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Ditron DRO Sale on Ali

Susquatch

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Yurly has said that there are a lot of counterfeits on AliExpress. His page about scales suggests that Ditron and Sino are different companies but the link above uses both names.


I had problems with my old DRO and was looking for a replacement in October. I wanted an LCD DRO and 1um scales. Despite asking plainly and directly, twice, Ditron (at ditron-dro.com) would not offer anything better than USD $525 for that package. At current exchange rates, that's well north of CAN $700!! Prices on AliExpress were better but not a lot. An LED DRO would have been a lot less but I'm not into 80's nostalgia that much!

After looking at Ditron, I ordered a Sino DRO via AliExpress on October 31 for C$525 (delivery included).

3 Axis DRO Kit:
1 piece Sino SDS2-3VA LCD display, user manual, mounting bracket, power cable, screw bag
3 pieces 0.001mm Sino KA-300 scales, scale covers, mounting brackets & screw bags【70mm~1020mm】

Specifying the scale lengths is mildly stressful. After placing the order, I used the Message Center on AliExpress to tell them the machine travel lengths required for each of the scales. There was no response from them about this. Nonetheless, the package contained the right scales.

I don't have it installed yet but the system appears to work fine in bench testing. The scales and DRO were delivered in one week! UPS charged an additional C$53 (duty $5.22, GST $27.84, brokerage $17.65+$2.29 GST).

My only beef is that the supplied power cord is for Australia and, while apologetic, they basically refused to send me a North American version. The DRO adjusts to whatever voltage and frequency it receives so that's not a problem. I had an old cord with the needed C13 plug so I could make it work.

Craig

PS: Argh! Right now, the package I got is listed at C$440--$85 less than I paid:


Incidentally, direct links into AliExpress seem to die fairly quickly. There were several such links in an older thread but none worked anymore. As such, it was hard to tell from the old thread what actual configuration people were talking about.
 
My only beef is that the supplied power cord is for Australia and, while apologetic, they basically refused to send me a North American version. The DRO adjusts to whatever voltage and frequency it receives so that's not a problem. I had an old cord with the needed C13 plug so I could make it work.

Have you tried asking for (partial) refund through Aliexpress? They are very good at taking the customer side just like Amazon if photo and video proof is provided. Messaging the seller directly usually means leads to nothing so getting Aliexpress to step is the only way to remediate.
 
Have you tried asking for (partial) refund through Aliexpress? They are very good at taking the customer side just like Amazon if photo and video proof is provided. Messaging the seller directly usually means leads to nothing so getting Aliexpress to step is the only way to remediate.
Via their "EVA" chat window? Just started one...I'll follow up if it leads to anything.

Craig
 
Via their "EVA" chat window? Just started one...I'll follow up if it leads to anything.

Craig
I've only done it by requesting a refund but it has a limited window. The seller will reject your request and AliExpress can be asked to step in for arbitration. Don't let the seller make run you in circles because they do that in hopes the window closes before AD steps in.
 
I just noticed that Ditron has a big sale on right now. 32% off. Now is the time to get one if this is what you want.


It sort of vindicates what I have said elsewhere. They are still making money at 32% off. That means there is lots of room to negotiate if you are so inclined
Shows $550 is that after 32% off? I don't have time to install one right now but with prices going up im thinking of investing in one Now instead of latee.
 
Shows $550 is that after 32% off? I don't have time to install one right now but with prices going up im thinking of investing in one Now instead of latee.

Keep in mind, Ditron during normal times are willing to negotiate a much better price than the normal advertised price.
 
Despite asking plainly and directly, twice, Ditron (at ditron-dro.com) would not offer anything better than USD $525 for that package. At current exchange rates, that's well north of CAN $700!!

Keep in mind, Ditron during normal times are willing to negotiate a much better price than the normal advertised price.

Yes, that was really my point. I've done really well with Ditron in the past.

Here is a little negotiating advice for others. My experience with vendors on Ali is a bit like shopping at a flea market. Direct questions about better prices get you no where.

I don't waste my own time negotiating on low cost items. There is no point wasting their time or mine for $20.

For more expensive stuff - say over $350 Cdn (the higher the cost the bigger the opportunity), you have to be conscious of their business cycle and create an investment scenario where they feel like they have invested time in you that they don't want to throw away. But don't over do it or they will drop you like a hot potatoe.

I usually begin by asking for their name and then asking them questions about the weather, where they live and work, and how their business is doing. I look for clues about how anxious they are to make a sale. Usually, the best opportunities coincide with month end, quarter end, and year end. That's when their sales performance is under the most pressure. And remember, there is no point negotiating with someone who is not empowered to negotiate!

Once I have the lay of the land, I get a starting quote. I moan and groan about how high the quote is for what I'm getting. Then I ask about better or more expensive products and options. If I get the sense that nothing will happen, I don't quit, instead I'll say I'll think about it and chat back later. Often, that alone will start a negotiation. If not, no biggie, I just put it on hold for a week or two. I often get to my target price by getting them to offer me free or included options. Ali vendors will almost always go for that because it is not tracked. Nobody knows what they did for you to get what you needed to reach a buy decision. So never start with what you want. Start basic and build up to what you really want.

