bridgeport backlash adjustmentwhat are the dates for expo west 2022

Instead it locks a finely threaded ring that when turned will push back one half of the nut and tack up the wear. As the one piece feed nut wears, and backlash grows, the feed nut can either be replaced (a new one costs about $36), or split into two pieces. Here is the thing, gibs are meant to be adjusted to compensate for wear (and minor abuse). Educated Nut It could be the adjustment is all gone. Eliminate milling machine backlash: Splitting a Bridgeport feed screw I have been rebuilding Bridgeport's for over 40 years and have never seen the casting broken or the screw broken like that. All Rights reserved. They behave properly on milling table and ways, so I'm content for the moment. Help with Compound rest backlash on Logan Powermatic, How to adjust Bridgeport vertical mill turret. For a better experience, please enable JavaScript in your browser before proceeding. Replace Clock Spring A quick pass with the deburring tools cleans the threads up. 4-inch x 1-5/8-inch PFG Stones Kinetic Precision. Typically, backlash is adjusted by tightening the feed nut retaining screw. I would take it apart to see whats happening in there. A short section of a file that has been stoned down so only bits that project between the teeth get cut, it just skates over everything else. By jimmyjolly in forum Bridgeport / Hardinge Mills, By ss_again in forum Bridgeport / Hardinge Mills, By mrscheider in forum Taig Mills / Lathes, Torq cut backlash compensation adjustment, Education - Teachers and Students Hangout. A new nut and screw would likely be the next step, but it's unlikely an old machine would benefit much from that without a complete rebuild. Series 1, 2J Head It feels smooth to the touch. Quill Feed Handles I have the instructions to reduce backlash, but seem unable to turn the adjustment screw any further (longitudinal movement). Basically you cut the nut in half and then face the ends off in a lathe to clean them up. Bridgeport - Advice on adjusting backlash on lead screw 2023 Copyright Practicalmachinist.com. The long edges are also precision ground square to the major surfaces and flat. Vari-Drive Rebuild Kits Since I had my X ballscrew repaired I now need to adjust the backlash. Another milling machine backlash question. Series 2 (4 HP) Hugh Gilhespie: 20/11/2011 10:05:37: 130 forum posts 45 photos: Hi Roy This link has a very good discussion on adjusting the backlash on a Bridgeport. I appreciate all the advice and information. It has a 2J head and chrome ways and seems to be in excellent condition. . Operator reported that the backlash was getting severe before it happened. The longitudinal feed nut screw is threaded on the lead screw. With more than 10.6 million unique visitors over the last year, Practical Machinist is the most visited site for metalworking professionals. The contents of Rifleshooter.com are produced for informational purposes only and should be performed by competent gunsmiths only. Bridgeport Backlash Screw breakage - Practical Machinist I haven't tried the other direction, but have about the same backlash. 2003-2023 Industrial Control & Automation. There is about .020 of backlash on the table lead screw. You accept the use of cookies or other identifiers by closing or dismissing this notice, by scrolling this page, by clicking a link or button or by continuing to browse otherwise. Wear, or the transition of it from wear to unworn happens over a distance. Educated Nut I updated another bunch of users stuck on email notifications. Same deal with the locking screw and the adjusting screw, then put it back together. Bridgeport / Hardinge Mills > Torq cut backlash compensation adjustment You are using an out of date browser. It was a tracer mill made in 1979 but is used only for manual now. Do you have any experience with precision ground flat stones such as these ones? It must engage the key located in the feednut bracket. Acme leadscrew supplier? The mill is a 1.5 HP Bridgeport Series I Turret Miller BRJ2. When I get a diamond wheel for my