A look at the LittleMachineShop com 3960 HT Minimill
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- Опубликовано: 5 сен 2024
- Fore those who may not have ever seen the LittleMachineShop.com Version of the very common Asian type Minimill, this in NOT your normal Minimill.
HT 3960 Minimill review
www.mini-lathe....
Joe AKA Jtoolman1949
![Bridgebort Milling Machine [Rescue]](http://i.ytimg.com/vi/zGv7MkdIP_w/mqdefault.jpg)
I recently purchased the Hi-Torque 3990 mini mill from LMS. After tramming the mill, which took an enormous amount of shimming, and adjusting the table gibbs, I have found it to be a very powerful and precise machine. Very much worth the investment. Wish I had gotten DRO’s with it, however. Maybe later.
I just purchased a Seig x2 from HarborF. Degreased, oiled with motor oil 10w-30 SAE . Noticed my X-axis Table was slightly moving in Y-"back an forth" when moving left to right. Like slop or play in it. When I engaged Y-axis lock lever (under the table near X-hand wheel it stopped. So I adjusted the 2 gib screws on the Y-axis near locking lever. After playing with it for over half an hour, I got it very smooth with same amount of BackLash as yours "3 to 4 Thousand." Tip to viewers...take your time, don't get frustrated, walk away an come back later to tinker with it. Grab your X-table with both hands also and attempt to move forward/back "Y directions." Play with gibs until "No Slop, Table moves freely, shouldn't have to lock Y to use X slide.
Sounds like you have yours all adjusted. I usually lock the opposite feed as a matter of old habit. I agree with you though.
I like going in there once every few months just to look around there and I.P.S. in south el monte like being able to physically see something I buy or might buy
Greetings to my favorite photo printing guru ! Jose you are a man of many talents. I've been looking into some small machines !
What specifically?
I'm am a bit up in the air on the mini concept but I have been looking at small metal lathes. I use my wood lathes a lot. My career as a woodworker builder left me with a shop full of wood tools but when it comes to metal I have a 3 foot metal brake and a couple welders I've seen a couple of nice old school craftsman metal lathes and then some huge engine lathes that were practically being given away I may look at a grizzly combo machine.
60 mm is closer to 2.5" than 1/2"
16mm
Excellent presentation, Jose! I'll bet you have been a machinist nearly your whole life! You even use the correct terminology and articulate your ideas very well. Just subscribed. Thanks!
Took it in junior high school and been at it till now. My other love which i integrate wit micomachining is scale miniatures. Thanks! I really need to do more content!
This is in the US, is it? I tried to order one but the import charges are higher than the cost of the machine.
Pasadena calif
but it has the spring suspension and plastic gears?
Is this machine difficult to "tram" in? Assuming it sits on a fairly level table, will it be hard to indicate the machine in properly?
Thanks Jose, excellent video. I'm looking to get a mill, so appreciate the review!
Great job on your machine.
Most people have 15 amp on a regular wall plug...
I just bought the same model mill ,you mentioned the older ones used to be equipped with air piston system ,now they have upgraded it to torsion spring, well mine does come with a torsion spring and I am replacing it with the an air shock,I don't think the torsion system was a great upgrade, do you still have the same opinion about the air spring vs torsion spring?
They used to come with the torsion spring. When to the air piston and now back to the spring. I am not sure this is a significant upgrade. They must know something we don't know. I prefer the model I currently have.
Exactly the same as all the minimills made by SIEG for all suppliers of minimills world wide.. The screws wear out very fast and they do not like to run loaded for extended periods the motor will cutout when it gets hot. All the screws are metric so that is why the calibration to inch is a bit off. I have the Chester version of this lathe and the gas strut system is much better than the spring version. All in all you get what you pay for.
+Gary C I agree! Their newer version went back to the gas cylinder again.
+Gary C Exactly..... you get what you pay for and I for one prefer not to buy this machine.
+GnosisMan50 Well I get their tools due to the fact that I produce instructional DVD content for littlemachineshop.com and I have to represent! Besides all of the Steam engines I make are in Brass and Aluminum. No real need for steel.
