As it can be seen, the replacement spindle can be cheaply made from a purchased collet holder. Could it be that an Allen key is needed rather than a screwdriver? He did not actually say oven, but he did say "freezer", "heat up" and "several days going back and forth". The absolute best I encountered are German but most Chinese are almost as good and very cheap + the collets are cheap too. Total length 70mm. An ideal companion to the Proxxon BFB 2000 Mill/Drill Stand Supplied with three ER11 Greetings folks! Both axes are fitted with adjustable dovetail slides. Should be a 15 minute swap out and I'll be back to 100% again. Printable View 12-03-2021, 11:35 AM mechhead35 Proxxon MF70 - ER11 spindle upgrade as a direct drop-in? i am going to install a new spindel motor in my little Proxxon mf70 mill, instead of the excisting Proxxon motor, since i think it makes too much noise. HmmmOP wants to use "milling-bits" in the range of .005" to .014" and wants to buy a machine for less than $1000 to use them in. Rest you can use touch method as by your photos. This page was generated at 02:54 PM. Quality Woodworking Tools hi, I have buy a new proxxon MF70, and I want find all parts for convert it by first steep - I want replace the motor and spindle original with a motor brushless and Free from play, readjustable dovetail gib in all axes. David has me hearing sounds now :-) I don't know if comparing Colombo bearing prices to HSD bearing prices is comparing apples to oranges, but the non-ceramic bearings for our 5HP Colombo spindle are approximately $400, delivered from Alpine Bearings. Use our magazine locator links to find your nearest stockist! After it is done, the hole is drilled and a thread is cut. But to what degree of accuracy 10,000 inch ? I may still do the ER11 chuck mod as it is reversible and allows access to a wider ranged of cutters. So no problem! BTW Mitutoyo calipers are wonderfully accurate tools. Speed Readout: Come with the LCD display, Real-time read spindle speed. Location: Saskatoon, Saskatchewan, Canada. Thanks, Nigel. and some mills 0.8 - 1.3 mm. though I can't find one for 18.00 right now here is one. How many times we saw the tracks supplied with the kit are out of scale, made with plywood, and not perfectly round both outside and inside? I do not have space for a workshop so all of my equipment will need to be put way overnight, so the MF70 weighing just 7Kg seems brilliant. I may have even banged into a few things over that time but would rather not get into specifics. In wooden box with sliding lid. I suggest Model engineer set ups and beef up cross table as in screws, vibration etc. the fan and the housing from shopbot is about 200.00 when I called. Sliding blocks and fixing screws included. There are far more experienced tool makers and writers like Tublar Cain, Wingrove (ships and cars). it started squeeling when it started up and I was sweating till I got the new one one had a bunch of emergency jobs to do. NEXT DAY DELIVERY options are also available. You heard it right, folks!! The triple slit, hardened steel MICROMOT collets cover 1 - 1.5 - 2 - 2.35 - 3 - 3.2mm. Then sim or ground. TEL (01582) 471900 Something to acquire right away! You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. The accurate milling machine for delicate projects. NO 24 260, Dividing head for MICRO Milling machine MF 70 and MICRO compound table KT 70 You want to make sure the paper slips under the probe with the same tension at all four corners of the vise. Group Build. NO 24 266, You are here: MICROMOT Tools - Table top tools - MICRO Milling machine MF 70, Handheld power tools battery-powered 10.8V, Handheld power tools 12V and transformers, Bits and cutters of industrial and dental quality, Tools for soldering, heating and glueing jobs, Workshop special sets with tubular box spanners, Bit and screwdriver sets for HX, TX, XZN and more, MicroSpeeder and Speeder ratchet spanners, MicroClick torque screwdrivers and wrenches, Download Cordless tools special brochures. Harrison M300, Bridgeport Interact, Hardinge CHNC4 and more, Complete Model Engineer Workshop For Sale, Hardinge HLV-H KL-1 taper backplate, metric gear bracket, change gears. With three machined sides. With reversed chuck jaws: Capacity inside 1.5 to 32mm, outside 12 to 65mm. Proxxon