Dave9111

Good idea!

Here are some pictures. The cable goes up through a small hole, slightly larger than 1/16", which was drilled up into the plastic boss. The cable housing (black vinyl covered) simply sits up against the plastic boss. The cable then goes into the backside of the left most hole, comes out the front and then goes into the rightmost hole. A screw and nut was used to clamp the cable to the plastic arm. The screw is smaller than the hole, so both the cable and the screw fit through the hole. I ran the loose end of the cable around to the front and tie wrapped the loose end to the arm so it wouldn't get in the way. I think that is a 10-24 flat head screw. The base of the brake lever was a chunk of scrap steel I had laying around. It wasn't heavy enough, so it skittered around the floor when my foot touched it. I welded a chunk of 3/4" steel to the bottom plate to give it some weight. The tape wrapped around the base was used to create some friction so it stays in place. That is white Gorilla tape (thick duct tape). I did have to lubricate the cable in the cable housing at the brake lever end due to intermittent sticking. I sprayed it with some chain and cable lubricant. The lube got rid of the sticking issue. The servo motor is an Enduro unit I bought off of Ebay. It has a needle positioner. It says on the unit that it is setup for 220 volts, but it runs like a champ on 120 volts with no changes, other than a different plug on the cord. It has more than sufficient power. I have run hundreds of feet of fabric through this machine.

I like the idea of your tilt hand truck! That's a lot better than what I tried!!! I have a hand truck that is aluminum and it converts into a flatbed, but it won't do what your truck does. The kickstand with wheels is really nice. Thanks for the idea!

What would it cost to add a commercially available puller (Racing or otherwise) to a Pfaff 1245 walking foot machine?? An educated guess is ok. Most of the Racing units I have seen have a mechanical geared connection to the machine and the transmission and shafting is quite elaborate and it looks like the shafting might get in the way. It seems like an "electronically geared" connection to the machine should be possible. I've worked on industrial machine control systems that do that. I have a puller which is built into a Pfaff chainstitch machine and it is really nice for longer runs. I have less material slippage issues when I use the puller. It seems to be noticeably better than a walking foot setup alone.

Just a follow up: I did attempt to make a lifting dolley that lifted by the table top. It failed. Turns out lifting from the top requires a rigid frame (heavy steel) which was in opposition to my goals of a simple compact dolley. As I result I put all of my machines on casters. That is the way to go for me. If I need to move a machine outside, I have a small steel top trailer that tilts to the ground to create a ramp. The trailer was built as a rototiller trailer, so it is small, but large enough.

I have been running Dabond 2000 V92 thread as the top thread in a single needle, 2 thread chainstitch machine. I'm running V45 for the bottom threads which seems to work well. This is with the 401 chainstitch, so the bottom threads wrap through the eye of the top thread twice, hence the smaller bottom thread. I want to stick to a bigger topstitch thread for UV resistance since this is for covers, left outside. This has been working ok but the bottom chaining was not entirely consistent. It was like the bottom tension was varying. I decided to buy another roll of thread for the top thread, and I found some A&E Sunstop V92 and decided to try it out. I replaced the Dabond V92 with the A&E Sunstop V92 and my inconsistent chaining issue went away entirely. I made no other changes. The A&E thread is much more pliable than the Dabond. This machine runs without a lot of tension compared to my Lockstitch machine, but I did not expect this. Has anyone else seen Dabond cause issues like this? I think Dabond is just too stiff for use in a chainstitch machine. Unfortunately information on how to run a two thread chainstitch machine seems sparse on the web. Google searches oftentimes come up with nothing. So this machine has been a learning experience! Dave

I have an Enduro drive as well, and saw this after my table was found missing the pedal. I welded a base bracket for a brake lever similar to the one shown in the picture. (Mine doesn't look as nice) I didn't add a cross bar to the end of the lever. It works fine as is. If you look at the picture of side of the Enduro motor/drive unit you will see the nicely milled bracket that holds the cable. Just to the left of that is a plastic boss. I drilled a hole up through the plastic boss from the bottom and threaded the cable into it. Just above that is a hole in the plastic arm. I threaded the cable into the hole from the backside and used a screw clamp cable stop to prevent the cable from slipping back out of the hole. Zero machining was required. It works fine. I have the Enduro drive on a Pfaff two thread chainstitch machine and it works great. The brake cable/lever was a genius idea. And the machining while nice, is not required. I used a chunk of steel and piece of handlebar to attach the brake lever to the plate for the foot pedal. It weighs several pounds so it tends to stay in place. What is really great about this idea is that the pedal is moveable. When I am sewing large panels of cloth for covers (3 - 40ft x 5ft panels in a recent project) I can sit at an angle to the machine to feed the machine and I can move the pedal to suit, which means great pedal control in just about any seat position! How nice! The brake pedal idea is truly genius. Thanks!