This machine actually uses INCH lead screws.
Thanks for the video! I just ordered the hi torque base from LMS to get more travel in the y axis , as I currently have the 4" y axis X2 mill. Getting the bigger Y movement will make me need a bigger Y axis Screw . How long does the Y Screw Measure on the 3960 HT Minimill ? Thanks again!
+mpix00 I really do not know. I would have to take a look and get back to you.
+Jose Rodriguez
That would help me so much, Thank you! I have a job coming up that requires me to machine 4.25" OD stock and my current, smaller X2 table only gives 4". The HT Base of 5" will be exactly what I need! I just need to know what length screw to order to get everything up and running
+Jose Rodriguez .. Hi Jose. did you measure the ball screw length? Could you let me know when you get a chance? Much appreciated!
+mpix00 The Y s few is about 7" in length. Total X/Y travel is 11.8" x5.1".
+Jose Rodriguez .. Thanks Nice. interesting enough, my CNC fusion kit #2 y axis ball screw measures the same on my smaller x2 mill. hopefully this will be enough for the larger SX2 table.
Lotta VCRs. Must have a massive 80 90s porn collection to preserve.
5 VCRs
I like you review very common sense stuff. Keep up your videos.
Thanks You!
Thank you very very much!
I don't see this mill on their site
+Fierceflyer55 I just noticed the same thing. It appears that they replaced it with the 3990 which has the "Air Spring" counterweight system to control the weight of the head stock as you move up and down on the Z axis.I believe that is the only change they made.I stated that it was not as good but apparently it's been improved upon so they've gone back to that design.These mills have really improved during their recent evolution. The one you DO NOT want is the one with the tilting column that may still be sold by some companies. It might seem like an advantage but you would have to re tram the mill after every column adjustment. I am going to be ordering the Micro Mill pretty soon and will do a review and video on it.Joe
me párese interesante por favor me puedes enviar vía Internet una cotización muchas gracias
I like this machine and the machine that I need good luck with him
What happened
Great info, thank you!
You are welcome.
this guy really loves VCR's, haha
but can you watch vhs on it?
l o l
Here is a good source for lots of DIY and restoration stuff-
gears, shafts, bearings chain drives etc.
www.cnctoolexpress.com/53-diy-parts-and-supplies
I wonder why machinists work in decimals but use the imperial measurement system. Why not just use metric? So much easier saying 1mm or 1um.
+ee8 dds17 I agree but until the USA completely goes metric, we will still be going back and forth. I like Decimals myself and just have not wrapped my head around metric yet. When I worked in a US Gov Bio Lab, we used Metric and Celcious.
Because the imperial is a much better system. The Metric is for people that don't understand fractions. Why is it better? both World wars were won by the Imperial system. Plus 0.001 is a much better measurement than .254mm.Actually it doesn't matter both systems give the same results, its just which one do you prefer.
because everyone else in the entire world thinks your wrong! You could also use an abacus if you want, but the rest of us prefer calculators because they are simpler and less mistakes are made. Its a brave new world this future we see coming. So how long is a cubit again??????
The imperial system is actually defined in terms of the metric system. The imperial system as a whole is just an odd conversion of metric.
BasicLoLCoaching - It's the other way around, actually. The "naturally-derived" meter was discovered some decades ago as being erroneously calculated. About the same time, the English (or Imperial?) inch was standardized as a function of a specified portion of the wavelength of the emission of a radioactive isotope. And the ISO meter is also defined the same way now. Where does anyone get the idea that the "metric" system is any easier than any other? A UNIT IS A UNIT!!! Humans have used a base-ten ( or decimal) system, regardless of the units used, since before recorded history because, what!?, Oh! We (most of us, anyway) have ten counters, or fingers. All makes sense, until you throw in the one factor that screws it all up - time!!! A base-sixty? Or is it base-12 or -24 system? Metrics, schmetrics. Someone just wanted to sell America's auto mechanics another whole box full of tools, that's all.
enough talk. Tear it down already.