¿ªÔÆÌåÓý

Date   
Milling Attachment on mini lathe 4
I am put a Milling Attachment on mini lathe that post photos there milling attachment. I have a new copy of Tiag type milling attachment. From Walmart. Look how did on Littlemachineshop.com. They made it offset why? I have this since Nov 2023 from Amazon and just getting around to installing on the lathe. I have look putting on compound but that is unstable so going to put on the cross slide like others have done on internet but it always great even if bad. Dave FYI I finished rotary table. Nice light easy to use and setup. e
Started by davesmith1800 @ · Most recent @
Dismounting the headstock bearings 35
Sorry, I wrote the message on the web page and i sent it too quickly. Here's it again : Hi, I've some trouble adjusting the clearance of the headstock bearings on my lathe. It's a WBL210 Weiss lathe ; max Dia 200mm, 300mm between centers, roughly a 8x12" lathe of the same design as the 7x12 ones. The surface finish was not as smooth as expected: even with shallow pass with slow motion. It was looking like a ~2mm pitch thread with a very low roughness pretty lower than 0.1mm. Probably the leadscrew pitch amplified by the gear train and some play in between the spindle bearings. Tightening the nut at the end of the arbor improved the situation but I couldn't manage to tighten it farther. The bearings seemed to be blocked by something. The drawing doesn't show any obstacle however. the bearings are 30206, tapered roller type. On to the other hand, 6 months ago I attempted to troubleshoot the spindle of my milling machine (model VM18L from the same manufacturer), ending by tuning the deep groove bearing clearances. It went the same way as the lathe. But since I didn't notice any discrepancy, I let it as it was and remounted the spindle. Several times, I've replaced tapered bearings on the wheel hubs of my cars without any extracting issues. They went well adjusted but not needing any great force to get them. I assume that the accuracy of a machine spindle being greater than a car's hub one, leads to a tighter adjustment. But, does it really need an extractor or is that a specificity of this manufacturer or even a bad quality level ? I found some clues on https://www.arceurotrade.co.uk/machineguides/Mini-Lathe-Angular-Contact-Bearing-Change-Guide.pdf. The bearings are 6206 deep groove or 7206 angular contact ones. The procedure uses both an extractor or a press but doesn't specify the force. I'm puzzled by the fact that I can't manage to tighten a bit more the nut because, normally, the external bearing should slide against the shaft otherwise it should be impossible to adjust the clearance. Please, may a specialist bring some light over all of this and/or provide other URL to relevant information ? TIA
Started by Pierre-Raymond Rondelle @ · Most recent @
German screws / pencil sharpener 21
I have got a C1900 "Guhl & Harbeck , Hamburg" pencil sharpener for restoration . Jupiter 1 Some screws are missing, and before I force in some modern ISO screws; Had Germany their own screws size 100+ years ago? I cannot find a " pencil sharpener IO group" , so I am asking you. New screws can easy be made with a 7x12 lathe ? Johannes Mexico
Started by Johannes @ · Most recent @
ANSWER TO GUIDE RULE - OT 21
Hi guys. Sorry to come to this a bit late, I have 2 points though. * I¡¯m not sure what the problem is, as anyone can add OT to the title, as I have done. So why the continuing debate ??? * I am amazed at some of the replies, not only to this but others as well. Where part of the reply is in understandable English and the rest is gobbledygook !!! I can understand and forgive differences where clearly English is a second or third language. But where part of the message shows the writer understands English, I despair. Doesn¡¯t anyone read through and correct any more ? Ellis I forgot rotary table. If rotary table goes a mill it is OT. But if goes Mini lathe it is $&#^$ I guess it depends on if you interested read a about putting on a mini lathe if on topic or off. If do not like what they wrote then write moderators and say OFF TOPIC and ask to have it delete post so no has anything thing to read. The bottom for group to be interesting is have something to read about and better to comment on too. In November of 2023 I finally purchased a mini after reading about mini lathes since 2005. The resoan thinking a mini lathe in 2005 changed by time purchased. I chose to write about here and gave everyone here some read and write about. No one goes out buys a lathe every month. My first was a garulatoin present it only down payment on a $10,000 today same lathe cost $80,000 had for over 30 years. My next had for 20 years. The point is most do not go out and buy new lathe very often. So hard for very here to say a lot . So we all here need more than jest the mini lathes to talk about or this would a very slow group Dave
