Showing posts with label machine shop. Show all posts
Showing posts with label machine shop. Show all posts

1/8" 4Fl SE Carbide End Mill Review

1/8 4Fl SE Carbide End Mill
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I was pleased with these tools. I used them to machine cured epoxy at 35K rpm. I have not used them in any other substrate but most likely they are decent quality for the money.

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Solid Micrograin Carbide. Style E700. Made in USA. Single End Center Cutting. 4 Flute.

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3 Axis CNC Milling Machine 12" X 31" Table Size , Large Table Travels,100-3000 Rpm Spindle Speeds, R8 Taper,2 Hp 3 Phase Motor, Includes All Software ,Instructional Dvd and 1 Year Warrantty Included Review

3 Axis CNC Milling Machine 12 X 31 Table Size , Large Table Travels,100-3000 Rpm Spindle Speeds, R8 Taper,2 Hp 3 Phase Motor, Includes All Software ,Instructional Dvd and 1 Year Warrantty Included
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3 Axis CNC Milling Machine 12" X 31" Table Size , Large Table Travels,100-3000 Rpm Spindle Speeds, R8 Taper,2 Hp 3 Phase Motor, Includes All Software ,Instructional Dvd and 1 Year Warrantty Included

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Full CNC automatic Operation, up to 3 simultaneaous M-codes,Variable speed inverter drive spindle motor,High accuracy ball screws grade P4,Working table area - 12"x31.5",12" spindle to table, delivered as shown in picture no additional software or products neccessary.

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Grizzly G9537 3/8" MT2 End Mill Holder, Draw Bar Thread 3/8" - 16 Review

Grizzly G9537 3/8 MT2 End Mill Holder, Draw Bar Thread 3/8 - 16
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Yes, folks, I bought this thing, and now when I use my smaller face mills, I'm stuck securing them in with an old pair of scissors rather than a proper hex wrench. Why? The retaining bolt isn't metric. I mean, for the love of god, why not make all hex heads metric? It's not like you have to worry about 400 years of backwards compatibility like with screws and bolts. Anyway, point being that if you have a cheap Chinese milling machine (like me) and order this product, be prepared to have to go down to Home Depot and buy another set of Allen wrenches.

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Hold your end mills in your Morse Taper #2 or Morse Taper #3 spindle with these quality End Mill Holders.Sized for various end mill shanks.

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Grizzly G3358 Mill / Drill Review

Grizzly G3358 Mill / Drill
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There isn't enough space to tell of the problems I've had with this machine. It epitomizes the stereotypical image of junk machinery built in the China of yesterday. I've seen lots of decent equipment come out of China in the last few years, but it seems that Grizzly has bypassed those manufacturers in favor of saving a few bucks. If you are going to be machining anything other than plastics, aluminum and other soft materials, don't waste your money. With anything heavier than 1/8" steel it's nothing more than a glorified drill press. And don't even think about using a boring head. The headstock and quill move so much under even a .050 cut as to be on the verge of dangerous. I've had to:
A. Rework the lead screw nuts. They are poorly cast bronze with a very clumsy system of adjusting backlash. Basically the nut is split with a saw and a cap screw is used to squeeze the threads together.
B. Spent several hours getting the quill so that an R8 collet could be inserted. The interior of the quill was not finished properly and the pins for the slots in the collets were set too long.
C. The motor will not start when cold without a lot of coaxing. They sent me another motor, but I could not get the pulley off of the original motor so I'm waiting for another pulley before I can see if a motor switch solves the problem. I'm just praying they send the keyway key as I requested. Obviously, being unable to remove the old pulley, I don't have the old keyway key.
D. The manual downfeed crank has a spot that binds on every revolution of the crank. I'm betting it's a poorly formed worm gear.
E. Not directly related to the mill, but the set of R8 collets I purchased with the mill had a collet that was marked as 1/2" but in fact was a 7/16" collet. Grizzly couldn't just exchange the single collet, they had to send me a complete set, charging my credit card. Several weeks after they had received the defective kit and determined that I indeed knew how to measure a collet size, they refunded the purchase price of the replacement collet set. But it took several emails and a phone call to get my return shipping costs reimbursed.
F. And on the matter of spare parts, except for the collet set, of the 1/2 dozen or so parts I've had to order for this machine, NOT ONE was correct in the first shipment.
Add a DRO for some accuracy and you might get some service out of this machine in soft materials. But if you are going to do more than drill 1/2" holes in steel, don't waste your time.
Gary - Plains, MT - gfb at mypage dot net.

