Machifit DMC-250-000 Cuniform GIB Type Quick Change Tool Post QCTP [unbox / review / first test]

[@philchadwick9470]

Thanks, most informative video on the 250-000 I've seen so far. Excellent presentation.

[@cybermaus]

Good review. Measurements was what I was looking for, and you gave those.

[@johnsmith1882-x2i]

2:20 the bottom plate may be for mounting to lathes that have a T slot on the compound

[@TinC33]

Thanks for info

[@marcoam2610]

But how will you fit that to a T-slot?

[@johnsmith1882-x2i]

@@marcoam2610 you’d have to mill the plate to fit your lathe’s slot

[@KangaBear99]

Thank you for the detailed information and a great video presentation. I purchased the 250 series for my lathe and didnt understand the 250 004 as well. My boring bars did not fit. I will do the modification that you described. I have a T slot on my existing tool post so I milled the plate supplied down to fit.

[@jirvin4505]

Fun question - is there enough material left in your original aluminium tool holders to recut dovetail to use on your new steel tool holder?

[@TinC33]

No, i need to make new ones, funny fact, i just reaceived qctp 250-222 those days for my new lathe. kzbin.info/www/bejne/hmqoe3lopNiYi8U

[@AHTiraq]

I have a question I would like answered, does this tower fit the Emco SL mini lathe?

[@isidoromaich7226]

That qtcp seems to be very adequate for small lathes, I will take a look this at BG. 2:39 that helper is very serious at work 🐶😅 good boiii ^^ 12:24 I never drilled like that! I need to give it a try, for sure It will be very nice to see you making the additional tool holders 👍

[@TinC33]

yes the'r quite good for the price, he always got that serious/angry look, but he's so sweet, i can't bealieve how dog changed our lives in good meaning, yea i need to make some more holders soon, there are tomuch exchange now.

[@marcoam2610]

Found „OXA Wedge Type Tool Post Set“ on ebay. Is it exactly the same as the one you are reviewing here („Machifit“)? Same manufacturer, just differently branded?

[@TinC33]

Yes lot of chance it come from same manufacturer

[@georgedennison3338]

Something I do when set screws are small & get used frequently is replace them w/ socket head cap screws. This provides the same function but use a larger hex, reducing stripping/wear out of small set screws. Occasionally, the heads of the cap screws are too large & need to be turned down. They can turned quite small & not break out.

[@winandd8649]

I need to do that 250-004 boring bar holder modification too 😎..none of my boring bars fit...

[@juliusvalentinas]

What about multifix? Seems better, but why are there 3 types of holders only???

[@gangleweed]

I have one of these QCTP's on my lathe and bought 6 tool holders with it..........then I bought 4 more.........the problem is 2 fitted OK and locked up but the other 2 would not lock and needed 1mm thick shim on the outer faces of the dovetails before they locked up, so I tig welded 1mm thick shim steel plates around the edges of the dovetails and then polished them up.

[@TinC33]

Great solution, but disapointed that they changed dimension from series to series, otherwise they're great holder for the price, check my other video where i make aluminium holders by myself.

[@gangleweed]

@@TinC33 I don't think they change dimensions intentionally from one manufacturer to the other in the same series, it appears that the manufacturing dimension vary from one to the other due to tolerances.......it is difficult to actually measure each tool holder dovetail from one to the other as the actual dovetail does not determine the locking point. It is OK if the holders are made in a jig with the same setting, but when different makers attempt to make them the measuring tolerances will vary unless a master test tool post is used at time of making. It would almost seem that they are made and then selected in batches to all fit on one master gage but you can't have holders that are above or below tolerance fitting the same tool post.........don't ask me how I found that out.

[@TinC33]

@@gangleweed that's what i think, i know how delicate is this measure, one wrong pass and holder become useless 😅 kzbin.info/www/bejne/hmqoe3lopNiYi8U

[@MrDrek44]

Would this quick change toolpost fit a small lathe with "base" for toolpost with dimensions 70x70mm?

[@TinC33]

It will fit but would take a bigger version, check on banggood i think next size is 250-111

[@O_JAVATEKNIKMANDIRI]

Thanky for info brother

[@marcoserra3798]

Hello,clear video!but this holder is suitable to an 8x16 lathe or i must look to something bigger?i have 12 mm tools ,so i guess they mount in the 250 000...thank you!

[@TinC33]

That one is for 10mm tool, 12 maximum, for your lathe i'll took a series or two bigger, so you can insert 16mm tool into.

[@marcoserra3798]

@@TinC33 so...250 111 if i'm not in wrong,right?thank you...

[@TinC33]

@@marcoserra3798 250 201 will be right for you so 200 series its for 5/8 tool, series 300 is for 3/4 tools.

[@marcoserra3798]

@@TinC33 thank you,but i must understand what is the right turret to buy...you are talking about the tool receiver i guess..sorry for my bad enghlis..

[@TinC33]

@@marcoserra3798 they got mess with measures on their site, check the one 250-000 where you got measures from all the types, so you will see what type you'll need i thing 200 or 300 series will be for you, so 250-222 or250-333 will be for you but i can't find it on banggood only 250-300 (piston type)

[@razvanon]

how do i find a bigger version of this 250-000 ? maybe that 250-333 or even 250-444. I can't even see the option of asking the seller about it ?

[@TinC33]

You can check on banggood they got some more sizes, go to banggood and searc for "tool post" good luck.

[@razvanon]

@@TinC33 i tried everything. It's not there

[@TinC33]

@@razvanon then you'll need to check some other store try chronosltd co uk or some local shop

[@markoreilly3414]

For people who are researching QCTP's, as i have been recently, There is 2 different Part-off Holders ~ 1 - has the Blade angled up to create front clearance - the type you have shown here. & 1 - where the Blade is Horizontal - you grind your own front clearance. The Horizontal type is a better design & fit, for a 7x14 Mini Lathe & doesn't require modification to fit.

[@EigenkonstruktDe]

Thanks for the Video 🙋🏼‍♂️ im going the same way: bought and used an aluminium toolpost, now im looking for something better.

[@TinC33]

That one is really much better, heavy and stiff.

[@daniellindholm]

I didnt get it completely... they are instable or good enough to try out_ Great video though.

[@TinC33]

I think it's great for the money or even more, i use it for a while now and can't say a bad word about, also chip inside wasn't a problem.

[@daniellindholm]

@@TinC33 Thanks for the quick response!!

[@claeswikberg8958]

"rock solid", proceeds to push it down by hand...

[@TinC33]

true, but i just slightly tighten.

[@19mati67]

Aluminum tool post is a bad idea. Also the piston style. Buy the proper one from the get go. This way, you are wasting money and extra work, by going cheap the first time, and then with the more expensive one. There is a saying, I'm not that rich to afford the cheap stuff.