Search:

Progress has been pretty slow on this project for a while. But managed to get some time today to come up with a solution for my pulleys.

I wanted to use a 56:18 gear combo to get a slightly higher...

Yeah thats a good shout. I used the masking tape and super glue method. Couldn't fit this part on the vice i had.

If i have to use this work holding technique again might try and put a DTI...

Progress has been pretty slow on this project for the last couple of weeks.

I did manage to find some time to machine the Ali plate on the cnc. The slots that allow the air to flow from the...

Hi,

The seller i used was: https://m.aliexpress.com/store/storeHome.htm?sellerAdminSeq=206234721&spm=a2g0n.detail-amp.store-card

Communication was really good and the item was shipped pretty...

Sorry for the delayed reply.

Its one of those cheap Chinese servo motors and its rated to 3000rpm. I would have thought with a different drive i could probably run it higher but i am unsure how...

Hi,

The spindle is rated for 12,000 rpm but the servo motor is rated to 3000 rpm (1.8Kw, 6N.m and 18N.m peak). I plan to gear the spindle with 3 options 22:56 , 56:20 , and 40:40 (Spindle:Servo)...

Thanks for the replies. I chose my configuration mainly based upon the reading in the SKF bearing book and speaking to colleagues however since they are budget bearings from china I am bit dubious...

I would love to build my own spindle one day but I certainly don't have the right tools atm. One day maybe :)

I have ordered 60 degree angle Back to Back (DB) matched bearings. They are ground...

Thanks for the replies,

@pippin88 Unfortunately I didn't take much photos after that point on the build thread. I'm still using the table from my previous CNC so didn't have to build another....

I thought i'd make a post on a spindle assembly endeavour I am about to embark on. I should first point out the CNC i'm planning on mounting this too is probably not stiff enough to take full...

It's been a while since i've posted and during that time not a huge amount has been done on the CNC. I have been spending most of my time making some walnut drawers, I've made a set of steel boxes,...

The last couple of weeks have mainly been painting the gantry components and frame. Progress has halted on the build as i'm at the stage of putting the machine together and wish to make a set of...

384548
Trial fitting all the frame pieces.

384550
First couple of welds. Used a bit of vegetable oil on the milled surfaces to prevent any splatter from sticking, Also used some aluminium foil...

A collection of photos from putting the frame together. Seems like I see a 0.08mm deflection if I push really hard against the z plate when its fully extended and the DTI is mounted on one of the...

384516
Machining the Y axis plate, This is most likely to be temporary part.

384518
384520
A couple of defects in the gantry side castings.

384522
The Machined Gantry Sides

Hi Ian,

Thanks for the reply, Yeah I understand I wont be hogging steel all day. Tbh I don't see myself needing to mill steel often, although the goal of the CNC was to machine it, it wasn't to...

384484
Top Half Of the pattern

384486
Cope half of the Gantry Sides, Using greensand with about 4% coal dust

384488
Drag Half with no gates or runners, This was a pain to get right....

Hi all,

After 2 years of designing and building I’ve finally got around to creating a build thread for my new CNC. I’ve been meaning to write a post up on here for a while, and if I decided to...

Sorry for the long delays between posts, my exams and all have kicked in and have had little time to work on the machine.

The parts I want to do are the gantry sides, they weigh about 10kg each,...

oh and looking over some of my calculations in my previous post the equations didnt come out as expected and some of the numbers should be in fact be to the power off rather than multiplied

ahh thanks guys for the replies, haven’t done all that much with the machine since my last post as I have my year 13 exams coming up. I see your concern with the z axis linear rails I managed to get...

And a 700w wood router is pretty much next to useless when it comes to steel, but im out of money so will have to keep my current router, dont get me wrong it does the job but fairly slowly and with...

Thanks for the replies, been doing a few calculations using beam theory to work out the deflection my gantry sides will undergo (modelling them as cantilevered beams fixed to my frame).

Using the...

Haven’t posted anything on here for a while so if there are any followers I do apologise. The machine is essentially finished, there are a few bits here and there I need to finish up but I can now...

Thanks Ian for the fast reply, didn’t think about the swarf blocking the threaded holes. Ahh i was toying with the idea of building a T slot table but never thought of using multiple box sections...

Hi guys, I havent done alot with the machine since I have had my year 13 jan exams but have managed to fix the X and Y axis to the main frame. Will upload some pics in the next couple of days.
Im...

thanks guys for your replys, i see your point jsheerin im planning on using the space avalible within moving x table for the milling coolant, but if its not stiff enough i will do what you have said...

i will upload a couple more pics in the coming days

As requested bob

my previous furnace had a bore diameter of 18cm and a height of 25cm so was small, I built it during 2010 and have been using it for over a year now but finally i thought it was...

It’s been ages since I’ve posted anything on here, and although progress is slow i thought i would post some pics of machine so far.

Since my last post i have built a larger furnace and have...