SG, I'll touch them up. Way Wiper Kit Top Adjusting Bridgeport backlash? A old fashion way to stop a BP spindle from clanging with backlash, is to mount a snubber made of cork. PART-2 CCI 200 v CCI 400, Indoor Optical Training Aid (I.O.T.A.) by Rich_Carlstedt Wed Jan 04, 2006 11:42 pm, Post You are using an out of date browser. Employment Opportunity / RFQ (Request for Quote). You have two options. I have loosened the small screw, and have attempted to turn the larger screw clockwise (to lessen backlash), but it doesn't turn any further. Micro Feed Trip Assy & Quill Removal Employment Opportunity / RFQ (Request for Quote). BRIDGEPORT PARTS The original nut only has one slot in the side to allow the nut to squeeze together, so there isn't much adjustment that can be made. The casting had a chunk broken out of it at the same spot but I'm pretty sure it was on the X, not Y, axis. I had new nuts installed on one of my bridgeports among other things. That's wear. I cut the brass nut the rest of the way through and the adjustment worked fine. Table Screw Backlash Adjustment Cross Feed Screw Backlash Adjustment Gib Adjustments 6F Power Feed Wiring 8F Power Feed Wiring Bridgeport Power Feed Checkout Servo Repair Policy. Order lid separately. I love my Bridgeport milling machine. BRIDGEPORT SPINDLE BEARINGS - The Home Shop Machinist & Machinist's Newall It may not display this or other websites correctly. by Harold_V Wed Jan 04, 2006 3:12 pm, Post It turned about a quarter turn and is not moving. It has a 2J head and chrome ways and seems to be in excellent condition. How, other than visual inspection, can I tell or measure what condition they are in? How much did it set you back, if you don't mind sharing? 49" Rolled Thread Ball Screw Kit for machines made by Hardinge without Bridgeport Power Feed, 36" Rolled Thread Ball Screw Kit for machines without Bridgeport Power Feed, 42" Rolled Thread Ball Screw Kit for machines without Bridgeport Power Feed, 42" Rolled Thread Ball Screw Kit for machines with Bridgeport Power Feed, 48" Rolled Thread Ball Screw Kit for machines without Bridgeport Power Feed, 48" Rolled Thread Ball Screw Kit for machines with Bridgeport Power Feed, Precision Bearing Set- 1 Set required per axis, If Javascript is disabled in your browser click here, CALL US: 1-888-398-4740International: 305-414-8942, Copyright. by dj046 Wed Jan 04, 2006 7:36 am, Post Handle turning, no movement either way. Do a web search on the splitting a Bridgeport nut. Right Angle System If you can please give me a step by step instruction it would be greatly appreciated. Dont pay $8 on Ebay. Also some viewer appreciation. The rest of the machine is put back together and the back lash is adjusted. Bridgeport Power Feed Checkout You may have to redo this after a bit of use (several times) as components settle into place. Sales & Specials, Motor Removal Only if the nut fails would I worry about it if it was my machine. EDIT -> May 8/23. I was able to get backlash within spec easily with this arrangement. Getting everything to line up isnt that bad. Any advice will be greatly appreciated. Any help would be appreciated. We use cookies to provide visitor's with the best possible experience. Try to login if you are stuck. Setting the backlash on my Bridgeport? Replace Clock Spring I have tried moving handle back and forth while doing it which didn't help. If by the "pretty deep grooves" you are referring to what I think you are referring to, these are put in by the manufacturer to assist with the dispersion of lubricating oil. Bridgeport leadscrew adjustment. | Model Engineer I finally picked up a Bridgeport mill. Already have a Shop.Hardinge.com account? Clock Springs Brian Measuring backlash is easy with a digital readout (DRO). Rebarrel a Remington 700 without a lathe: McGowens Remage barrel conversion. Your Source for Bridgeport Parts, Mill Accessories, and Servo Power Feed Parts and Service. I looked by eye and didn't notice much but should see just to be safe. DIGITAL READOUTS Way Wiper Kit Replace Collet Alignment Screw The bronze longitudinal