Magnetic DRO for my Emco lathe

I fitted a little (cheap!) magnetic DRO to my Emco lathe. But it went a bit wrong due to a silly mistake!

[@victormanuelgarciabecerril3520]

is posible get zero in the all axis ??? in the other dro only push x or y button get a zero axis , in this dro how is ????

[@andrewcrist1676]

I had the same problem which i solved. Set your work piece in the lathe, bring cutting tool to where you will begin cutting. Dial in the P1-01 setting for X axis set values to zero and save. Do the same for Y axis P2-01 and save. Your read out should now be at 0 for X zero for Y... Documentation for this product is limited you have to figure everything on your own...

[@simongeary3962]

cannot see why you needed that bracket sticking out the back , I mounted mine in the bed gap at the front , nothing sticking out at all and interfering with nothing, small piece of ally extrusion above the strip to keep the swarf off

[@eugene4154]

You have very kindly highlited a flaw in the system, now how does on overcome this???? Does one need to place a electromagnetic screen around the device like copper mesh, covering sqy a aluminium channel section that then covers the strip and sensor, One often needs to use a clock or fingure gauge with a quick release magentic base and we dont need this being a regular occurance When useing a QRM on and edm device one always insulates the base from the table with just a piece of paper but that was to prevent the system electronics travelling through the dial gauge It would be interesting to know the solution, surely the manufacturers know about this, Do we assume because its magnetic strip ...never use on metal lathe ????

[@asciimation]

I gave up in the end I am afraid. It could just be I was trying to do it on the cheap so the ones I got weren't very good. I changed to the caliper kind and those have been working fine (so far)!

[@米斯特测控]

Thank you very much for your recognition of our product!

[@ruicardo9962]

É possível aumentar o cabo de ligação entre o sensor e o display para 8 metros

[@nutgone100]

I bought one of these months ago, finally got around to fitting it over the weekend(I sliced my finger too 😂). I couldn’t get mine to read anything like sensible, it would go back to zero each time, but the readings other than that were all over the place & not repeatable. I’ve ordered some new magnetic tape from a reputable UK company (just a short section for the cross slide) but I’m not holding out much hope. I’ve got a clip-on digital sliding scale for the main bed travel (I tried one of those permanently mounted scales but every time I use coolant it would ruin it & despite several attempts to proof it, it just never worked, so the clip on one is ok & pretty accurate, but it doesn’t let the tailstock go past, which isn’t the end of the world but still a pain). I find the hand wheel on my cross slide is accurate enough for most jobs, but a DRO would be better. I’m not prepared to spend a fortune on one though, so if this doesn’t work I’ll probably give up, or maybe buy the Warco kit (it’s a Warco mini lathe that I’ve quite heavily modified as I use it almost daily in my work rebuilding magnetos). I just wish I’d looked at this video before buying this, I might not have bothered. It was around £60 though, so again not the end of the world. Thanks for the video.

[@asciimation]

I could never get it to work right and I tried three different suppliers of the tape. The Shahe caliper type I am using now seems a lot better. It did start going wrong but that was because one of my scales was slipping so I need to tighten that up.

[@bcs7686]

So I just purchased one of them from aliexpress and after reading this comment and looking at some of the others I thought it was doomed and i wasnt going to bother fitting it but I just ran it up and down the mag strip a load of times using the end face of the sensor and a few scribe lines as references and it seems to work perfectly I was really happy with it I wonder if they fixed it or the tape or something only difference I could see is my tape had another tape to put over it like you mentioned

[@markhendry1761]

Great video. Thanks for showing your troubleshooting of the issue too. Personally, that would have taken me an age to figure out.

[@asciimation]

The new tape arrive today so hopefully this weekend I can see if that fixes it!

[@nickjohnson6095]

The threaded hole at 5:29 on mine holds a bolt which locks the cross slide movement which is almost essential for milling but of less use for turning.

[@asciimation]

Ah, thank you, that makes sense. There is a similar bolt hole on the carriage to lock that with a 6mm bolt in it.

[@robertocelso]

Você calibrou? P1 + 3 ?