I've decided that I'm going to lift the machine via the table top. There is a couple of machines on the web that can do this but they are quite elaborate. I'm going to try and keep it simple. I like the jack simplicity but I don't think lifting from the K leg even at the top is a good idea for me. Reason being that I have one really heavy machine head, and I'm pretty sure the k leg wouldn't stand the strain.

Hoyer lift. Gosh I think my sister in law just sold one from my mother in laws house. Never thought about that. I have looked at some commercial solutions and it seems like the lift has to pickup the table top to go "off road", or off a hard floor. Looking at my machines, that is really the only common pickup point. So I will make something up and share it when I'm done. I'm thinking a 1/2" or 3/4" steel pipe frame, some large air tire casters I already have should make up the bulk of it. A lever mechanism (maybe?) to raise the machine, etc. Or maybe just tip the frame? Thanks for the ideas. I do have a little trailer I'm not using... hmmmm...

I have my share of industrial machines and I sometimes want to move them around both in the shop and outside for a larger canvas job. Sometimes into a box trailer that has a ramp door. I have flat moving dollies, but small wheels don't make rolling easy over uneven pavement. And they don't work at all in gravel or on grass. Yep, off road sewing! I have some large covers to modify and alter and putting the machine in the lawn under a tree can work in nice weather. What do you guys do? This has come to a head since I bought a two thread chainstitch machine and the head is really heavy - well over 100lbs and I want to be able to move it without planning for back surgery. My machines all have the common K stands. On the lighter machines (like a Pfaff 1245), I have mounted casters on the bottom of the K legs. And that works in the shop. But that's about all. Thanks, Dave

Nice! Thanks

This has been mentioned a few times in various message threads regarding the Enduro motors that were/are sold on Ebay. But I just wanted to put this down as a topic for you guys out there who grabbed some dirt cheap Enduro motors as I did a few years ago. I have a few Enduro 1050-2PF, 220 volts, servo motors that I bought off Ebay a while ago. They were dirt cheap on one point. Like $35 each or so?? I have 240 volts in my shop so it was no big deal to run some cords to feed these motors. However some folks have mentioned that these can run ok on 120 AC. I'm setting up a new to me Pfaff Chainstitch machine so I dug out one of the 1050-2PF units and hooked it up. I had to put a plug on the end, so why not try out 120 VAC? It works fine. I tried a wooden hammer handle torque test ( start the motor with a wooden hammer handle forced onto the edge of the V belt pulley ). The motor has plenty of torque at 120 VAC to grind grooves into the hammer handle from a dead start. I belted the machine to the motor and it all works fine at 120 VAC. The display and control buttons are working just fine as well. I have not tried hooking up the needle positioner sensor. That is next. This unit also has a 24 volt solenoid output for a foot lifter. But I probably won't use that. Obviously these motors were designed to operate on a range of input voltages. Why these don't show that on the boxes? I have no idea. Note that I cannot find any laboratory testing approval of any kind (UL, etc) on these motors, the boxes or the paperwork, so make sure you turn them off when you are done sewing. I'm ok with that myself.

I finally got to test the new Groz Beckert Gebedur Titanium needles (134-35, #23 R) on the same machine (Pfaff 1245) with the same material and the needle thread shredding is no longer there. So that fixed the shredding issue. However, comparing the #23 Groz Beckerts to the Innova #22's that I have been using shows that the #23's are a lot bigger. Does anyone have the dimensions of a #22 system 134-35 needle? I don't care if its metric or imperial. I'm wondering if the #22's I have are undersized. I have searched for it, but its not popping up. #22 is stamped on the shanks of the Innova needles. I think Innova is the distributor. The individual packs of 10 only say made in Germany with a small logo. I've had these needles for a long time. Its a 100 pack. The #23 Groz Beckerts are noticeably cutting the threads in the material. The holes made are clearly shredded just a bit. This is on Weathermax 80 outdoor canvas which is a very tight weave fabric. I'm not sure if I should be concerned about that or not. I'm thinking probably not. When I run through two layers of Weathermax 80 with a Polyester binding, there is not noticeable tearing on the binding. The stitches look great. This was when the thread shredding became a real issue. I was occurring when just running through two layers of Weathermax 80, but adding the binding was a killer. The stitch formation also appears to be better with the #23 needles. So you guys were right. The needle was the problem. Thanks for the help!