feed nut needs to be unscrewed from the leadscrew. Table Screw Backlash Adjustment Comment. The backlash adjustment on my Long Chang BP clone is better than the original. I bet the parts you make will never know the difference. You can either replace the nut which cost about $30 plus shipping or you can split the nut assuming it hasn't been already. Post Cancel. You dont want to drop the washer head screw inside the machine. Out of curiosity how do you take out end play? Vari Drive Repair Kits Adjusting Bridgeport backlash? Account Upgrades | Donate to Support the Forum! Another method is to cut another slot near the original slot in the side but 180 degrees from the original slot. I checked and at the extreme ends vs middle and the backlash is within .001 difference and looking at the screws they surprisingly seem to be in excellent condition too. Mill Heads Servo VFD PLUS Package Did you put an indicator point on the end of the lead screw and check for end play? When I tightened the feed nut retaining screw, I was only able to reduce backlash to .030. Servo Precision Drills Backlash with a CNC is the same as taking a screw and threading a nut on to it. if the wear occurs over 10" and it is a 3 inch part, its effect is somewhat reduced. Already have a Shop.Hardinge.com account? Evaluating bridgeport ways and what to do about them For a better experience, please enable JavaScript in your browser before proceeding. T-Slot Fillers/Cleaners Not the lesser straight lines. Im happy with the repair and the machine is ready to work! Electronic Repair Series 2 (4 HP) KWIL: 20/11/2011 11:33:35: 3654 forum posts 70 photos: Roy, More infomations about the cookies and further configurations. Replace Collet Alignment Screw 2. The only . No ETA right now. (Chaski Railfan), Favorite Places to Visit In Your Area & Upcoming Events, Site Software Q&A and Maintenance Notices. Customizing a Ruger Mini-14, Removing stripped and sheared screws from a rifle, Project Guns- Gunsmithing articles and posts, Bridgeport leadscrew assembly can be found here, Remington 870 Tritium Rifle Sight Installation, Accuracy testing a 16 carbine: Daniel Defense Hammer Forged Barrel, Building a Custom 308 Precision Chassis Rifle- PART 3- Cutting the chamber, final assembly and test fire, Ruger Precision Rifle Suppressed Load Development: Hornady 147 ELD-Match and H4350 with THUNDER CHICKEN, Remington Model Seven (Model 7) Versus The Model 700, 1911 Rear Sight Installation (Novak style cut), Modular Driven Technologies (MDT) HS3 Chassis Review: Initial Thoughts, Does primer size matter? OVERVIEW How backlash can be corrected with software and hardware. BridgePort produced several varieties of Bronze Nuts. BACKLASH ADJUSTMENT TOOL - shop.hardinge.com I am sure this has been dealt with many times on the Practical Machinist Bridgeport forum, and on the Yahoo Group for BP. 4. Drawbars Servo Power Feeds Josh is working on it. Vari Drive Repair Kits ACCURACY VS. Learn more about us. its never required to sub thou work and usually with a few thou is good enough, of course depending the drawing and use etc. I called H&W Machinery Repair in Fort Wayne, Indiana. If that is the case could it have been installed incorrectly and if so what can be done to check/fix this. Re-install and snug up just shy of binding while allowing allowing free motion. Photos of the y-axis ways and gib. If Javascript is disabled in your browser click here, CALL US: 1-888-398-4740International: 305-414-8942, Copyright. Vari Drive Repair Kits. SERVO PRODUCTS CO. Lubricants Adjusting a Bridgeport downfeed engage gear - resolved, lathe cross-slide backlash adjustment idea, Another milling machine backlash question. DIGITAL READOUTS When I noticed a small jump in my table during climb cutting operations I figured something was wrong. WHAT IS BACKLASH AND HOW TO CORRECT IT - MachMotion There is a bit of surface rust/patina on the saddle ways. Servo VFD PLUS Package Ballscrews JavaScript is disabled. 