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Plan for chuck plate please

Lionel All Messages By This Member #54637 Hello SL community. I am looking for a detailed and dimensioned plan for the jaw support, the chuck plate # 1001/01 and # 1002/01.. and especially with the detail of the holes to be drilled for the M4 screws Thank you very much, Take care of yourself and your loved ones, Lionel ? ? -- Lio, France - Unimat SL x 3
Unimat Matt All Messages By This Member #54645 Hello. I found this image. Doesn't show all dimensions though.? bad580fd11aaf5180796c7cc90e887b1.jpg
pat goodyear All Messages By This Member #54650 There was a guy in Canada I think that had a bunch of new old stock face plates for both 3 and 4 jaw chucks. ?I bought 2 of each. I can try and dimension hem out.
Edward Samsen All Messages By This Member #54651 There is enough there to do the job Ed
Lionel All Messages By This Member #54653 Hi ;-) Thank's Matt and Pat I found this photo in the old forum , but il lacks a very precise essential dimension : the diameter of the centers of the holes (Red arrow)? , one for 3 and one for 4 jaw chucks . Here i tried to mesure (with a blow on a ball on the paper placed on the support, with an Euro coin as a reference - diameter = 23.16mm), but i find little gaps with each measurement ... For others dimensions, it's good ! A friend is making these peices (on a big lathe) for my SL : here is the progress : > Missing the tapping holes ! Have a good day, be save (here the outside life has stopped, totally..., Very strange...) Thank's ! -- Lio, France - Unimat SL x 3
Jim Korman All Messages By This Member #54659 Try measuring across existing features - For example Measure the distance from the outside edge of the flange to the outside edge of the screw, then finding the radius of the screw and of the flange. Using the above I get Screw to flange side - 23.86 mm Flange radius 8.86 mm Screw radius 1.90 23.86 - 8.86 - 1.90 gives a bolt hole radius of 13.1 mm Jim Korman
John Hutnick All Messages By This Member #54660 开云体育 Doesn't anyone known the bolt circle diameter or is it in some file? toggle quoted message Show quoted text -------- Original message -------- From: jk_neus <jimk@...> Date: 03/31/2020 11:29 AM (GMT-05:00) To: Lionel <liolegall@...>, [email protected] Subject: Re: [Unimat] Plan for chuck plate please Try measuring across existing features - For example Measure the distance from the outside edge of the flange to the outside edge of the screw, then finding the radius of the screw and of the flange. Using the above I get Screw to flange side - 23.86 mm Flange radius 8.86 mm Screw radius 1.90 23.86 - 8.86 - 1.90 gives a bolt hole radius of 13.1 mm Jim Korman _._,_._,_ Groups.io Links: You receive all messages sent to this group. View/Reply Online (#54659) \| Reply To Group \| Reply To Sender \| Mute This Topic \| New Topic Your Subscription \| Contact Group Owner \| Unsubscribe [johnhutnick@...] _._ 20200331_100312.1.jpg 20200331_100248.1.jpg
Edward Samsen All Messages By This Member #54661 What about making the backplate fit the chuck snugly and then use a transfer punch through the hole in the chuck.? Your screw holes are now marked.? Drill and tap for M4 screws Ed
Martin P. All Messages By This Member #54662 I can measure tonight. toggle quoted message Show quoted text -----Original Message----- Doesn't anyone known the bolt circle diameter or is it in some file?
pat goodyear All Messages By This Member #54666 So here is how I would do the finish and holes, thread the center with the proper relief. ?Thread it on the spindle, face it square and to fit the chuck recess. ? Put it in the recess then Using a center punch through the chuck locate the first hole, drill and tap it, install one screw, then using a drill bit that just fits inside the threads drill starter holes, remove and finish. ? My chucks that have facing plates have an index recess. ?? pat
Carl All Messages By This Member #54669 开云体育 Hi Pat: As a tool maker we used special center punches called Transfer Punches: Very handy, never hit them hard, just enough to leave a prick. Then I use my 3/4" diameter center punch to enlarge it to a 1/4" crater. Being a nerd, I just had to have more than one set, so I have fractions to 1/2", 1-60 numbers and metric. I don't have the 0.5" to 1" set, yet. Carl. On 4/1/2020 1:13 AM, pat goodyear wrote: toggle quoted message Show quoted text So here is how I would do the finish and holes, thread the center with the proper relief. ?Thread it on the spindle, face it square and to fit the chuck recess. ? Put it in the recess then Using a center punch through the chuck locate the first hole, drill and tap it, install one screw, then using a drill bit that just fits inside the threads drill starter holes, remove and finish. ? My chucks that have facing plates have an index recess. ?? pat
Lionel All Messages By This Member #54673 Thank you very much to all ! -- Lio, France - Unimat SL x 3
Roman Gargulak All Messages By This Member #54675 My 4-jaw chuck has a back plate with 4 holes, bolt pitch circle diameter is 26mm. My 3-jaw chuck has a back plate with 3 holes, bolt pitch circle diameter is 23mm. Screws are M4 Roman toggle quoted message Show quoted text On 2020-03-31 12:01 p.m., John Hutnick wrote: Doesn't anyone known the bolt circle diameter or is it in some file? -------- Original message -------- From: jk_neus <jimk@...> Date: 03/31/2020 11:29 AM (GMT-05:00) To: Lionel <liolegall@...>, [email protected] Subject: Re: [Unimat] Plan for chuck plate please Try measuring across existing features - For example Measure the distance from the outside edge of the flange to the outside edge of the screw,then finding the radius of the screw and of the flange. Using the above I getScrew to flange side - 23.86 mmFlange radius 8.86 mmScrew radius 1.9023.86 - 8.86 - 1.90 gives a bolt hole radius of 13.1 mmJim Korman _._,_._,_ Groups.io Links: You receive all messages sent to this group. View/Reply Online (#54659) \| Reply To Group \| Reply To Sender \| Mute This Topic \| New Topic Your Subscription \| Contact Group Owner \| Unsubscribe [johnhutnick@...] _._
Roman Gargulak All Messages By This Member #54676 开云体育 Forgot to add, the screws are M4x25mm, according to DIN 963 (flat head, 90° countersunk, slotted). Roman On 2020-04-01 12:34 p.m., Roman Gargulak wrote: toggle quoted message Show quoted text My 4-jaw chuck has a back plate with 4 holes, bolt pitch circle diameter is 26mm. My 3-jaw chuck has a back plate with 3 holes, bolt pitch circle diameter is 23mm. Screws are M4 Roman On 2020-03-31 12:01 p.m., John Hutnick wrote: Doesn't anyone known the bolt circle diameter or is it in some file? -------- Original message -------- From: jk_neus <jimk@...> Date: 03/31/2020 11:29 AM (GMT-05:00) To: Lionel <liolegall@...>, [email protected] Subject: Re: [Unimat] Plan for chuck plate please Try measuring across existing features - For example Measure the distance from the outside edge of the flange to the outside edge of the screw,then finding the radius of the screw and of the flange. Using the above I getScrew to flange side - 23.86 mmFlange radius 8.86 mmScrew radius 1.9023.86 - 8.86 - 1.90 gives a bolt hole radius of 13.1 mmJim Korman
Lionel All Messages By This Member #54681 Thank's Roman -- Lio, France - Unimat SL x 3

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