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This is one of the best bargains on the market today. This Milling / Drilling machine features a powerful 2 H.P. motor, standard R-8 spindle with 5" of travel, 4-1/2" cast iron column, easy-to-read dials, reversing switch and more. And its a heavy brute! Weighing in at 620 lbs., you can expect lots of rigid, heavy duty performance. A lot of machine for the dollar; check out the specs below. Specifications: * Spindle taper:R-8 * Spindle travel:5" * Swing:15-7/8" * Max. distance spindle nose to table:17-3/4" * Column size:4-1/2" * Table size:28-3/4" x 8-1/4" * Max. table travel:19-3/9" * Cross-slide travel:7" * Drilling capacity:1-1/4" * Number of speeds:12 * Range of speeds:140-2570 RPM * Motor size (Single Phase 110V/220V):2 H.P., 20/10.5A * Approx. shipping weight:620 lbs.*Features: * 1/2" Drill Chuck * Clutch-type Downfeed Mechanism * Graduations are in inches

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Grizzly G9757 10 pc. 2 Flute HSS End Mill Set Review

Grizzly G9757 10 pc. 2 Flute HSS End Mill Set
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As good as any other HSS mill bits. Very sharp, two flute and come in plastic case.

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Priced for outstanding value, this 10-piece assortment of high-speed steel end mills features the following sizes:3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4".Finely-crafted mills are single-ended.Includes wood case.

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Proxxon 24260 Precision Machine Vise for MF 70 Review

Proxxon 24260 Precision Machine Vise for MF 70
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This solid steel machine vise is one of the best made and can be one of the handiest machine vises for any mini or micro mill, as well as an insert vise for larger vertical mills. I have used one for over 6 years and have been more than satisfied with it for more than 6 years. I just ordered two more. The original one was made in Germany and came in a very nice wooden box. I hope they are still made in Germany.
Until recently, I have basically used it for drilling on my drill press, because the hold down slots using M6x1 hex headed screws and using a 10mm open end wrench is very arkward. I recently drilled a couple of 1/4 inch holes right above the screw position trough the bottom jaw surface of the vise and used 10-32 socket headed set screws. The steel is not hardened and any high speed steel drill bit will work. This allows me to use 10-32 square nuts with my Proxxon MF70 mill, standard T-nuts with my Taig Micro-Mill, standard T-nuts with my Sherline mill, any T-nut supplied by A2Z-CNC with any other mini or micro mill. This vise, with my modification, handily and easily mounts on my Sherline 4 inch rotary table.
I have gone through many imported vises of the so called "screwless variety" and still often use the Sherline #3551 model. The precision machined right angle parallel sides allows for easy squaring onto the mill table, just like ant precision screwless machinist vise. While it might not be as good at preventing "movable jaw rise" as the screwless type, with my modification, the Proxxon is a real pleasure to use and it provides faster clamping and unclamping of parts for low volume production.
Update: September 9, 2010.
Yes, this vise is still made in Germany and comes in a slide top box. With custom "T" slot nuts, a have found this vise to nbe one of my favorites. I now own three of them. I so small ot production of specialty items and tooling. This has to be one of my favorites. It's worth evey cent. You get what you pay for - precision German Made product that is second to none.

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Precison machine vise for MF 70. Proxxon tools come with a 2 year factory warranty.

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JET JMD-18 350018 230-Volt 1 Phase Milling/Drilling Machine Review

JET JMD-18 350018 230-Volt 1 Phase Milling/Drilling Machine
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Jet machines are quite functional.
A milling machine is the heart of a machine shop.
If this is your first milling machine, expect to
spend and equal amount on the tooling you will need
to make it work. A clamping kit, an assortment of end mills
chucks and holders, a vice, a rotary table, an indexing head
and more will all be required to round out the purchase.
Horesepower translates into speed of material removal.
Bigger bits require greater power.
This is just a starter mill and you will want to upgrade
to something costing ten or twenty times as much when you
want to do production work as this one is all hand cranked
and requires a skilled operator to run it.
Did I mention that it cuts wood etc.? There are even machinable
ceramics which it can handle.
Again, expect to double the price (as a ballpark est.) on any
machine tool by the time it you are done. And plan to put it on
a solid foundation, not in your livingroom.
I use mine (a Jet VMM626) to make thermoplastic injection molds.