1. Bridgeport Mill - adjusting backlash - Google Groups What is the next step to reduce it? by dj046 Tue Jan 03, 2006 6:16 pm, Post Quill Feed Handles Vari-Drive Rebuild Kits. remove the four 3/8" SHCS holding the handle and bearing carrier to the table, and crank the handle so that the leadscrew unscrews from the nut to let you get at the nut adjusting screws. I can see this forum is going to be a great asset during (and after) my learning curve. Scrapers tool. BRIDGEPORT PARTS What is the best way to deburr the gibs and ways without removing too much material? They suggested that I split the nut I had on the machine instead of replacing it so that is what I did. Target is the latest company to adjust plans for marketing supportive of the L.G.B.T.Q. The recommendation is to reduce it to 4-5 thousanths. When I push the table in the opposite direction, the backlash is displayed. Notice it is one piece and slotted in the center. Electronic Repair In case of sale of your personal information, you may opt out by sending us an email via our Contact Us page. This website or its third-party tools process personal data (e.g. Full Sized Railroading! Try logging in now with your password. community after it faced backlash from some customers. Cross Feed Screw Backlash Adjustment - Bridgeport mill replacement parts - Industrial Control & Automation CALL US: 1-888-398-4740 International: 305-414-8942 Search: Parts/Accessories BRIDGEPORT MANUALS Series 1, J Head Series 1, 2J Head BRIDGEPORT PARTS Series 1, 1 1/2 and 2HP Bridgeport 6F/8F Electronic Power Feeds Vari-Drive Rebuild Kits BRIDGEPORT MANUALS Bridgeport Ballscrew Kits - Rolled Thread and Precision ground ballscrews. I'm in the camp that says clean up all the chips, get rid of the burrs, and use it to make stuff. If you are the cheap (I mean thrifty) emery paper and any flat surface (including the wifes counter as long as she doesn't catch you) 300, 400 and 800 grits. Thanks Josh - BTW this is a volunteer forum so SLA's are just best effort. VARIABLE FREQ DRIVES Prices and offers are subject to change without notice. I taped the screws to the end of a screw driver and it worked. Crank Yanker I'm assuming he means the deep curvy lines that go thru the oil weep holes. See pics. If you set for minimum backlash in the middle, it will bind at the ends of travel. Regards, Andrew. by Jon Elso Thu, 27 Jan 2005 03:33:00 > Got a late 60's BP in great shape but needs a tweak to tighten up the > table backlash. Backlash and Gibb Adjustment on Bridgeport Mill Halligan142 51.4K subscribers Subscribe 78K views 6 years ago Adjusting gibbs and backlash on the Bridgeport. Mill Heads Servo Precision Drill Parts Login Series 2 (4 HP) SERVO PRODUCTS CO. Servo Power Feeds. There is about .020 of backlash on the table lead screw. Subtract this value from what is in the machine. To find out more about the categories of personal information collected and the purposes for which such information will be used, please refer to our privacy policy. Ballscrews Register for the worlds largest manufacturing technology forum for free today to stay in the know. You have to take the right end bracket off, and then remove the*** from the left side, with it's bracket. Series 1, 1 1/2 and 2HP Adjusting the Backlash on the X&Y Axis of the Bridgeport by dj046 Thu Jan 05, 2006 5:05 pm, Post Phase Converters You accept the use of cookies or other identifiers by closing or dismissing this notice, by scrolling this page, by clicking a link or button or by continuing to browse otherwise. I realize this is an old machine and expect to learn about the limitations/idiosynchrocies it has. http://www.practicalmachinist.com/v-mills-lathes/y-axis-bearing-question-212241/. Adjust gib in a like new machine with little wear to give a reading of 0.0005 (note, Fadal recommends 0.0003, . by dj046 Tue Jan 03, 2006 9:07 pm, Post Visual inspection of the ways is the best way to look at things. You must log in or register to reply here. As long as the ways don't have burrs they will do fine for hobby use. Practical Machinist is the easiest way to learn new techniques, get answers quickly and discuss common challenges with your peers. Bridgeport 6F/8F