climent Report post Posted December 15, 2020 I have a needle positioner that came with a CSM1001 to be installed in my 206rb machine, but the screw that fits the main axle by the hand wheel does not fit the coupler in the positioner. Does anyone know what screw I should purchase to install it? Thanks! Quote Share this post Link to post Share on other sites
Constabulary Report post Posted December 16, 2020 I´d grind or file gown the rim of the crew Quote Share this post Link to post Share on other sites
shoepatcher Report post Posted December 16, 2020 I agree with Constabulary. I have done that in the past. downsize the dia. of the head of the screw to fit in the synchronizer head. glenn Quote Share this post Link to post Share on other sites
climent Report post Posted December 16, 2020 4 hours ago, Constabulary said: I´d grind or file gown the rim of the crew The screw is not long enough. I would also have to cut the coupler. I'd rather try to obtain a new screw that is long and fits, before taking the saw and the grinder out of the tool box. But in the end, i will have to do what's necessary. /shrug Quote Share this post Link to post Share on other sites
Gregg From Keystone Sewing Report post Posted December 16, 2020 Thread Pitch and Dia. 17/64-24 I use Singer part number 200006 screw for mounting the hub onto the top arm shaft end. Quote Share this post Link to post Share on other sites
climent Report post Posted December 16, 2020 The one I found costs $2 to purchase, and $35 to ship. Oh, well. Quote Share this post Link to post Share on other sites
robslc Report post Posted March 30, 2022 Reviving this old thread, hope that is ok!? I am in the same boat. New to registering on this site (but have lurked for a while) and to a mint 206rb-2 and I am having the same problem, 17/64-24 is such an odd size screw... I have yet to take the balance wheel off and inspect what is going on but it seems from the parts list that the set screws hold the balance wheel on the shaft, what does part #50 have to do with adjusting the balance wheel? Why is the screw split? I am thinking about drilling and tapping that hole to either 5/16 or 7mm, is that a bad idea? It sure is difficult to find Singer part #200006 or Consew #10646 (hook saddle screw for Consew 744rXX or 745RXX) Quote Share this post Link to post Share on other sites
shoepatcher Report post Posted March 31, 2022 Do not retap hole. I myself would take a Dremel and enlarge the opening in the synchronizer clamp so screw fits. I have done it in the past. Dremel with drum sander attachment. The clamp metal will be softer than the screw head. The screw is spit so that it holds snug in the hole in the shaft. It will take a little work. Have a micrometer near you to check the screw diameter and hole in clamp. glenn Quote Share this post Link to post Share on other sites
CowboyBob Report post Posted March 31, 2022 17 hours ago, robslc said: Reviving this old thread, hope that is ok!? I am in the same boat. New to registering on this site (but have lurked for a while) and to a mint 206rb-2 and I am having the same problem, 17/64-24 is such an odd size screw... I have yet to take the balance wheel off and inspect what is going on but it seems from the parts list that the set screws hold the balance wheel on the shaft, what does part #50 have to do with adjusting the balance wheel? Why is the screw split? I am thinking about drilling and tapping that hole to either 5/16 or 7mm, is that a bad idea? It sure is difficult to find Singer part #200006 or Consew #10646 (hook saddle screw for Consew 744rXX or 745RXX) We have Singer #200006 screw in stock. Quote Share this post Link to post Share on other sites
robslc Report post Posted March 31, 2022 (edited) Hey Glenn and Bob, thanks for the replies! I unfortunately bought the Consew csm1001 servo motor package, as you guys probably know every part is made as cheaply as possible, including the softest screws on the planet, the phillips heads strip if you look at them wrong. The positioner and round fitting that attaches to the balance wheel are now 99% plastic. The round fitting and the part of the positioner (with the set screws) that holds the fitting seems like it's made out of good nylon (possibly glass reinforced) and the tolerances are good... The existing screw is still too short even though it now fits inside the round fitting. I'll be calling Toledo today for the 200006 screw and I'll be sure to pad the order with needles and thread and when this cheap motor dies, I'll be calling them for the Family Sew FS-550s motor... Edited March 31, 2022 by robslc Quote Share this post Link to post Share on other sites
Proto1 Report post Posted March 21, 2023 Where can I buy the synchronizer adapter and or mounting hardware. I already have a syncronizer. Also is the outer diameter of the adapter all the same? My synchronizer inner diameter is 0.875" Quote Share this post Link to post Share on other sites
DonInReno Report post Posted March 22, 2023 I’d be very surprised if anyone lists that for sale as separate piece, but there are probably a hundred synchronizer kits that haven’t been used and are on shelves free for the asking - I had one, but tossed it thinking nobody would ever need it. If you keep asking around someone will have it. Quote Share this post Link to post Share on other sites
MtlBiker Report post Posted March 22, 2023 Interesting... I have a 206RB-5 and also a Techsew 2750 Pro and what I miss most on the Consew is a needle positioner. I've gotten used to it on the Techsew and I love it. What's involved in adding a needle positioner to my machine? New motor? Difficult, expensive? I mean I don't HAVE TO have it, but it would be nice. Quote Share this post Link to post Share on other sites
