was one of the better upgrades I did to that lathe and well worth the time and money.
@paulshermet535
@paulshermet535 2 ай бұрын
I put ELS on a worn 50's 10" Atlas lathe. I had very few gears. Now, I can change feed rate on the fly, have no noise and don't waste a bunch of time with gears for threads or feed speeds because I don't have a gear box. A used one is $800. My Clough42 ELS, all in,(stepper, belts, encoder, toothed gears and electronics was half of that with almost limitless choices. Will never go back.
@dazecars
@dazecars 2 ай бұрын
Agreed, I was very happy with my ELS on my old lathe. If I was messing with change gears I might be more motovated to upgrade the new machine.
@EitriBrokkr
@EitriBrokkr 2 ай бұрын
My lathe comes from the factory with this fancy lever, I think I've use it twice in 12 years... Nice work, but a complete waste of time
@dazecars
@dazecars 2 ай бұрын
thank you for your opinion
@dazecars
@dazecars 2 ай бұрын
I used it twice just today so I’m thinking what is apparently a waste of time for you is time well spent for me 🤣
@EitriBrokkr
@EitriBrokkr 2 ай бұрын
@@dazecars making an abnormal amount of left-hand fasteners?
@dazecars
@dazecars 2 ай бұрын
You would think, but no... just going from forward power feed to neutral. It's in switching between those two that I will likely use it the most and likely every day.
@bruceang82
@bruceang82 Ай бұрын
I use it every time I use my lathe, if not just to throw it in neutral, so all the mechanics are not needlessly turning over.
@orangetruckman
@orangetruckman 2 ай бұрын
Thank you for keeping it honest and giving credit where credit is due! Simply outstanding character 🫡
@dazecars
@dazecars 2 ай бұрын
no thanks necessary, wouldn't have it any other way
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