Electronic Power Feeds. All rights reserved. T-Slot Fillers/Cleaners After Backlash, Target Becomes Latest Brand to Shift Pride Marketing Discussion on all milling machines vertical & horizontal, including but not limited to Bridgeports, Hardinge, South Bend, Clausing, Van Norman, including imports. If your lucky just the head of the screw pops off, unlucky, and you need to replace the feed nut bracket. Clean, ensure they are burr free, same for the ways (use a light touch here). . This is a Bridgeport 6F power feed. They also told me, they will often see old machines with backlash in excess of .100! Drawbars BRIDGEPORT PARTS. All content Copyright 1998-2018 Rifleshooter.com, FTC disclosure: some links on this site are monetized, The A-Team Mini-14? I know how to adjust backlash out of it but I am unable to get the screw to tighten up inside. You must log in or register to reply here. McGowen Remage Barrel Review: Spoiler Alert- It Shoots! by Bill Shields Wed Jan 04, 2006 9:35 am, Post I have the instructions to reduce backlash, but seem unable to turn the adjustment screw any further (longitudinal movement). Where did you find a BP in the Calgary local? I have about 30 thousands backlash. Does it all have to be "on the job", or can you recommend some reading or exercises for me? hi Ian, yes I got what you meant, I was saying overall the problem he has is wear. Milling pressure is best resisted by the fixed jaw. Does anyone have the procedure to adjust the backlash compensation torq cut 22 with DX32 control? The long grooves in the gibb are from trapped swarf. The Model PFG-4 nominal dimensions are 5/8" thick x 1-3/4 x 4 inches. I called H&W Machinery Repair in Fort Wayne, Indiana. I've run them with 5X that. To learn more, please refer to the cookie policy. Gib Adjustments Clean, ensure they are burr free, same for the ways (use a light touch here). Power Drawbars Adjusting a Bridgeport downfeed engage gear? Cross Feed Screw Backlash Adjustment I simply push the table in one direction and zero the DRO. Adjusting a Bridgeport downfeed engage gear? If you really can't get in contact us on facebook or if you know a forum member get them to ask us. I'm particularly worried about the pretty deep grooves in the gib. Photos of the x-axis. 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Btw this tip was given to me by Gerry from Condor who rebuilds bridgeports and makes his own nuts. There's a big head screw in exactly the same place as on a BP but it doesn't adjust the backlash directly. 12. How do you adjust backlash on BP Y-axis. I've read it could be at end of it's adjustment when it will not go any further. by Ralph_Monroe_Mi Wed Jan 04, 2006 9:34 am, Post C39C7043-76E7-4702-AFB7-1497A5F8D11A.jpeg. Nothing to worry about they are supposed to be there! Register for the worlds largest manufacturing technology forum for free today to stay in the know. Posts, alerts, and anything involving email like signing up or password changes are having problems but not for everyone or everywhere. To learn more, please refer to the cookie policy. It was a tracer mill made in 1979 but is used only for manual now. Series 1, 1 1/2 and 2HP Replace Drive Belt Clock Springs Backlash Adjustment Nut - shop.hardinge.com I need to remove the two screws (I couldnt focus on them very well) from the feednut bracket. Servo Precision Drill Parts #1 I finally picked up a Bridgeport mill. 15. How temperatures, speed and vibration contribute to backlash. That would suggest to me that the wear is considerable and the adjustment is at the extreme. It turns out my Bridgeport milling machine had about .045 of backlash in the x-axis. Repeat at the other end of the saddle. Now sweep the circle with a dial indicator. Bridgeport ball screw adjustment - Practical Machinist If the backlash is 0.40 over the entire screw, it's the feed nuts; if it's say 30 at the ends, and 40 in the middle, then you can get it back to about 10 in the middle by replacing the nuts, or cutting them in half, or simply adjusting them.

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