Started by Ellis Cory @ · Most recent @
cutting with rotating cutter 3
Question: Is lead screw a better tool to move the carriage correct in both direction than use the hand feed wheel? If so, I will make a crank on the right side of the leadscrew. (I am lazy, I do not want to stop the cutting wheel after a cut before returning it for the next cut.) Johannes Mexico
Started by Johannes @ · Most recent @
My new 4 jaw chuck for rotary table 15
Here mockup of chuck on rotary table. Note 3" barstock for chuck adapter. The table is only 3" diameter The chuck 1.89" [48 mm] for small work FYI I 5" for larger work too Dave
Started by davesmith1800 @ · Most recent @
[7x12MiniLath Lathe Mill table - OT
Some cranks & gears off a bike ? Once ya figure out the center of gravity on the mill the ya can start kickin ideas around . DC motors have a good hunk of torque for something like this , it's just finding the right one that may take some time . DOn't forget the limit switches . 40 + years back I have make a setup for all tghe short guys in manufacturing to be able to flip one of our large computer cabines over on its side so they could install anti tip parts . I got my hands on a sizzor life @ the size we needed & we made a flat bed that pivoted like on a dump truck .On the back of the flat bed we put some brackets so they could slide in piece on unistrut tha theld the cabinet to th eflat bed & acted as the handle for the tipping parts . Once we figured out the center of gravity on the cabinet so place the flatbed tipping point it was soothe sailing . Promoters have bee using rotating stages so folks don't have to wait for all the equipment changes between bands for years . animal On 1/30/25 10:08 AM, Ralph Lehotsky via groups.io wrote:
Started by mike allen @
Locked HOW TO KILL A TOPIC Re: [7x12MiniLathe] ANSWER TO GUIDE RULE - OT 11
The title is clear. I'm fed off this useless topic. Thank you. _._,_._,_
Started by Pierre-Raymond Rondelle @ · Most recent @
Locked ANSWER TO GUIDE RULE 26
MAYBE CREATEED A UNDTHER GROUPE LIKE DIY FOR OFF TOPIC INTERROGATION LIKE EXEMPLE WHAT KIND OF GLUE USE FOR PLASTIC OR GLASS IN STAINE GLASS WORK WE ALL HAVE SOME OTHER INTEREST IN DO IT YOURSEFT AND WE PROBALY ALL NEED HELP FROM OUR METAL LATE GROUP JACK 5 47 71 QUEBEC CITY CANIVAL CITY https://canotaglaceexperience.ca/en/?gad_source=5&gclid=EAIaIQobChMIt7PUyMfVigMVkmZHAR3pJCfPEAAYASAAEgI5q_D_BwE MY SUN IS THE BEST INTRUCTOR YOU CAN FIND A REAL CHAMPION
Started by Jacques Savard @ · Most recent @
4Jaw on hand drill 5
Here is a 4 jaw chuck on a hand drill. Looks like fun and trip say to hospital staff .
Started by davesmith1800 @ · Most recent @
Stuart Score steam engine. 3
I scored a Score at a recent auction. The materials kit is complete. It is missing all the paperwork. I can get most of the information from the 10H kit. But, I need the section on the crank shaft and the main body. Every thing else is just 10H duplicates. Can someone please assist? Howard Garner Pickens, SC
Started by earlyrail @ · Most recent @
Mini 4 jaw chuck 5
Just a new 4 jaw chuck for rotary table 48mm dia. Nice size for small parts. It is not turning just light work on the 3" rotary table. Dave
Started by davesmith1800 @ · Most recent @
Used pricing 10
I've upgraded to dedicated CNC machines and was looking for suggestions on how to price mini-lathe (Grizzly G8688) and mini-mill (Harbor Freight) for sale. Used but well taken care of. Fully adjusted. Each has a fair amount of aftermarket accessories such as MT#2 chuck, A2Z QC toolpost, ER32 collet chuck/collets, 4-jaw chuck --- power feed, belt-drive, air spring, rotary table (plus all original parts. Stand/table for each. I was thinking of starting out at 60% of Grizzly/HF new price plus 50% of new cost for the accessories. Is this realistic? In the end it's whatever the local market (West Coast USA) will support. There is a bone stock G8688 on FB marketplace with no accessories and some minimal tooling (worse condition than mine) for $1000 which strikes me as "highly optimistic".
Started by Tony Jones @ · Most recent @
Clock Bulders and moon phase gear
I just purchased new rotary table and remembered that clock builders always what a 59 tooth gear made. This can be done on a mini lathe and a 36 worm gear 3" rotary table. Found a index chart use bs plates
Started by davesmith1800 @
OS Rotary Table 3
I purchased a 3" Rotary Table at Christmas and have diving chart. Now looking at indexing.