mf70 chuck er11 can be made from Maximum clamping width 34mm. One piece each 1 - 2 and 3mm. You are using an out of date browser. For vibration-free work at high speeds. The die-cast aluminium housing has two mounting options, a 20mm MICROMOT standard collar and 43mm European standard spindle collar. Due to the nature of its construction it is naturally suited to machine easy to machine materials such as aluminium, brass, wood or plastics. For machining circular work pieces, manufacturing off-set holes and milled out portions, milling key surfaces, four-sided, sixsided materials, etc. Proxxon MF70 experiences or alternatives? Depending on the size of your mill, you might be able to use a spindle speeder or an air powered spindle designed to mount in your mill spindle. If you have not had a chance to read my previous articles, please take a look, you may find them useful for your next project. It produces high torque even at lower speeds. Wellthis discussion, will not be about converting MF70 to a CNC machine. You must log in or register to reply here. He said they had ways to fix things within a few microns, and they did some more tweaking of some sort. I would be looking at as small used Swiss machines like Sixis but that adds a zero to the price. Stable cast iron base. I did see one 60K RPM unit that actually claimed to have angular bearings (7000 and 7002 type)- most just use regular deep grove units. Chronos Ltd (Engineering Supplies) 11-011, 1/5 HP, 8000 to 15500 rpm, OD spindle only in Hialeah, FL, USA. Size 72 x 64 x 38mm. 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Extras I bought with the MF70 were: A set of 1mm, 2mm, 3mm cutters (Proxxon 27116) A precision steel vice (Proxxon 24260, PM40) The cutters were essential. Presumably, it is possible to remove the standard motor and the coupling? There appears to have been at least 3 different designs of coupling used. Sorry to hi-jack your thread, but it seems a good place to post this CNC conversion: Edited By Michael Gilligan on 22/11/2020 18:26:47. While making the whole spindle lock, stock and barrel would be too time consuming, it could be made from a cheap collet holder with only some minor modifications. The accurate milling machine for delicate projects. Get a Free Quote from Wood Group Turbopower LLC and other companies, Aircraft landing and braking systems, Aircraft passenger restraints, Aircraft fuel tanks and systems, Aircraft equipment, Aircraft hydraulic systems, Exterior aircraft lighting, Interior aircraft lighting, Aircraft windshield wipers, America's Original Industrial Directory Since 1893, This company is located in the Eastern Time Zone and the office is currently, These costs are an estimate and cannot be used as actual shipping costs. One of the biggest upgrades we discuss is changing the spindle to utilize the ER11 collet system. Wow. I just eyeball or use a spirit level, because I thought it was the work piece that needed to be level !! They've put two sets of bearings in and can't get it to run without overheating! Also do not forget that the collet nut wrench and the the ER8 collets are equally important as the spindle itself. This set also fits the mill/lathe systems PD250/E and PD400. This page will give you info on the second bearing listed: Thanks again for all the insight. ]There may be more stupid ways to do things, but method of holding two simple parts together must be high on the list. A friend bought a 40K RPM air turbine unit to mill 0.030" slots in copper. with 1/8" shank for PCB routing. Well, well well As promised to all of you, who accepted and participated in the vote. The MF70 came fitted with an European 2-pin plug. Table 200 x 70mm with X-Y travel of 134 and 46mm respectively, with vertical travel 80mm. Thank you very much for the answers. MICRO Milling machine MF 70 is also available as CNC-ready version (NO27112). If so, why not make a coupling withe the machine end duplicating the standard coupling, and the motor end machined to suit the new motor. It may not display this or other websites correctly. And other! I've probably cut around 1,000 sheets of material, mostly melamine, some plywood and MDF, plus hours of solid wood machining. With fastening bores for horizontal and vertical mounting and suitable slot nuts and fastening