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With its generously sized worktable and hinged belt cover for faster speed changing, the Jet JMD-18 Mill Drill Machine is efficient and precise, whether you're working with aluminum, wood, or even ceramic tile. Powered by a UL-listed motor, this high-performance tool has a drilling capacity of 1-1/4 inch and a 15-7/8-inch swing. It also boasts a three-inch face mill capacity, a 3/4-inch end mill capacity, and a host of innovative features, like an easy-to-read internal depth gauge and a worklamp.
Extra-Large Work Table for Bigger JobsThanks to its extra large, 9.5 x 31.75-inch worktable, the JMD-18 gives you the freedom to tackle larger scale projects that require more space and flexibility. And the included worklamp provides ample illumination of any size work piece, even in dim conditions.
2 HP Motor and Hinged Belt Cover for Power and Fast ResultsThe JMD-18 operates with a powerful UL-listed, 2 HP, one phase, 230-volt motor that gives the tool a range of 12 spindle speeds from 15 to 3,000 RPM. And to minimize delays and wait periods as you transition to different speeds, this motor is also supported by a hinged belt cover that offers faster speed changing.
Cast Iron Column and Heavy-Duty Roller Bearings for Support and StabilityThe JMD-18 has a strong, supportive design. First, a one-piece cast iron column offers additional support where you need it, giving you the freedom to handle heavier material without worry. And heavy-duty, tapered roller bearings support the spindle for greater tolerance and more accurate drilling depth.
Easy-Read Depth Gauge and 360-Degree Swiveling Head for PrecisionEasy to operate, the JMD-18 offers user-friendly features, like satin finished easy-read dials, to guide you through every step of your project. A positive quick-stop knob combines with an easy-to-read internal depth gauge for consistency, while a 360-degree swiveling head gives you the flexibility you need for precise results.
The JMD-18 is backed by a two year warranty.
About JET: A History of Sharing New, Feature-Rich ProductsOpened in 1958 after the founder of the company, Leslie P. Sussman, took the first Boeing Jet Airplane trip from Seattle, Washington to Japan, JET began as a small dealer that sold air hoists and trolleys out of a single hardware store in Seattle. Over the years, JET has carried everything from snowmobiles, transmitter radios, and forklifts to nylon stockings, but by the early 1970s, metalworking had become the base of their business line. And by the 1980s, JET had expanded into the realm of woodworking. Today, you'll find that JET offers a wide range of popular woodworking tools that are backed with best-in-class features and excellent service.
What's in the BoxJMD-18 Mill Drill Machine, one worklamp, adjustable carbide facemill, drill press angle vise, 1/2-inch drill chuck, chuck arbor, and draw bar.

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Grizzly G0559 Large Milling Machine 12 x 54 Review

Grizzly G0559 Large Milling Machine 12 x 54
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this machine is a dream come true to all of us who have to make precise hole patterns, fully programable, no more guessing where the hole is gonna end!

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This is the colossus of knee mills! This machine is so rugged and heavy-duty that you\'ll have to see it to believe it. Start with a table that measures 12" X 54" X 4", that\'s hardened and precision ground and moves with a 3 axis power feed system.That\'s right, the knee has it\'s own own rapid traverse only powerfeed.And of course, the quill has its own feed rates of 0.0015", 0.003" and 0.006" with auto stop and return.Spindle speeds are easy to control with just a twist of the dial and it\'s variable from 90-3800 RPM.The hard chrome quill also means a lifetime of accurate, trouble free service. Features: * Meehanite casting * One shot pump lubrication system * Variable speed * Auto down feed * Auto stop with micro-adjustable setting * NT #40 spindle * Chrome plated precision ground quill * Y,Z covers * Quill feed rates: 0.0015, 0.003" and 0.006 * Longitudinal power feed * Cross slide power feed * Knee rapid traverse * DRO for X and Y axis * 5/8" -11 TPI drawbar * Specifications: * Approximate shipping weight of 3623 lbs * Motor: 5 HP, 220V, 3-phase, TEFC * Motor RPM: 1725 * Power transfer: Variable belt and pulley * Spindle travel: 5" * Table travel of 28" longitudinal, 15-1/4" cross * Head tilt of 45 degrees both ways; head swivel of 90 degrees both ways * Variable speed range: 90-3800 RPM

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Proxxon 34108 Micro Mill FF 230 Review

Proxxon 34108 Micro Mill FF 230
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I use it mainly for milling aluminum parts for 1:12 to 1:8 RC models. For this size of parts it works perfectly, I used both the 3 and 4 mm milling cutters and could take away 2 mm out of the full material with no problems. Probably even more material can be milled at once.
Despite the misleading description everything on the machine is metric (millimeters) which I consider a big plus.
It also works as an excellent drill stand. It runs very smooth and at really low noise.
The only reason why I didn't rate it with 5 stars: the compound table was delivered with excessive clearance on all parts. It is not difficult to adjust, but for example their micro compound table was delivered perfectly adjusted.
To make use of the machine you need at least order a step clamp set, milling cutters and also the machine vise is highly recommended. The machine vise (Proxxon 24255) is delivered with cap screws which are too long to fit on the compound table. I had to buy socket cap screws M6 x 16 mm.