[@scottvallance2007]

I bought one of these for my lathe after watching this video. Only problem is my didn’t come with any instructions. I don’t suppose you could post a photo of your instructions could you please.

[@asciimation]

I'll have to try to find them. They were a little tricky to follow. Sometimes Aliexpress listings will have the instructions on them.

[@scottvallance2007]

@@asciimation don't worry mine was faulty so I am going to return it and buy something else.. Thanks anyway

[@templar084]

or the m2 sensor screw

[@winandd8649]

Great! 've got an Emco lathe with almost the same castings / base Very inspirational video. Can you tell me how these magnetic strip hold up until now? Are they working reliable?

[@asciimation]

No, they are terrible! If you watch more of my films you'll see. I am replacing them at some point with a different style of DRO actually.

[@winandd8649]

@@asciimation Thanks! Good to know!

[@andrewcharman9238]

Thank you! How could you set it up so precisely? I could not get! There is not a single word about this in my instructions. Please share information if possible. Thanks again.

[@asciimation]

The problem is it isn't precise. I found it skips in places. I don't have the instructions in front of me but there is a setting where you can put in a correct factor if the measurements don't match reality. I compared the measurements on the handwheel over a full travel to what the DRO said and adjusted the scale appropriately.

[@andrewcharman9238]

@@asciimation Can you tell me how to calculate the correcr factor? Thank you.

[@sblack48]

Seems strange that they don’t make it for mains power

[@asciimation]

The batteries are for memory backup I think. It has a 12 volt power input so I just used a wall plug type supply.

[@Phantom-mk4kp]

I always thought the strip had to be an inch or so away from the steel bed on a a length of extruded aluminium

[@asciimation]

Maybe? That could be what's wrong but the instructions don't mention that. The long one is mounted straight to the cast iron bed and that one seemed to be more accurate.

[@Phantom-mk4kp]

@@asciimation 👍

[@akka4751]

the problem at the end apart from the magnetic base of the dti was the aluminium plate???? i didn't understand

[@asciimation]

No, the problem at the end was the magnetic tapes just aren't very good. I think tried 3 different ones in the end and they were all glitchy. I don't think there is anything weird on the lathe (like being magnetised) as they were glitchy off the lathe too.

[@akka4751]

@@asciimation did you solve the problem changing the magnetic tapes? i have exactly the same problem and i don't know if to throw everything in the garbage or give a try with replacing the tapes.....

[@asciimation]

@@akka4751I tried three in the end, and different parts of the tapes too and I always had the problem. I am going to replace the magnet tape type with the caliper type ones instead. I just haven't had a chance to do/film that yet.

[@asciimation]

I am switching to these: www.amazon.com/SHAHE-Digital-Readout-Linear-Scale/dp/B089ZSG84J?th=1

[@bbbnz50]

Thanx for showing info

[@Farins79]

thanks for the video

[@asciimation]

I am annoyed I couldn't get mine to work right. I should do an new film on the new DROs I have now. They are Shahe Dro's (from Amazon I think is where I got them). Maybe I can fit them this weekend. Looks like the weather will be bad so a good inside job to do.

[@bbbnz50]

Im fitting a mill with the s/s tape, do you find it ok cheers thanx

[@asciimation]

I found it very unreliable. That could have just been me doing something wrong but I suspect there are better options. My mill was big enough to fit a proper glass scale DRO and it works very well. My mill is smaller so I have some new caliper style DROs to try instead.

[@MichaelKilpatrick-su1ys]

@@asciimation If you notice all the more expensive units have shielded cable, me thinks possible electrical interference

[@asciimation]

@@MichaelKilpatrick-su1ys Yes, definitely a possibility.

[@simongeary3962]

I have a warco Mill with magnet strip I have had the mill 4 years , use it at least 3 days a week ,never had any problem whatsover .

[@reamer1363]

Great video I bought the same have just fitted so will let you know how it goes but looks good so far. I fitted the strips inside a piece of aluminium channel, so crossed fingers. I set the A as my X travel and was set to 2 on the compensation so reads as a diameter measurement. Seriously I have my fingers crossed lol