If and when I come to know it can't happen, I make a decision to pay the price I'm at or walk away and shop elsewhere.

Sometimes it helps to ask about past and future sales events. Such sales provide lower price rails you can work with. If they cooperate, you both know the sale price is negotiable. If not, you know it will be more difficult but not impossible.

And, so it goes. The first trick to successful negotiation is understanding what the other party needs to be successful. The second trick is patience. These Ali vendors are basically pros. Just like at the fleamarket, but on a much longer time scale. These guys and gals do this ever day. While you are scoping them out, they are evaluating you too. They can smell weakness. The key to avoiding a bad outcome is know in advance what a bad outcome and a good outcome look like.

And something @Dabbler said a while back that I really liked. "A good deal happens anytime that the buyer and seller are both happy".

So by all means have fun and enjoy the trip.
 
So what's a much better price people have gotten dealing directly instead of Aliexpress?

Can someone with a Bridgeport J confirm the travel length to spec for a DRO?

I got the information below from here and was just going to covert the units below and add 133mm as per the AX listing instructions:
Table travel: X-Axis 31” (With power feed 30”); Y-Axis 12”; Quill travel 5”; Knee travel (Z-Axis) 16”
 
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I negotiated a price of $600 all in with them for a 3 axis d80 with rpm system about a year ago. Another member got a similar deal. Mine is still in the boxes waiting for 'free time'.

I have a D80 on my Emco lathe and its been great.

EDIT, it was 2 years ago and it was 628 total, all in, after Fedex clipped me 28 bucks.
 
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So what's a much better price people have gotten dealing directly instead of Aliexpress?

I got a 4 axis + rpm with 1 micron scales for just under 400 all in plus a customs ding I didn't count on. Say 450 all said and done. But that was 2 years ago.

Here is a post that links to other posts that describes my deal as well as Bridgeport Install details.



Can someone with a Bridgeport J confirm the travel length to spec for a DRO?

This is what I installed on my JHead Bridgeport Hartford Clone. Note that I purchased a 4 axis plus rpm. The box was then programmed to combine Z and quill to get one total Z. But the box still displays 4 scales. I chose x, y, quill, z+quill. I reasoned that I change the quill much more often than the knee so I wanted quill and total not knee and total.

Y X Z Quill
12 30 16 5 inchs
320 770 420 130 mm

I think I may have trimmed the quill scale. The install thread linked above prolly details that.
 
@architect - I lied.

My quill scale is 9-3/4 including the scale mounts (measured just now). If I recall correctly, I redid it cuz I didn't like the first install. The required travel is fine as listed above, but it was too difficult to install like that. Most guys don't do quill scales, but I wouldn't give mine up. I love the combined readout cuz you can move both the knee and the quill and not have to reset your zero.

Here are my other lengths as installed (including the end caps)

X - 35", Y - 17", Z - 21"

Note that you have to clarify with the seller that this is with or without end caps and with or without the read head. Usually, you measure your total travel and they adjust for end caps and read head. But it is critically important that you are both using the same definitions.

Lastly, you specified a J-Head. But J-Heads came with different table sizes. I think both are important.

My table is 9x42.

The safest bet is to measure your travels and then let them adjust for the read head and end caps (which also vary).
 
Here are the unaltered lengths that are on both our bridgeport and my friend Brian's Bridgeport.

LO is the travel length of the magnetic encoder (in mm) without the end mounting pieces.


1731513552676.png


Well actually I didn't use the quill scale I made a custom fixture and inset magnetic tape. But none of the other lengths need trimming.
 
Thanks for the detailed, informative responses gents... but I double-checked and forgot my mill already has some Mitutoy 2-axis scales!

PXL_20241113_154520761.jpg
PXL_20241113_154422758.jpg

PXL_20241113_154527933.jpg


Not sure if I'm thread-jacking, but could someone point me to a compatible package for just the digital readout and cables? An "off-brand" model with off-brand pricing...

I had to drop my mill restoration work due to some big life changes (including illness in the family) but finally will pick up where I last left off this winter...
 
Thanks for the detailed, informative responses gents... but I double-checked and forgot my mill already has some Mitutoy 2-axis scales!

What! Throw those away!

Not sure if I'm thread-jacking, but could someone point me to a compatible package for just the digital readout and cables? An "off-brand" model with off-brand pricing...

It's my thread and I say it's not thread jacking. So there!

I had to drop my mill restoration work due to some big life changes (including illness in the family) but finally will pick up where I last left off this winter...

Life happens. I had wondered where you have been. Hope everything is ok.......
 
not of the completed scale. The mount without the tape glued in should be in a thread somewhere.

We will prolly never find that. You say you glued it in? Not double sided tape? As far as I can tell the factory in China uses tape.
 
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