I did obtain some #23 needles. I now have some Groz-Beckert chrome needles and then I found some Groz Beckert Gebedur Titanium needles. Ill try these out this week and let you know what happens. Its threaded properly.

Answering my own question: I pulled apart the stitch length control mechanism behind the knob. There is a cam in there that accepts a pin. The pin moves the stitch length mechanism which changes the looper tensioner and the feed stitch length. The pin was off the cam apparently. Putting it back together after cleaning and oiling and I can now change the stitch length and get rid of the fabric bunching in front of the puller. The puller and feed dogs now work together. Time to put the machine on a stand with a servo motor.

I bought a Pfaff 5642 two thread chainstitch machine. Yes, I know its a 401 chain stitch machine (like the hem on jean pant legs) but I have wanted to try one out after seeing so much commercial canvas sewn with one. I think its a late 80's machine. Not having a bobbin is a big advantage when doing larger canvas projects. This machine is built like a tank. I've seen engine blocks with thinner cast iron. This machine has a built in fabric puller. The bottom roller is knurled steel and the top roller is soft rubber. When running the machine by hand, its obvious that the puller lags the feed dog. Material begins to bunch up in front of the puller. I pulled the center cover off the machine, and the shaft that drives the feed dog is geared to the bottom puller drive roller. So it appears that the puller "pull" is a fixed amount for every stitch. Does that mean that the puller dictates the stitch length? I'm new to "pullers". If I make the puller drive roller larger in diameter, more material will be moved for each stitch. I could make a bigger drive roll or temporarily wrap friction tape around it to make it bigger. What do you think? Per the manual, the stitch length is adjustable per a handwheel at the right side of the machine but that doesn't seem to be doing much. Perhaps I need to tear into that to see if something has fallen out, disconnected itself etc. Every machine I have purchased has had something wrong with it. This is likely not an exception. But at least it sews, nothing is worn loose, and internally it is very clean. Thanks!

Thanks guys. The little plastic pots I've seen say v69 thread max. But maybe thats wrong. I really thought a 22 needle should be big enough but ill get some 23s and consider your needle brand recommendations. Im sewing mostly through two layers of WeatherMax 80 poly canvas and sometimes also two layers of polyester binding. With the dense binding it can be a challenge.

No. Im using a #22 needle with V138. If i lube the thread, no issues at all. I take the spool off the spool rack and spray it with silicone lube. (A bit messy). But of course it not consistently lubed throughout the spool. I think a lubricator would solve the issues. I like things to "just work". Thanks for the reply!

I have issues sometimes with heavier thread, like V138 shredding at the needle on my Pfaff 1245. I have sprayed my thread spool with silicone spray and that helps but its not consistent. Perhaps I need to spray it more consistently? I went looking for thread lubricators and not many are available. None looked worth the $. Many said V69 and below. Im pretty sure many more were available years ago? Should I make one? What do you guys do? Dave

The right hand twist thread arrived yesterday. Its a V138 bonded polyester that looks nearly identical to the Dabond polyester that I have been using. I did nothing to the machine other than remove the existing left needle thread that was a left twist thread (Z twist - standard thread) and I replaced it with the right twist (S Twist) thread. Wow, what a difference! No unraveling at all. The stitches on the right and left side now look the same. The left top thread looked a little odd before. Not a huge issue, but they did look different. If you have a dual needle machine and the left needle thread is unraveling, get some right twist thread. I bought the thread from "The Thread Exchange" in North Carolina. I think it was $29 plus $10 shipping for a pound. Trivantage has right twist thread as well, but I don't have an account with them yet. Trivantage also has right twist thread in PTFE in V90 and V138. Here are the threads slack in the machine after sewing about 15 feet of stitches. Notice that both thread are wound tight, no unraveling. Compare this to the picture above with the left hand twist thread in the left needle.

Thanks Wizcrafts. I'll look into that. I'll also let you know if the right hand twist thread fixes this issue or not. The thread post that Michiel showed might help.

Thread post. Interesting idea. There aren't traditional thread posts on this machine. They are identical to the ones in video. The post is horizontal and has one hole in the side of it, then the post becomes tubular and the thread goes through the tube. Pretty odd. None of my other machines have that type of post/guide. I have one wrap around the post before the thread goes into the tube.. Now I wonder would would happen if I put several wraps around the post?? Hmmmmm.......