screws for mounting to the MICRO Milling machine MF 70 and the MICRO compound table KT 70. A MF70 milling machine made by Proxxon is an useful piece of equipment and even more so when converted to CNC. I am still trying to find it. it took a bit to take it apart but you just have to solder two wires. Or maybe it requires a "one off tool". Also great prices for European and Worldwide shipping on all Proxxon tools. The MFF 70 miller from Proxxon, is a small but precise miller. I have purchased a number of Proxxon tools recently and while they are not the cheapest I have always found them to be precise and well made. What is the maximum shank size you can use? So in the past 18 months I have been making and selling parts I have made on the machine. Might be worth looking to see if your job is similar. NO 27 116 3 pieces The maintenance free brushless special motor has variable speed pre-selection from 10,000 to 30,000rpm with a digital speed display. On this topic is it better to proactively replace bearings or just wait until they begin failing? For vibration-free work at high speeds. Supplied with three ER11 collets; sizes 2.5 3 and 6 mm. I've been waiting to reply until I had a chance to hook the spindle back up. A few negatives there. Take a piece of printing paper. The slot fits the adjustable fence of the drill stand MB 140/S and bench drill TBM 220. Looking at your pics that is a bad extrusion.The issues you are experiencing are normally attributed to the column not being 90 to the baseplate or bad machining of the xy table base. Normal mill spindle speeds broke endmills, but worked fine at 40K. check out the. Now you can measure the old spindle so it can be known, how long (from a rear retaining ring face to the rear face of the new spindle) should the new one be. The table is fitted with 3 T-slots of the 12 x 6 x 5mm MICROMOT norm. http://www.mdaprecision.com/micro-cnc-mill.html, If this is your first visit, be sure to WebDUMORE, No. If the comment about a screwdriver refers to a grubscrew securing the coupling to the machine spindle, Proxxon tightened it, so there must be a way in, somewhere. This is mine: I just respindled mine with a complete high speed spindle. For subscription issues please see THIS LINK. Thanks for the feedback you guys. Weight approx. When the spindle is assembled, runout can be measured. From what I've read, you will need a runout that is < 1/10 the endmill or drill diameter. NO 24 256 Everything sounds and feels perfect, can't even tell its cutting then all of a sudden I hear a rumble and the bit breaks. There are a couple of photos on the last page of this thread: https://www.model-engineer.co.uk/forums/postings.asp?th=166117&p=4. Just to give a ballpark cost amount. Price: Contact Seller for Price. Upgrading a CNC MF70 mini mill spindle to ER11 chuck, steel spindle holder, brushless motor, 3 speeds belt driven for ranges between 0 Eze-lap Diamond Sharpening https://images.homedepot-static.com/catalog/pdfImages/52/52cabd16-11cb-491c-9876-4d4b4165b8c4.pdf, Hello All, I didn't need to cut anything so I didn't bother to warm it up, just turned it on for a minute at 9,000 RPM to check it out. Power feed with set rates would be a good idea but the budget is really far too low for a high quality machine. Please remember the vertical shaft running vertical (drill bit) + chuck / Collet- dial indicator is a must. The thing i that i do not like the Proxxon standard coupling that actually transfer the energy from motor to spindel via some plastic and rubber parts, but i may be forced to use this solution to get up running. 17.98. Shaft diameter 3mm. overview - Can you get the most out of your Proxxon MF70? Supplied complete with stepped clamp blocks of steel. Jim, this is excellent. 