Started by davesmith1800 @ · Most recent @
Armoire's machine shop the new frontier 11
Any do this Machine shop in Armoire's? This probably the new frontier for hobby. 1) Low cost 2) Space saving 3) Easy to move 4) Low cost in materials [COLOR="#669900"] I first look at mini as just a ???? After for over year it is nice. I changed because needing to downsize. With a few upgrades like a good tool post made great lathe. [/COLOR] Then later talking to son lacking space. So then we look hobby Armoire. He looking at other hobbies. Has any one did this or seen done? Dave
Started by davesmith1800 @ · Most recent @
Porta Band stand 5
Hey folks , I have this old Milwaukee porta band that has ben hanging out since i retired . It's a lot heavier that I remember them being . Have any of you come up with a bench or even a free standing setup that will let ya use a porta band like a cut off saw . I'm looking for ideas, pics , things that didn't work . thanks animal
Started by mike allen @ · Most recent @
LED Machine Lighting Sale 7
Menards (in the USA) today had the flexible LED goose neck lights on sale (7W) for $3.99 each. I just ordered 20 of them for my shop equipment. They are selling fast so I thought I would pass it along in case come one here is looking for equipment lighting.. https://www.menards.com/main/lighting-ceiling-fans/indoor-lighting/lamps/table-lamps/flexible-gooseneck-led-lamp/68769g/p-1642874340851661-c-7497.htm
Started by ram50v8efi @ · Most recent @
Sieg C3 vs SC3 29
Contemplating buying a mini lathe for home use. Is it worth spending the extra money to buy a SC3 as opposed to a C3 ?.
Started by Old Boilermaker @ · Most recent @
Grizzly G4003 - modifications to RideTheGearTrain software to accommodate this lathe #lead-screw #threading
Grizzly G4003 Lathe-modifications to RideTheGearTrain (free online to calculate the change gears needed to cut a thread. I had quite a busy time in the days leading up to Christmas. I had contacts from a couple of people who needed their lathe gearboxes added to the program (RideTheGearTrain). One lathe had crazy features I had not heard of before. It was a Chinese-made Grizzly G4003 (2005) model sold by the American Grizzly company. The spindle shaft is 16mm and the leadscrew shaft is 19mm, so they have two sets of change gears. This meant that I had to modify the program to handle it. It would have been a huge job to re-write the whole program, but not long ago I added a filter system. The user enters ALL their change gears initially, but they also click the button, currently labeled "Exclude Large gears", and here the user can enter a separate list of gears permitted for each position (or stud) in the gear train. If the program produces results with gears that are NOT permitted in any position, those results are deleted (filtered out) and only the reduced list of results is displayed. I added this filtering system a few months ago to prevent the display of results where a gear is too large to fit on the machine. A user had this problem. So the user enters a size limit (by number of teeth) for any position they want restricted. For example on some lathes there is a casting near the stud gear that prevents large gears from being fitted. If the size limit for the stud gear is 60 teeth, then the user enters 60 as the maximum size for the stud gear. Results using larger gears are filtered out. An advancement on this idea was to actually measure the distance between studs on the banjo, and from the DP (Diametral Pitch of the gears) the size of gears can be calculated. When there are gears on two 'studs' (or shafts) on the banjo, the radius of each gear is proportional to the number of teeth on that gear. The space required is the sum of the two radii. We can use the sum of the teeth on the two gears and from that calculate whether the two gears will fit between the two studs. If they don't fit, the filter program will remove the results from the list of results to be displayed. This method is rather complicated and I doubt whether anyone uses it. I haven't had any feedback about it. I did not have my Boxford in Tennessee when I wrote this. Now I am in New Zealand I could measure my lathe and see if it works. It probably isn't foolproof because fitting one pair of large gears on the banjo will limit how much room is available for the next pair. We could add up the teeth of ALL the gears on the gear train, but that would only work if the gears are arranged in s straight line, which they are not. Some more thought may be required. Going back to the weird Grizzly lathe, it has another quirk. It is fitted with a 91/86 compound pair for imperial to metric conversion. It is designed in such a way that this gear cannot be flipped over. RideTheGearTrain automatically tries flipping over compound pairs and it is quite surprising to me that it produces nearly as many results with the conversion gear flipped. A conversion gear with a ratio approximating 1.27 is fairly close to 1.25 which happens to be quite handy! So, how can we prevent RideTheGearTrain from displaying results with this gear flipped? Easy. Just use the filter system to tell the program to filter out any results where the gear in position Compound 2 (comp2) is larger than 87. Now with this filter system we can accommodate this peculiar lathe. Now I understand better why it is done this way. The gears designed to go on the leadscrew shaft have a long extended boss on one side - like a built-in spacer. If you put it with the spaced to the right, the gear engages with the metric conversion gear. If you flip the leadscrew gear over, so that the spacer is on the left, it now meshes with the gear on the compound pair which acts as an idler. This is used for cutting imperial threads. These leadscrew gears with the extensions cannot be used as stud gears. So, this lathe comes w
Started by Evan @
Current Image
Image Name
Sat 8:39am