>>As an experiment, try using only the left needle and feed the right thread to its guide hole. I did that and I isolated the problem to the left hook which simply untwists the thread. I also checked for burrs everywhere. However per Constabulary's mention of the thread lubricator, I found a piece of foam, cut it and and pushed it into the holder and lubed it with sewing machine oil and put the threads behind the foam. I also re-threaded the machine per the video, which is how it was threaded when I got the machine. I had cleaned the tension mechanism when I took it all apart looking for burrs. Nothing was found but there was a lot of dirt/gunk in the disks. Now the tension system seems to be much smoother than when I first got the machine. The gunk must have been affecting the tension mechanism. Now everything is different. The left hook is still untwisting the thread. Yet the machine runs ok now, even at high speed, and the stitches look good. So I think the only way to get rid of the untwisting is to use the right hand twist thread as was mentioned at the beginning of this message thread. However it is really nice that I can now run regular left hand twist thread and the machine will function! :-) The fact that the thread is untwisted somewhat is not great, but its not very noticeable in the finished stitches. Still, I think having a right hand twist thread in the left needle would be better. I have a pound of V138 right hand twist, on its way. With the thread lubricator/guide in place, the thread is apparently under better control between the takeup arm and the thread guides at the needle bar. I wonder how long my "foam" lubricator block will last. I used a small piece of foam carpet padding as the donor material for the lubricator block. I think it is polyurethane foam. I added a pict of the current machine threading and the results of my latest test run. The unraveling of the left thread is not obvious in the picture since the takeup arm is up all the ways so the threads are under some tension. The test run is about 24 feet of stitching. About half of it at full speed, which I think is about 2300 spm. There are some double stitches in there as I was testing the reverse as well. Anyway, I am going to consider this problem solved for now. I'll let you know how the right hand twist thread does when I get it. I think the key fix was the lubricator/thread guide, which keeps the threads under better control. I'm always amazed at how much a little, seeming insignificant change like this can really make a huge difference on a sewing machine. Thanks for the help everyone!

Thanks for the reply! So that's a thread oiler/guide. That makes sense. Thanks for the parts reference. I went and looked at the machine again and both of the hooks rotate clockwise. But only the left thread has this issue. Do both of your machines hooks rotate clockwise as well? I have always used bonded polyester thread as it is the most common thread in the US for sewing Polyester Canvas and boat sails. But like I mentioned, the thread is easily untwisted. So its not very "bonded". I didn't notice the error in his tensioning setup. Does your machine also have the small pins next the friction disks in the tension mechanism? Do you wrap the thread around those pins as he mentions in the video? I was doing that and I was getting inconsistent tension, so I rerouted the threads to not use the small pins and tension control seems to be improved. I thought that perhaps pulling the thread around the pin might be unraveling the thread, but that was not the case. Here is a picture of my left thread after sewing a few feet of stitches. Its unraveled all the way up to the takeup. I wonder if the thread you use is more tightly wound than the thread I am using. Perhaps it is untwisting, but not enough to show the individual strands? Thanks, Dave

Sorry to resurrect a sleeping message thread but I have the same issue, I think. I just bought what appears to be a Consew 339RB clone. Its a double needle machine. The guy I bought it from complained that it had issues and he mentioned issues with the left needle shredding the thread. I re-timed the right hook and that solved most of the issues. However, the outside/left top thread keeps untwisting and after several feet of stitching, the top left thread is not a thread but a number of loose filaments! The left hook is apparently unwinding the left/outside top thread. I ran into this message thread looking for a solution. I tried both V92 and V138 thread and some different versions of bonded poly and the left hook is very effective at unwinding the left top thread no matter what. "Bonded" Poly is not THAT bonded! However, after looking at another Youtube video of a very similar machine, I realized that there is supposed to be a wad of cotton, foam, or felt that holds the threads leading to the needles up against the machine. My machine has the chrome "wad of felt/cotton holder" but the wad is missing. Could the purpose of that wad of cotton also be to keep the thread from unwinding back to the tension mechanism? Look here at 2:25 and you can see the chrome cotton holder and the cotton pressing the thread against the machine. I did find some right twist thread online and I have a pound of White V138 coming but this right twist thread is pretty rare. Trivantage has some, but I'm not a customer, but even then they only have it in black and white. So is this a burden that users of double needle machines must deal with? I thought I would just lube it, load it up with thread, correct the timing and it would work fine with "standard" left hand twist thread. Not so. Thanks, Dave