2 each of 8 x 10, 15, 20, 25, 30, 35 and 40mm. Precision steel vice PM 40 I was surprised how much different it sounds - much louder and courser. Thanks again for your kind help everybody. Wobble bar or pointer is far good enough - dial indicator does not cost much. You are using the mill like a lathe with the cutting tool in the vise - I would have not thought I that. That is me again, talking about Proxxon MF70 (hope you are not tired). It is far better to change bearings a bit early. Absolute accurate division due to nonius at the base body. The Proxxon Universal milling system UF/E is a powerful, highly accurately machined motor unit. Bad Behavior has blocked 18667 access attempts in the last 7 days. Unit 2 Southfields Road, No way could I see how to remove the top part from the base, but it turned out that there was a tiny Allen screw holding both together, which could not be reached by a standard Allen key, no room to get the key in place. Bore of 11mm (for processing longer spindles in a vertical position). Group Build, English Cutter Half Hull P.o.B. When the final length of the new spindle is established, the cylindrical surface on the rear end can be cut. Martin. German Tools (CHRONOS) A) The Proxxon MF70 (c. 287) Spindle speed: 5,000 - 20,000 rpm. Carriage for the UK Mainland is FREE on all Proxxon orders over 100 - typically arriving within a few days. At the moment, I cannot find the youtube video where the guy actually shows how to fix it by reinforcing the aluminum table from the back. Here I am to explain what the heck this tool is for!! JavaScript is disabled. Here I am folks again, and as usual, my post starts with the question. Proxxon MF70 - ER11 spindle upgrade as a direct drop-in? I know this is a very old thread, but it came up when I was searching around for a solution to my spindle problems and I thought I'd share my experience: thats about how long mine lasted. The triple ball bearing spindle guarantees high concentric accuracy and smooth running. This upgrade opens the possibility of using endmills of larger By GeoCasa in forum General MetalWork Discussion. Having raised the cutter I went back to the start to make a second cut at 0.2mm deep. the fans are only about 18.00 if you just buy the fan and run the wires. The slide fit with bearings is the same (could be improved). Well, miracles do happen. However TBS provided (without charging extra) a UK plug that snapped onto the European one and converted it. He came here seeking help, and calling him an idiot isn't going to help anyone. Free from play, readjustable dovetail gib in all axes. WebMICRO Milling machine MF 70. There appears to have been at least 3 different designs of coupling used. 132 photos. I have an MF70 and like it but if drilling is your primary objective then I would look elsewhere. The collets will hold 3.2mm maximum diameter and the spindle speed is high so anything over about 2.5mm results in a horrid squealing noise because the lowest speed is still too high. Somehow, I think he might take offense to that. Ground in pairs For adjusting work on drilling machines, lathes and milling machines. Posts: 5851 Switzerland Proxxon MF70 on:December 17, 2017, 12:31:16 PM I decided that I would find a small (very small) mill useful in addition to my Stable grey-cast iron machine base, vertical guide and compound table. Does anyone have any experience of this little mill? Click THIS LINK for full contact details. I decided that I would find a small (very small) mill useful in addition to my Hobbymat combined lathe and mill. Proxxon Tools (Best for Proxxon) Enables lowering into non-bored work pieces. Dunstable, LU6 3EJ Length 100mm. In my case it was about 0,01 mm, but the main source of runout will be a collet. white-space: pre-wrap; Refine: Viewing 1 - 19 of 19 matches. Spindle speeds 5,000 - 20,000rpm. I think I will try to do what you suggest Howard, making a coupling where i dublicate the standard coupling. If you are producing parts and not scrapwhy fix anything?? Other than those on Amazon, which were mixed btw, everybody is generally happy with. David: I truly hope you get a proper resolution to this as there is little doubt in my mind that the repair job was not up to par. By continuing to use this site, you agree to our use of cookies. If you take the machinist square, at three different points: both ends and the middle, you might notice the gaps. EVERYWHERE I look I see good reviews of this machine. This was quickly sorted with an M6 washer. Both axes are fitted with adjustable dovetail slides. Location: Hialeah, FL, USA. For work pieces up to 20mm thickness. Hope to get some good leads from the more experienced users! Certification: ISO 9002:1994. Business Activity: Manufacturer / Exporter / Importer. I think they run 10k rpm which I think is sufficient if you are careful with