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The micro milling machine FF 230 is a small, accurate milling system used to mill, drill and countersink steel, cast iron, aluminum, brass and plastic. The headstock swivels through 360°, indicated on a scale. Height is adjusted via a zero adjustable hand wheel, also used as fine feed when milling. One revolution equals 1/32" travel, 1 division equals .002". The quill and headstock may be locked in position, which is essential when milling. The powerful permanent magnet motor drives via a poly-v-belt, yielding high torques, especially at lower speeds. The machine comes with three collets of 15/64" - 5/16" and 25/64". The solid table has a size of 10 5/8" x 3 5/32" and is T-slotted to 15/32" x 15/64" x 13/64". Important: For best results when milling, it is recommended to lock the headstock. This is easily done by the FF 230's lock levers. Technical data: Speeds 280, 550, 870, 1,250, 1,700, 2,500 rpm Table Size 10 5/8" x 3 5/32" Column Size Ø 1 3/8" x 15 3/4" long X-Y Travel 6 11/16" x 2 9/16" Overall Height 20" Volts 110-120V AC, 60 Hz Weight 41 lb. Compound table KT 230: The individually available solid table is the same as described with the micro milling machine FF 230 above, has a size of 10 5/8" x 3 5/32" and is T-slotted to 15/32" x 15/64" x 13/64". The compound table does not include the headstock and column. The mill drill/head PF 230 may be attached to it. NO 24 106 Fine feed for mill/drill head PF 230 and micro milling machine FF 230: Easily installed. The feed may now be used via the height feed (vertical) or the fine feed in the tilted position. One revolution is equivalent to 1/16" spindle travel, with 1 division = .002". The graduated scale can be reset to zero.NO 24 140 Drill chuck: German industrial drill chuck with 13/32" capacity and 13/32" arbor, for mill/drill head PF 230 or milling machine FF 230. NO 24 110 Clamp set. Brinelled steel. Adjustable stepless between 15/64"and 1 37/64" pair. NO 24 272.

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Proxxon 37110 Micro Mill MF 70 Review

Proxxon 37110 Micro Mill MF 70
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I did a very thorough research before ordering the MF70 mill, and was impressed by the precision everyone said it has. The only complaint people gave against it was its small size and therefore limited range of use. But the price compared to other "micro mills" was also much less, so it seemed like a fair trade off. When I received mine I thought it was a bad one (previously used or tampered with) because the z-axis hand wheel had a full 1/4 turn of play. I wrote the US distributor of Proxxon and they replied that this phenomenon is common to this mill but not a problem as the machinist can work around it. The mill's description on Amazon and elsewhere clearly says there is no play in any of the axes. I interpreted this as meaning there was no play that the user could feel (since there has to be some in order for it to be able to move). 1/4 turn is quite far from that. People do use this and have good experience with it, so I don't know what the explanation is. I don't want a mill with that much play. So I have returned it and am going to spend a good deal more and get either the Sherline or Taig mill.

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Proxxon micro mill MF 70 - This small and beautiful unit is ideal - the accurate mill for lab, optician, jewelry, electronic and model building projects. Mill is made with a cast iron base. The vertical column and compound lathe are treated, high quality aluminum.All axes are play-free and have adjustable slides. The headstock, made of die cast aluminum, houses 24 pole balanced special motor and provides stability even at high operating speeds. This stability facilitates the use of the finest cutters. Comes with 6 triple slit hardened steel collets 1/32-Inch, 1/16-Inch, 5/64-Inch, 3/32-Inch, 7/64-Inch and 1/8-Inch (1.0, 1.5, 2.0, 2.35, 3.0 and 3.2mm) table has three T-slots and an adjustable ruler scale which eases the positioning of work-piece. All hand wheels are zero adjustable with one revolution equals 3/64-Inch (1.0mm) 1 division equals .002-Inch (0.05mm).

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