feeds. Employment Opportunity / RFQ (Request for Quote). Parallel accuracy 0.02mm. Due Many thanks, Jim. Cutter clamping in MICROMOT system collets. For grey-cast iron, hardened cast iron, steel, cast steel, brass, aluminium, glass, plastic and carbon fibre. Machinery Manual, Brochure / Photo Archives, SolidCAM for SolidWorks and SolidCAM for Inventor, Mechanical Calculations/Engineering Design, Mass finishing equipment/media/strategies, 80/20 TSLOTS / Other Aluminum Framing Systems, General CNC Plasma / Oxy Fuel Cutting Machines, Plasma, EDM / Other similar machine Project Log, General Laser Engraving / Cutting Machine Discussion, Laser CO2 Tubes, Diodes, RF and Power Supplies, Printing, Scanners, Vinyl cutting and Plotters, Commercial Products / Manufacturers Support Forums, Machine Controllers Software and Solutions, General CNC (Mill / Lathe) Control Software (NC), Additive Manufacturing / 3D Printers and 3D Scanners, General 3D Printer / 3D Scanner Discussion, 3D Printing / Scanning Software and Hardware, Metalworking- / Woodworking Tooling / Manual Machining, Musical Instrument Design and Construction, More infomations about the cookies and further configurations. The cutter broke. Also accurate tooling is not cheap, collets are going to be 50 bucks each etc. Group Build, English Cutter Half Hull P.o.B. Glanze (Lathe Indexable Tooling) That's not the sort of story I expect to hear about PDS. Good day everyone, I was wondering if the ER11 spindle upgrade on a Proxxon MF70 is a direct drop-in upgrade? Stable grey-cast iron Welcome! Milled from steel for precision. Great tutorial Jim! Die-cast aluminium arm housing, with 24-pin special motor (balanced). Set consists of 2 stepped blocks and clamping jaws threaded bolts, screw nuts and slot nuts of the MICROMOT standard. It looks as if a hybrid coupling to match motor to machine is going to be the method used. Correct, Jack! I guess it could be improved by a more accurate collet holder, but for a few euros spent one can not expect the best. You can also get in touch about this website, advertising or other general issues. I get worried when I see an advertised runout of 0.01 to 0.02 mm. For a better experience, please enable JavaScript in your browser before proceeding. A MF70 milling machine made by Proxxon is an useful piece of equipment and even more so when converted to CNC. As the old spindle and the collet holder diameter is equal (10 mm), no modifications to the outer diameter surface has to be done. Made of high-alloy, hardened steel (58 - 62 HRC). I took this off and there was negative clearance between the end of the handle that should have been the thrust face and the thrust face on the top cover. Tungsten milling cutters, separately Good day everyone, I was wondering if the ER11 spindle upgrade on a Proxxon MF70 is a direct drop-in upgrade? Motor power: 100 watts Weight: 7Kg It looks like a very interesting machine, although the reviews seem rather mixed. It has been very good to me as a learning tool. Die-cast aluminium arm housing, with 24-pin special motor (balanced). To determine how much it needs to be cut of the shank, cut a groove for a retaining ring as close as possible to the front of the holder. While I use it mostly for machining graphite for EDM electrodes, I found that the tool runout is much larger than it would be acceptable for usage of endmills or drills with a very small diameter. I don't know anything about this machine, but I wouldn't expect too much from it looking at the photos and price. This WebPROXXON 3 Piece Tungsten Milling Cutter Set. Proxxon MF70 spindle upgrade Introduction. Tungsten milling cutters Education - Teachers and Students Hangout. 4. :cool: This time, before the actual tutorial, I'd like to make a little quiz and see the responses. The Proxxon MF70 fitted the space requirements but reading up on it there were some potential problems: The next trial was milling a couple of flats on a length of 4mm brass rod (to make a replacement tang for a belt buckle). Bearings will start heating a long time before showing any other signs of wear, in my experience. I don't know why this problem existed, there didn't seem to be anything missing according to the parts list, The next test was with the 1mm dia.
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